LE CRATÈRE PLATON PAR JAMES NASMYTH

 

JAMES NASMYTH  (1808-1890)
Le cratère Platon (2000m)
La Lune, Système solaire

In Plato Crater Moon, photographie retouchée sur appareil Nasmyth, 1855

Le relief
Platon (2000m de profondeur) est un cratère d'impact lunaire situé sur la face visible de la Lune. Il se trouve au nord-est de la Mare Imbrium et des Montes Teneriffe, à l'extrémité orientale des Montes Jura et à l'extrémité occidentale des Montes Alpes d'où partent des crevasses lunaires dénommées Rimae Platon. Au nord s'étend la Mare Frigoris. Le contour circulaire possède de nombreux pics qui donnent des ombres à l'intérieur du cratère. L'intérieur du cratère a un albédo, apparaissant lisse sans présence aucune d'impacts quelconques. Le cratère Platon est connu pour être un lieu de phénomène lunaire transitoire (PLT) consistant dans l'apparition d'une lumière ou d'une modification d'aspect de sa surface lunaire pendant une courte durée. 

L'artiste
James Nasmyth est un mécanicien et astronome écossais, au talent artistique certain,. Fils du peintre Alexander Nasmyth, il montra de bonne heure de grandes aptitudes pour les mathématiques et la mécanique, travailla de 1829 à 1831 chez le constructeur Henry Maudslay, puis fonda à Particroft, près de Manchester, un important établissement qui prospéra rapidement sous le nom de fonderie Bridgewater et qu'il pourvut d'un outillage perfectionné.
Parmi ses nombreuses inventions, il faut surtout citer le marteau-pilon, dont il paraît avoir eu l'idée en même temps que le Français François Bourdon. On lui doit également une cuiller de sûreté pour les fondeurs, un ventilateur pour les mines, un laminoir, une machine marine, etc.  Il s'était retiré en 1837 à Penshurst (comté de Kent), s'occupant avec passion d'astronomie et prenant, avec des appareils de sa construction, des photographies du Soleil et de la Lune, qui comptent parmi les plus remarquables qu'on ait jamais obtenues. Il a également inventé le télescope Nasmyth, une variante du Cassegrain.

_________________________________________

2024- Gravir les montagnes en peinture

Un blog de Francis Rousseau 

 

LUNAR CRATER COPERNICUS SKETCHED BY JAMES NASMYTH

JAMES NASMYTH (1808-1890)
Copernicus Crater (- 3800m / - 12467ft)
The Moon (Solar System)

In Drawing of the Copernicus crater on the surface of the Moon, between May 1856 and May 1890, Fitzwilliam Museum, University of Cambridge Nasmyth

The artist
Jamesall Nasmyth (sometimes spelled Naesmyth, Nasmith, or Nesmyth) was a Scottish engineer, artist and inventor famous for his development of the steam hammer. He was the co-founder of Nasmyth, Gaskell and Company manufacturers of machine tools. He retired at the age of 48, and moved to Penshurst, Kent where he developed his hobbies of astronomy and photography.
Nasmyth retired from business in 1856 as he said "I have now enough of this world's goods: let younger men have their chance". He renamed his retirement home "Hammerfield" and happily pursued his various hobbies. He built his own 20-inch reflecting telescope, in the process inventing the Nasmyth focus, and made detailed observations of the Moon. He co-wrote The Moon : Considered as a Planet, a World, and a Satellite with James Carpenter (1840–1899). This book contains an interesting series of "lunar" photographs: because photography was not yet advanced enough to take actual pictures of the Moon, Nasmyth built plaster models based on his visual observations of the Moon and then photographed the models. A crater on the Moon is named after him. In memory of his renowned contribution to the discipline of mechanical engineering, the Department of Mechanical Engineering building at Heriot-Watt University, in his birthplace of Edinburgh, is called the James Nasmyth Building.

