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Wednesday, July 5, 2023

IRESON HILL / MARS PHOTOGRAPHIÉE PAR NASA MARS CURIOSITY MISSION

 

NASA CURIOSITY MISSION (since 2012) Ireson Hill sur Aeolis Mons/Mount Sharp (5, 500 m - 18, 000 ft) MARS

NASA MARS CURIOSITY MISSION (depuis 2012)
Ireson Hill sur Aeolis Mons/Mount Sharp (5, 500 m - 18, 000 ft)
MARS

La colline
Ce monticule sombre, appelé "Ireson Hill", s'élève à environ 5 mètres au-dessus du matériau d'affleurement en couches plus rouge de la formation Murray sur le mont Sharp inférieur (5, 500 mètres d'altitude), sur  la planète Mars, près d'un endroit où le rover Curiosity de la NASA a examiné une dune de sable linéaire en février 2017.  Qu'est-ce qui a créé cette colline inhabituelle sur Mars ? Pas de réponse pour l'instant mais un sujet de recherche  pour plusieurs années tant il est vrai que sa forme et sa structure bicolore en font l'une des formations les plus inhabituelles que le robot Curiosity ait croisé dans son exploration de la planète. Surnommé  "Colline Ireson", le monticule s'étend sur environ 15 mètres de largeur. Ce panorama composé de 41 images a été compressé horizontalement pour inclure toute la colline. L'image a été prise le 2 février 2017.

La camera
Les chercheurs ont utilisé la Mast Camera (Mastcam) du rover le 2 février 2017, lors du 1 598e jour martien, ou sol, des travaux de Curiosity sur Mars, pour prendre les 41 images combinées dans cette scène. La mosaïque a été équilibrée en blanc afin que les couleurs des matériaux de roche et de sable ressemblent à ce qu'elles apparaîtraient dans des conditions d'éclairage diurne sur Terre. La vue s'étend de l'ouest-sud-ouest à gauche au nord-nord-ouest à droite. Le faible horizon au loin au-delà d'Ireson Hill fait partie du bord du cratère Gale. Malin Space Science Systems, San Diego, a construit et exploite le Mastcam. Le Jet Propulsion Laboratory de la NASA, une division de Caltech à Pasadena, en Californie, gère le projet de laboratoire scientifique sur Mars pour la direction des missions scientifiques de la NASA, à Washington. JPL a conçu et construit le rover Curiosity du projet.


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2023 - Wandering Vertexes ....
Errant au-dessus des Sommets Silencieux...
Un blog de Francis Rousseau

Friday, March 24, 2023

APOLLINARIS MONS PHOTOGRAPHIÉ PAR NASA MARS GLOBAL SURVEYOR

 

NASA MARS GLOBAL SURVEYOR (1996-2007) Apollinaris Mons (5,500m) MARS


NASA MARS GLOBAL SURVEYOR (1996-2007)
Apollinaris Mons (5,500m)
MARS


Le volcan
Apollinaris Mons (5500 mètres), parfois appelé Apollinaris Patera bien que ce nom ne se réfère stricto sensu qu'à sa caldeira sommitale, est un volcan situé sur la planète Mars par 9,3° S et 174,4° E dans le quadrangle d'Aeolis (MC-23), à la frontière géologique matérialisant la dichotomie crustale martienne. Large de 295 km, il culmine à un peu plus de 3 000 m d'altitude au-dessus du niveau de référence martien et d'environ 5 500 m au-dessus d'Elysium Planitia. Ce volcan possède une caldeira à deux niveaux d'environ 85 km de diamètre et de l'ordre de 1 500 m de profondeur. 'est un volcan très ancien, formé au Noachien il y a au moins 3,8 milliards d'années — peut-être même 4 milliards d'années — et dont l'activité ne s'est pas prolongée au-delà du début de l'Hespérien, cessant au plus tard il y a 3,6 milliards d'années.
Il semble s'agir d'un stratovolcan dont la très vaste caldeira résulterait d'une éruption plinienne.


La photographie
En avril 1999, la caméra Mars Global Surveyor Mars Orbiter Camera (MOC) est passée au-dessus du volcan Apollinaris Patera et a capturé une nappe de nuages lumineux suspendus au-dessus de son sommet au début de l'après-midi martien. Cet ancien volcan est situé près de l'équateur et, d'après les observations des orbiteurs vikings des années 1970, on pense qu'il mesure jusqu'à 5 kilomètres (3 miles) de haut. La couleur de cette image est dérivée des systèmes de caméra grand angle rouge et bleu MOC et ne représente pas la vraie couleur telle qu'elle apparaîtrait à l'œil humain (c'est-à-dire si un humain était en mesure d'orbiter autour de la planète rouge) . L'éclairage vient du coin supérieur gauche.
Malin Space Science Systems et le California Institute of Technology ont construit le MOC en utilisant du matériel de rechange de la mission Mars Observer. MSSS exploite la caméra depuis ses installations de San Diego, en Californie. Le projet Mars Surveyor Operations du Jet Propulsion Laboratory exploite le vaisseau spatial Mars Global Surveyor avec son partenaire industriel, Lockheed Martin Astronautics, à partir d'installations à Pasadena, CA et Denver, CO. 