The site
Copernicus (- 3800m / - 12467ft) is a lunar impact crater located in eastern Oceanus Procellarum. It was named after the astronomer Nicolaus Copernicus (1473-1543). It typifies craters that formed during the Copernican period in that it has a prominent ray system. It may have been created by debris from the breakup of the parent body of asteroid 495 Eulalia 800 million years ago.  Copernicus crater is visible using binoculars, and is located slightly northwest of the center of the Moon's Earth-facing hemisphere. South of the crater is the Mare Insularum, and to the south-south west is the crater Reinhold. North of Copernicus are the Montes Carpatus, which lie at the south edge of Mare Imbrium. West of Copernicus is a group of dispersed lunar hills. Due to its relative youth, the crater has remained in a relatively pristine shape since it formed.
The circular rim has a discernible hexagonal form, with a terraced inner wall and a 30 km wide, sloping rampart that descends nearly a kilometer to the surrounding mare. There are three distinct terraces visible, and arc-shaped landslides due to slumping of the inner wall as the crater debris subsided.
Most likely due to its recent formation, the crater floor has not been flooded by lava. The terrain along the bottom is hilly in the southern half while the north is relatively smooth. The central peaks consist of three isolated mountainous rises climbing as high as 1.2 km above the floor. These peaks are separated from each other by valleys, and they form a rough line along an east–west axis. Infrared observations of these peaks during the 1980s determined that they were primarily composed of the mafic form of olivine.
Copernicus H, a typical "dark-halo" crater, was a target of observation by Lunar Orbiter 5 in 1967. Dark-halo craters were once believed to be volcanic in origin rather than the result of impacts. The Orbiter image showed that the crater had blocks of ejecta like other craters of similar size, indicating an impact origin. The halo results from excavation of darker material (mare basalt) at depth. 


_______________________________________

2021 - Wandering Vertexes...
by Francis Rousseau

MONS RÜMKER PHOTOGRAPHED BY APOLLO 15 MISSION

APOLLO 15 MISSION (July 26, 1971-August 7. 1971) 

Mons Rümker (1,100m -  3,609 ft) 

The Moon 

This picture of the Mons Rümker was taken from the NASA Apollo 15 mission while in lunar orbit. 

The mountain 
Mons Rümker (1,100m -  3,609 ft) is an isolated volcanic formation that is located in the northwest part of the Moon's near side, at selenographic coordinates 40.8° N, 58.1° W and is the planned landing site of the Chang'e 5 mission. The feature forms a large, elevated mound in the northern part of the Oceanus Procellarum. The mound has a diameter of 70 kilometres, and climbs to a maximum elevation of about 1,100 metres above the surrounding plain. It was named after the german astronomer Karl L. C. Rümker (1788-1822). 

Mons Rümker has a concentration of 30 lunar domes—rounded bulges across the top, some of which contain a small craterlet at the peak.  These are wide, circular features with a gentle slope rising in elevation a few hundred meters to the midpoint. Lunar domes are similar to shield volcanoes, and are the result of lava erupting from localized vents followed by relatively slow cooling.
Mons Rümker is surrounded by a scarp that separates it from the adjacent mare. The plateau rises to an altitude of 900 m in the west, 1,100 m in the south and 650 m in the east. The surface of Mons Rümker is relatively uniform, with a strong spectroscopic signature of lunar mare material. The estimated volume of lava extruded to create this feature is 1,800 km3.

The mission
Apollo 15 was the ninth manned mission in the United States' Apollo program, the fourth to land on the Moon, and the eighth successful manned mission. It was the first of what were termed
"J missions", long stays on the Moon, with a greater focus on science than had been possible on previous missions. It was also the first mission on which the Lunar Roving Vehicle was used.
The mission began on July 26, 1971, and ended on August 7. At the time, NASA called it the most successful manned flight ever achieved.
Commander David Scott and Lunar Module Pilot James Irwin spent three days on the Moon, including 18Ѕ hours outside the spacecraft on lunar extra-vehicular activity (EVA). The mission landed near Hadley rille, in an area of the Mare Imbrium called Palus Putredinus (Marsh of Decay). The crew explored the area using the first lunar rover, which allowed them to travel much farther from the Lunar Module (LM) than had been possible on missions without the rover. They collected 77 kilograms (170 lb) of lunar surface material. At the same time, Command Module Pilot Alfred Worden orbited the Moon, using a Scientific Instrument Module (SIM) in the Service Module (SM) to study the lunar surface and environment in great detail with a panoramic camera, a gamma-ray spectrometer, a mapping camera, a laser altimeter, a mass spectrometer, and a lunar sub-satellite deployed at the end of Apollo 15's stay in lunar orbit (an Apollo program first).
The mission successfully accomplished its objectives. Ironically, this mission was one of very few that had been honored with the issue of a commemorative US stamp, with this first use of a lunar rover happening one decade after the first Mercury astronaut launch.

___________________________________________
2019 - Wandering Vertexes...
by Francis Rousseau

SOUTH MASSIF BY NASA APOLLO 17 MISSION (1972)

NASA APOLLO 17 MISSION (1972)

 South Massif (2, 300 m - 75, 46ft)

The Moon

1.  In Astronaut Harrison Schmitt next to a large boulder in the Taurus–Littrow valley on the Apollo 17 mission . The South massif is visible to the right. Original NASA caption. 1972

2.  In  South Massif - North facing slope of South Massif, with the 3.6 km diameter Ching-Te crater in the background, Original NASA caption, 1972

The mountain 
South Massif  (2, 300 m - 75, 46ft)  is, according to lunar standards, a relatively modest mountain, but with a rich history (geologic and exploration).  South Massif is located at the edge of the Serenitatis impact basin on the Moon's nearside and borders the Taurus Littrow Valley where the Apollo 17 astronauts landed and explored.
The oblique view (n°2 above) dramatically shows the north-facing slope of South Massif, with the 3.6 km diameter Ching-Te crater in the background. From summit to base, the massif's relief exceeds that of the Grand Canyon.
The distinct high reflectance deposit that spreads across the Taurus Littrow valley floor formed as a giant landslide from the north face of South Massif. Apollo era scientists proposed that the landslide was caused by ejecta from Tycho crater landing on the summit and south side of the massif. The resulting seismic jolt sent regolith sliding down the steep north slope resulting in the distinctive landslide we see today. Look closely at the summit, you can see what appears to be dark and blocky material that may be a deposit of now solidifed impact melt from the Tycho event.  Sampling the landslide was an objective of the Apollo 17 mission. By  determining how long rocks had sat on the surface of the slide scientists could know the timing of the formation of Tycho crater, which is more than 2000 kilometers to the southwest.
As it turns out, the exposure ages of the samples brought back from the landslide were about 110 million years - thus Tycho crater was assigned that age. However, new mapping and analysis of the area brought forward a second hypotheisis, reported this spring at the 49th Lunar and Planetary Science Conference. The alternative idea is that the landslide was caused by motion along the Lee Lincoln fault. It is certainly logical that seismic shaking along such a massive fault could cause a landslide. In fact, the paper (authored by Apollo 17 astronaut Harrison Schmitt) proposes that there were actually two large quakes and thus two landslides, the younger covering most of the older. The older deposit (smaller lobe on the right) is distinguished by its lower reflectance relative to the brighter younger slide (left side). If Dr. Schmitt is correct then we do not know the age of Tycho crater which in turn has implications for how scientists estimate the ages of other young craters across the Moon (and other inner Solar System bodies).

The mission 
Apollo 17 was the final mission of NASA's Apollo program.
Launched at 12:33 a.m. Eastern Standard Time (EST) on December 7, 1972, with a crew made up of Commander Eugene Cernan, Command Module Pilot Ronald Evans, and Lunar Module Pilot Harrison Schmitt, it was the last use of Apollo hardware for its original purpose; after Apollo 17, extra Apollo spacecraft were used in the Skylab and Apollo–Soyuz programs.
Apollo 17 was the first night launch of a U.S. human spaceflight and the final manned launch of a Saturn V rocket. It was a "J-type mission" which included three days on the lunar surface, extended scientific capability, and the third Lunar Roving Vehicle (LRV). While Evans remained in lunar orbit in the Command/Service Module (CSM), Cernan and Schmitt spent just over three days on the Moon in the Taurus–Littrow valley and completed three moonwalks, taking lunar samples and deploying scientific instruments. Evans took scientific measurements and photographs from orbit using a Scientific Instruments Module mounted in the Service Module.
The landing site was chosen with the primary objectives of Apollo 17 in mind: to sample lunar highland material older than the impact that formed Mare Imbrium, and investigate the possibility of relatively new volcanic activity in the same area.  Cernan, Evans and Schmitt returned to Earth on December 19 after a 12-day mission.
Apollo 17 is the most recent manned Moon landing and the most recent time humans travelled beyond low Earth orbit.  It was also the first mission to have no one on board who had been a test pilot; X-15 test pilot Joe Engle lost the lunar module pilot assignment to Schmitt, a scientist.
The mission broke several records: the longest moon landing, longest total extravehicular activities (moonwalks),  largest lunar sample, and longest time in lunar orbit.
Astronaut Eugene A. Cernan, commander, makes a short checkout of the Lunar Roving Vehicle (LRV) during the early part of the first Apollo 17 Extravehicular Activity (EVA-1) at the Taurus-Littrow landing site.

_______________________________
2019 - Wandering Vertexes...

by Francis Rousseau 

MONS VINOGRADOV BY NASA APOLLO 17 MISSION

NASA APOLLO 17 MISSION ( 1972) 

Mons Vinogradov  (1, 400 m  / 1, 4 km - 4, 593ft / 0,86 mi)

The Moon 

 In Mons Vinogradov seen  from Apollo 17 spaceship during the Moon approach, 1972, Arizona State University, 

Apollo Image Archive

The mountain 
Mons Vinogradov  (1, 400 m  / 1, 4 km - 4, 593ft / 0,86 mi) is a rugged massif that is located on the lunar mare where Oceanus Procellarum to the southwest joins Mare Imbrium to the east. There are three primary peaks in this formation, which rise to altitudes of 1.0–1.4 km above the surface. To the east of this rise is the crater Euler, and to the southeast is an area of rugged ground that reaches the Montes Carpatus range. The Carpatus mountain range forms the southwest boundary of the Mare Imbrium.
The selenographic coordinate of Mons Vinogradov is 22.4 N, 32.4 W, and it has a maximum diameter of 25 km at the base. It was named after Aleksandr P. Vinogradov. This mountain was formerly named Euler Beta (β), or Mons Euler.
In the rugged ground just to the southeast of this mountain is a set of tiny craters that have been assigned names by the IAU. These are listed in the table below.

The mission
Apollo 17 was the final mission of NASA's Apollo program.
Launched at 12:33 a.m. Eastern Standard Time (EST) on December 7, 1972, with a crew made up of Commander Eugene Cernan, Command Module Pilot Ronald Evans, and Lunar Module Pilot Harrison Schmitt, it was the last use of Apollo hardware for its original purpose; after Apollo 17, extra Apollo spacecraft were used in the Skylab and Apollo–Soyuz programs.
Apollo 17 was the first night launch of a U.S. human spaceflight and the final manned launch of a Saturn V rocket. It was a "J-type mission" which included three days on the lunar surface, extended scientific capability, and the third Lunar Roving Vehicle (LRV). While Evans remained in lunar orbit in the Command/Service Module (CSM), Cernan and Schmitt spent just over three days on the Moon in the Taurus–Littrow valley and completed three moonwalks, taking lunar samples and deploying scientific instruments. Evans took scientific measurements and photographs from orbit using a Scientific Instruments Module mounted in the Service Module.
The landing site was chosen with the primary objectives of Apollo 17 in mind: to sample lunar highland material older than the impact that formed Mare Imbrium, and investigate the possibility of relatively new volcanic activity in the same area.  Cernan, Evans and Schmitt returned to Earth on December 19 after a 12-day mission.
Apollo 17 is the most recent manned Moon landing and the most recent time humans travelled beyond low Earth orbit.  It was also the first mission to have no one on board who had been a test pilot; X-15 test pilot Joe Engle lost the lunar module pilot assignment to Schmitt, a scientist. 
The mission broke several records: the longest moon landing, longest total extravehicular activities (moonwalks),  largest lunar sample, and longest time in lunar orbit.
_______________________________
2018 - Wandering Vertexes...
by Francis Rousseau 

MONS HADLEY BY NASA APOLLO 15 MISSION

NASA APOLLO 15 MISSION (July, 26, 1971- August  7, 1971)

Mons Hadley (4,600m -15,091ft) 

The Moon 

 From Apollo 15 Hasselblad image for film magazine 87/KK

The mountain
Mons Hadley (4,600m / 4, 6 km -15,091ft )is  the second highest mountain on the Moon, the first being Mons Huyghens (5, 500m - 18,044ft.  Mons Hadley is a massif in the northern portion of the Montes Apenninus, a range in the northern hemisphere of the Moon. The selenographic coordinates of this peak are  26.5° N, 4.7° E. It has a maximum diameter of 25 km at the base.
To the southwest of this mountain is a valley that served as the landing site for the Apollo 15 expedition. To the southwest of this same valley is the slightly smaller Mons Hadley Delta (δ) peak with a height of about 3.5 km. The coordinates of this peak are 25.8° N, 3.8° E. To the west of these peaks is the sinuous Rima Hadley rille where the Fallen Astronaut memorial has been placed in memory of those astronauts who died in the advancement of space exploration.
These features were named after John Hadley.
This sinuous lunar rille follows a course generally to the northeast, toward the Mons Hadley peak, for which it is named. This feature is centered at selenographic coordinates 25.0° N, 3.0° E, and lies within a diameter of 80 km. It begins at the crater Béla, an elongated formation with the long axis oriented to the northwest.

The mission 
Apollo 15 was the ninth manned mission in the United States' Apollo program, the fourth to land on the Moon, and the eighth successful manned mission. It was the first of what were termed
"J missions", long stays on the Moon, with a greater focus on science than had been possible on previous missions. It was also the first mission on which the Lunar Roving Vehicle was used.
The mission began on July 26, 1971, and ended on August 7. At the time, NASA called it the most successful manned flight ever achieved.
Commander David Scott and Lunar Module Pilot James Irwin spent three days on the Moon, including 18Ѕ hours outside the spacecraft on lunar extra-vehicular activity (EVA). The mission landed near Hadley rille, in an area of the Mare Imbrium called Palus Putredinus (Marsh of Decay). The crew explored the area using the first lunar rover, which allowed them to travel much farther from the Lunar Module (LM) than had been possible on missions without the rover. They collected 77 kilograms (170 lb) of lunar surface material. At the same time, Command Module Pilot Alfred Worden orbited the Moon, using a Scientific Instrument Module (SIM) in the Service Module (SM) to study the lunar surface and environment in great detail with a panoramic camera, a gamma-ray spectrometer, a mapping camera, a laser altimeter, a mass spectrometer, and a lunar sub-satellite deployed at the end of Apollo 15's stay in lunar orbit (an Apollo program first).
The mission successfully accomplished its objectives. Ironically, this mission was one of very few that had been honored with the issue of a commemorative US stamp, with this first use of a lunar rover happening one decade after the first Mercury astronaut launch.

MONS BLANC (ON THE MOON) BY NASA LUNAR ORBITER 4

NASA LUNAR ORBITER 4,  1967

Mons Blanc  (3, 600 to 3,700m/3,6 to3,7km -11, 811 to  12,139 ft/2,24 to 2, 30 mi) 

The Moon

The mountain 

Mons Blanc  (3, 600 to 3,700m/3,6 to3,7km -11, 811 to  12,139 ft/2,24 to 2, 30 mi)  also named Mont Blanc is a mountain on the Moon, part of the Montes Alpes Range. It is located on the western edge of the range, near the shore of Mare Imbrium, at 45.48°N 0.42°E. Its width is about 25 kilometers; the height is 3.7–3.8 km above adjacent plains of Mare Imbrium and 1.12 km above lunar level of zero elevation (a sphere with radius 1737.4 km).

The name of Mons Blanc or Mont Blanc, like the highest mountain of terrestrial Alps, was proposed for this mountain by Johann Hieronymus Schrцter.  It was approved by International Astronomical Union in 1935.  It is the only summit of Montes Alpes with proper name and the only extraterrestrial mountain, whose international name contains French word "Mont" instead of Latin "Mons".

Despite statements that lunar Mont Blanc, like terrestrial one, is a highest mountain of its Alps, measurements of Lunar Reconnaissance Orbiter show that it is only third, being 600 meters lower than the highest one and about 100 m lower than the second.

The mission 

Lunar Orbiter 4 was an unmanned US spacecraft, part of the Lunar Orbiter Program, designed to orbit the Moon, after the three previous orbiters had completed the required needs for Apollo mapping and site selection. It was given a more general objective, to "perform a broad systematic photographic survey of lunar surface features in order to increase the scientific knowledge of their nature, origin, and processes, and to serve as a basis for selecting sites for more detailed scientific study by subsequent orbital and landing missions". It was also equipped to collect selenodetic, radiation intensity, and micrometeoroid impact data. The spacecraft was placed in a cislunar trajectory and injected into an elliptical near polar high lunar orbit for data acquisition. The orbit was 2,706 by 6,111 kilometres (1,681 mi Ч 3,797 mi) with an inclination of 85.5 degrees and a period of 12 hours.

After initial photography on May 11, 1967 problems started occurring with the camera's thermal door, which was not responding well to commands to open and close. Fear that the door could become stuck in the closed position covering the camera lenses led to a decision to leave the door open. This required extra attitude control maneuvers on each orbit to prevent light leakage into the camera which would ruin the film. On May 13 it was discovered that light leakage was damaging some of the film, and the door was tested and partially closed. Some fogging of the lens was then suspected due to condensation resulting from the lower temperatures. Changes in the attitude raised the temperature of the camera and generally eliminated the fogging. Continuing problems with the readout drive mechanism starting and stopping beginning on May 20 resulted in a decision to terminate the photographic portion of the mission on May 26. Despite problems with the readout drive the entire film was read and transmitted. The spacecraft acquired photographic data from May 11 to 26, 1967, and readout occurred through June 1, 1967. The orbit was then lowered to gather orbital data for the upcoming Lunar Orbiter 5 mission.

A total of 419 high-resolution and 127 medium-resolution frames were acquired, covering 99% of the Moon's near side at resolutions from 58 to 134 metres (190 to 440 ft). Accurate data was acquired from all other experiments throughout the mission. Radiation data showed increased dosages due to solar particle events producing low energy protons. The spacecraft was used for tracking until it struck the lunar surface due to the natural decay of the orbit no later than October 31, 1967, between 22–30 degrees W longitude.

MONS PICO BY JAMES NASMYTH

JAMES NASMYTH  (1808-1890) 

Mons Pico (2,450m - 8,038ft)

The Moon 

1 In Pico as seen by a spectator in the moon, early photography, circa 1860 by James Nasmyth

2.  In Mons Pico (left) and Mons Pico Beta (right), Mare Imbrium, 1971, 

NASA APOLLO 15 MISSION (July, 26, 1971- August  7, 1971)

The mountain 

Mons Pico  (2,450m - 8,038ft)  is a solitary lunar mountain that lies in the northern part of the Mare Imbrium basin, to the south of the dark-floored crater Plato and on the southern rim of a ghost crater.  This peak forms part of the surviving inner ring of the Imbrium basin, continuing to the northwest and with the Montes Teneriffe and Montes Recti ranges, and probably to the southeast with the Montes Spitzbergen. This mountain feature was most likely named by Schröter for the Pico von Teneriffe (Teide). The selenographic coordinates of this peak are 45.7° N, 8.9° W. It forms an elongated feature with a length of 25 kilometers (oriented northwest-southeast) and a width of 15 km. The mountain itself is a very reflective and bright object. The exact elevation of the mountain was recently measured by the Lunar Reconnaissance Orbiter on October 1, 2016.

Due to its isolated location on the lunar mare, however, this peak can form prominent shadows when illuminated by oblique sunlight. It is also known as a location of Transient Lunar Anomalies. A smaller peak to the southeast of Mons Pico is sometimes called Mons Pico β (Beta), although this does not appear to be recognized by the IAU. This region of the mare is notable for a number of wrinkle ridges.

The artist 

James Hall Nasmyth (sometimes spelled Naesmyth, Nasmith, or Nesmyth) was a Scottish engineer, artist and inventor famous for his development of the steam hammer. He was the co-founder of Nasmyth, Gaskell and Company manufacturers of machine tools. He retired at the age of 48, and moved to Penshurst, Kent where he developed his hobbies of astronomy and photography.

Nasmyth retired from business in 1856  as he said "I have now enough of this world's goods: let younger men have their chance".  He renamed his retirement home "Hammerfield" and happily pursued his various hobbies. He built his own 20-inch reflecting telescope, in the process inventing the Nasmyth focus, and made detailed observations of the Moon. He co-wrote The Moon : Considered as a Planet, a World, and a Satellite with James Carpenter (1840–1899). This book contains an interesting series of "lunar" photographs: because photography was not yet advanced enough to take actual pictures of the Moon, Nasmyth built plaster models based on his visual observations of the Moon and then photographed the models. A crater on the Moon is named after him. In memory of his renowned contribution to the discipline of mechanical engineering, the Department of Mechanical Engineering building at Heriot-Watt University, in his birthplace of Edinburgh, is called the James Nasmyth Building.

The mission 

NASA APOLLO 15 MISSION (July, 26, 1971- August  7, 1971)

Apollo 15 was the ninth manned mission in the United States' Apollo program, the fourth to land on the Moon, and the eighth successful manned mission. It was the first of what were termed 

"J missions", long stays on the Moon, with a greater focus on science than had been possible on previous missions. It was also the first mission on which the Lunar Roving Vehicle was used.

The mission began on July 26, 1971, and ended on August 7. At the time, NASA called it the most successful manned flight ever achieved.

Commander David Scott and Lunar Module Pilot James Irwin spent three days on the Moon, including 18Ѕ hours outside the spacecraft on lunar extra-vehicular activity (EVA). The mission landed near Hadley rille, in an area of the Mare Imbrium called Palus Putredinus (Marsh of Decay). The crew explored the area using the first lunar rover, which allowed them to travel much farther from the Lunar Module (LM) than had been possible on missions without the rover. They collected 77 kilograms (170 lb) of lunar surface material. At the same time, Command Module Pilot Alfred Worden orbited the Moon, using a Scientific Instrument Module (SIM) in the Service Module (SM) to study the lunar surface and environment in great detail with a panoramic camera, a gamma-ray spectrometer, a mapping camera, a laser altimeter, a mass spectrometer, and a lunar sub-satellite deployed at the end of Apollo 15's stay in lunar orbit (an Apollo program first).

The mission successfully accomplished its objectives. Ironically, this mission was one of very few that had been honored with the issue of a commemorative US stamp, with this first use of a lunar rover happening one decade after the first Mercury astronaut launch.

COMPTON PEAK BY NASA LUNAR RECONNAISSANCE ORBITER

NASA LUNAR RECONNAISSANCE ORBITER (August 6 -18, 1967 - August 27, 1967) 

Compton Peak (0 - No elevation data)

Northern Hemisphere - Far side

The Moon    

1. In The Earth (Africa, Europe, Atlantic Ocean) seen from Compton Peak, Photo, August 1967 

2. In Compton Crater and its central peak, Photo, August 1967

3. In Compton crater and peak seen from Apollo 16 NASA mission, Photo, April 1972

The  crater and it peak  
Compton is a prominent lunar crater with a central peak (heigh unknown)  that is located in the northern hemisphere on the far side of the Moon. It lies to the east of the Mare Humboldtianum, and southwest of the walled plain Schwarzschild. To the southeast of Compton is the heavily eroded crater Swann. This formation is roughly circular, with a wide, irregular outer rim that varies considerably in width. Parts of the inner wall have terraced steps that form wide shelves along the edge. Within the wall is a floor that has been resurfaced by lava flows some time in the past. This surface has a lower albedo than the surroundings, giving it a slightly darker hue.
At the midpoint of the floor is a formation of mounts that comprise the central peak. This peak is surrounded by a semi-circular ring of hills that lie in the western half of the crater at a radius about half that of the inner edge of the rim. These mounts form jagged rises through the lava-covered surface and lie at irregular intervals from each other.
The interior also contains a set of slender rilles within the ring of hills, primarily in the northwest part of the crater floor. Apart from a small, bowl-shaped craterlet near the eastern rim, the floor only contains a few tiny craterlets.
Source:
NASA, Lunar Nomenclature

The Imager
 Lunar Orbiter 5, the last of the Lunar Orbiter series, was designed to take additional Apollo and Surveyor landing site photography and to take broad survey images of unphotographed parts of the Moon's far side. It was also equipped to collect selenodetic, radiation intensity, and micrometeoroid impact data and was used to evaluate the Manned Space Flight Network tracking stations and Apollo Orbit Determination Program. The spacecraft was placed in a cislunar trajectory and on August 5, 1967 was injected into an elliptical near polar lunar orbit 194.5 by 6,023 kilometres (120.9 mi × 3,742.5 mi) with an inclination of 85 degrees and a period of 8 hours 30 minutes. On August 7 the perilune was lowered to 100 kilometers (62 mi), and on August 9 the orbit was lowered to a 99-by-1,499-kilometre (62 mi × 931 mi), 3 hour 11 minute period.
The spacecraft acquired photographic data from August 6 to 18, 1967, and readout occurred until August 27, 1967. A total of 633 high resolution and 211 medium resolution frames at resolution down to 2 metres (6 ft 7 in) were acquired, bringing the cumulative photographic coverage by the five Lunar Orbiter craft to 99% of the Moon's surface. Accurate data were acquired from all other experiments throughout the mission. The spacecraft was tracked until it struck the lunar surface on command at 2.79 degrees S latitude, 83 degrees W longitude (selenographic coordinates) on January 31, 1968.

TYCHO PEAK BY NASA LUNAR RECONNAISSANCE ORBITER

NASA LUNAR RECONNAISSANCE ORBITER (since 2009)

Tycho Peak  (2,000m or 2 km - 1, 24miles)

The Moon 

© NASA/GSFC/Arizona State University

 © Goddard Space Flight Center / Arizona State University

The peak 
A very popular target with amateur astronomers, Tycho is located at 43.37°S, 348.68°E, and is about 51 miles (82 km) in diameter. The summit of the central peak is 1.24 miles (2 km) above the crater floor (images 1& 2). The distance from Tycho's floor to its rim is about 2.92 miles (4.7 km).
Tycho crater's central peak complex (image 3) is about 9.3 miles (15 km) wide.
Many rock fragments ("clasts") ranging in size from some 33 feet (10 m) to hundreds of yards are exposed in the central peak slopes. Were these distinctive outcrops formed as a result of crushing and deformation of the target rock as the peak grew? Or do they represent preexisting rock layers that were brought intact to the surface?
Tycho's features are so steep and sharp because the crater is only about 110 million years old -- young by lunar standards. Over time micrometeorites and not-so-micro meteorites, will grind and erode these steep slopes into smooth mountains. For a preview of Tycho's central peak may appear like in a few billion years, look at Bhabha crater.
On May 27, 2010, LRO captured a top-down view of the summit (above), including the large boulder seen in the image. Also note the fractured impact melt deposit that surrounds the boulder. And the smooth area on top of the boulder, is that also frozen impact melt? These images from the LRO Camera clearly show that the central peak formed very quickly: the peak was there when impact melt that was thrown straight up during the impact came back down, creating mountains almost instantaneously. Or did the melt get there by a different mechanism? The fractures probably formed over time as the steep walls of the central peak slowly eroded and slipped downhill. Eventually the peak will erode back, and this massive boulder will slide 1.24 miles (2 km) to the crater
On June 10, 2011, NASA's Lunar Reconnaissance Orbiter spacecraft angled its orbit 65° to the west, allowing the LRO Camera NACs to capture a dramatic sunrise view of Tycho crater.
Source: 
- NASA missions official website/ Tycho peak 

The Imager 
The Lunar Reconnaissance Orbiter (LRO) is a NASA robotic spacecraft currently orbiting the Moon since 2009 in an eccentric polar mapping orbit. Data collected by LRO has been described as essential for planning NASA's future human and robotic missions to the Moon. Its detailed mapping program is identifying safe landing sites, locating potential resources on the Moon, characterizing the radiation environment, and demonstrating new technologies.
Launched on June 18, 2009, in conjunction with the Lunar Crater Observation and Sensing Satellite (LCROSS), as the vanguard of NASA's Lunar Precursor Robotic Program, LRO was the first United States mission to the Moon in over ten years. LRO and LCROSS were launched as part of the United States's Vision for Space Exploration program.
The probe has made a 3-D map of the Moon's surface at 100-meter resolution and 98.2% coverage (excluding polar areas in deep shadow), including 0.5-meter resolution images of Apollo landing sites.
The first images from LRO were published on July 2, 2009, showing a region in the lunar highlands south of Mare Nubium (Sea of Clouds).
The total cost of the mission is reported as US$583 million, of which $504 million pertains to the main LRO probe and $79 million to the LCROSS satellite.
Source: 
- NASA missions official website

MONS HADLEY SEEN BY NASA APOLLO 15 MISSION

NASA APOLLO 15 MISSION (July, 26, 1971- August  7, 1971)

Mons Hadley (4,600m -15,091ft) 

The Moon 

1.  Jim Irwin, the Lunar Rover from Apollo 15 and Mons Hadley in the background 

2. Mons Hadley photographed from Apollo 15 before landing July 30, 1971, 22:16:29

3. Mons Hadley ©The Lunar Institute Map. 

The mountain

Mons Hadley (4,600m -15,091ft ) is  the second highest mountain on the Moon, the first being Mons Huyghens (5, 500m - 18,044ft.  Mons Hadley is a massif in the northern portion of the Montes Apenninus, a range in the northern hemisphere of the Moon. The selenographic coordinates of this peak are  26.5° N, 4.7° E. It has a maximum diameter of 25 km at the base.

To the southwest of this mountain is a valley that served as the landing site for the Apollo 15 expedition. To the southwest of this same valley is the slightly smaller Mons Hadley Delta (δ) peak with a height of about 3.5 km. The coordinates of this peak are 25.8° N, 3.8° E. To the west of these peaks is the sinuous Rima Hadley rille where the Fallen Astronaut memorial has been placed in memory of those astronauts who died in the advancement of space exploration.

These features were named after John Hadley.

This sinuous lunar rille follows a course generally to the northeast, toward the Mons Hadley peak, for which it is named. This feature is centered at selenographic coordinates 25.0° N, 3.0° E, and lies within a diameter of 80 km. It begins at the crater Béla, an elongated formation with the long axis oriented to the northwest.  

Sources: 

- Lunar and Planetary Institute

The mission 

Apollo 15 was the ninth manned mission in the United States' Apollo program, the fourth to land on the Moon, and the eighth successful manned mission. It was the first of what were termed 

"J missions", long stays on the Moon, with a greater focus on science than had been possible on previous missions. It was also the first mission on which the Lunar Roving Vehicle was used.

The mission began on July 26, 1971, and ended on August 7. At the time, NASA called it the most successful manned flight ever achieved.

Commander David Scott and Lunar Module Pilot James Irwin spent three days on the Moon, including 18Ѕ hours outside the spacecraft on lunar extra-vehicular activity (EVA). The mission landed near Hadley rille, in an area of the Mare Imbrium called Palus Putredinus (Marsh of Decay). The crew explored the area using the first lunar rover, which allowed them to travel much farther from the Lunar Module (LM) than had been possible on missions without the rover. They collected 77 kilograms (170 lb) of lunar surface material. At the same time, Command Module Pilot Alfred Worden orbited the Moon, using a Scientific Instrument Module (SIM) in the Service Module (SM) to study the lunar surface and environment in great detail with a panoramic camera, a gamma-ray spectrometer, a mapping camera, a laser altimeter, a mass spectrometer, and a lunar sub-satellite deployed at the end of Apollo 15's stay in lunar orbit (an Apollo program first).

The mission successfully accomplished its objectives. Ironically, this mission was one of very few that had been honored with the issue of a commemorative US stamp, with this first use of a lunar rover happening one decade after the first Mercury astronaut launch.

Sources:

- Apollo 15 on Encyclopedia Astronautica