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2023 - Wandering Vertexes ....
Errant au-dessus des Sommets Silencieux...
Un blog de Francis Rousseau 

Tuesday, February 8, 2022

AEOLIS MONS OR MOUNT SHARP BY NASA CURIOSITY MISSION

 

NASA CURIOSITY MISSION (since 2012) Aeolis Mons or Mount Sharp (5, 500 m - 18, 000 ft) Mars  In at the base of Aeolis Mons on Mars (23 August 2012)

NASA CURIOSITY MISSION (since 2012)
Aeolis Mons or Mount Sharp (5, 500 m - 18, 000 ft)
Mars

From "At the base of Aeolis Mons on Mars ", photo, 23 August 2012


The mountain
Aeolis Mons (5, 500 m - 18, 000 ft) also called Mount Sharp is a mountain on the surface of the planet Mars. It forms the central peak within Gale crater and is located around 5.08°S 137.85°E, rising 5.5 km (18,000 ft) high from the valley floor. Aeolis Mons is about the same height as Mons Huygens, the tallest lunar mountain, and taller than Mons Hadley visited by Apollo 15. The tallest mountain known in the Solar System is in Rheasilvia crater on the asteroid Vesta, which contains a central mound that rises 22 km or 22.000 m - 14 mi or 72,000 ft high.
Olympus Mons on Mars is nearly the same height, at 21.9 km (13.6 mi; 72,000 ft) high.
In comparison, Mount Everest / Chomolunga rises to 8.8 km -29,000 ft altitude above sea level, but is only 4.6 km - 15,000 ft base-to-peak. Africa's Mount Kilimanjaro is about 5.9 km - 19,000 ft altitude above sea level also 4.6 km base-to-peak. America's Denali, also known as Mount McKinley, has a base-to-peak of 5.5 km -18,000 ft. The Franco-Italian Mont Blanc/Monte Bianco is 4.8 km -16,000 ft in altitude above sea level. Mount Fuji, which overlooks Tokyo, Japan, is about 3.8 km -12,000 ft altitude. Compared to the Andes, Aeolis Mons would rank outside the hundred tallest peaks, being roughly the same height as Argentina's Cerro Pajonal; the peak is higher than any above sea level in Oceania, but base-to peak it is considerably shorter than Hawaii's Mauna Kea and its neighbors.
Discovered in the 1970s by NAS, the mountain remained nameless for perhaps 40 years. When it became a likely landing site, it was given various labels; for example, in 2010 a NASA photo caption called it "Gale crater mound". In March 2012, NASA unofficially named it "Mount Sharp", for American geologist Robert P. Sharp. The International Astronomical Union, which is responsible for planetary nomenclature for its participants, names large Martian mountains after the Classical albedo feature in which it is located, not for people. In May 2012 the IAU thus named the mountain Aeolis Mons, and gave the name Aeolis Palus to the crater floor plain between the northern wall of Gale and the northern foothills of the mountain. Despite the official name, NASA and the ESA continue to refer to the mountain as "Mount Sharp" in press conferences and press releases
Aeolis is the ancient name of the Izmir region in western Turkey.

The NASA mission
On August 6, 2012, Curiosity (the Mars Science Laboratory rover) landed in "Yellowknife" Quad of Aeolis Palus, next to the mountain. NASA named the landing site Bradbury Landing on August 22, 2012. Aeolis Mons is a primary goal for scientific study.
On June 5, 2013, NASA announced that Curiosity would begin a 8 km (5.0 mi) journey from the Glenelg area to the base of Aeolis Mons.
On November 13, 2013, NASA announced that an entryway Curiosity would traverse on its way to Aeolis Mons was to be named "Murray Buttes", in honor of planetary scientist Bruce C. Murray (1931–2013). The trip was expected to take about a year and would include stops along the way to study the local terrain.
On September 11, 2014, NASA announced that the Curiosity rover had reached Aeolis Mons, the rover mission's long-term prime destination.
On October 5, 2015, possible recurrent slope lineae, wet brine flows, were reported on Mount Sharp near Curiosity.
As of January 20, 2017, Curiosity has been on the planet Mars for 1585 sols (1628 days) since landing on August 6, 2012. 

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2022 - Wandering Vertexes...
by Francis Rousseau


Friday, January 27, 2017

AEOLIS MONS BY NASA CURIOSITY MISSION





NASA CURIOSITY MISSION (since 2012)
Aeolis Mons or Mount Sharp (5, 500 m - 18, 000 ft)
Mars  

3 pictures of Aeolis Mons taken by NASA Curiosity Rover & Curiosity team : 
1. Aeolis Mons photographed by  Curiosity Rover on September 9, 2012
2. Aeolis Mons photographed by Curiosity Rover on September 20, 2012
3.  Aeolis Mons photographed  by Curiosity Rover on August 6, 2012

(Click images to enlarge)  

The mountain
Aeolis Mons (5, 500 m - 18, 000 ft) also called Mount Sharp is a mountain on the surface of the planet Mars. It forms the central peak within Gale crater and is located around 5.08°S 137.85°E, rising 5.5 km (18,000 ft) high from the valley floor. Aeolis Mons is about the same height as Mons Huygens, the tallest lunar mountain, and taller than Mons Hadley visited by Apollo 15. The tallest mountain known in the Solar System is in Rheasilvia crater on the asteroid Vesta, which contains a central mound that rises 22 km  or 22.000 m - 14 mi or 72,000 ft high.
Olympus Mons on Mars is nearly the same height, at 21.9 km (13.6 mi; 72,000 ft) high.
In comparison, Mount Everest / Chomolunga rises to 8.8 km -29,000 ft altitude above sea level, but is only 4.6 km - 15,000 ft  base-to-peak. Africa's Mount Kilimanjaro is about 5.9 km - 19,000 ft altitude above sea level  also 4.6 km base-to-peak. America's Denali, also known as Mount McKinley, has a base-to-peak of 5.5 km -18,000 ft.  The Franco-Italian Mont Blanc/Monte Bianco is 4.8 km -16,000 ft in altitude above sea level.  Mount Fuji, which overlooks Tokyo, Japan, is about 3.8 km -12,000 ft altitude. Compared to the Andes, Aeolis Mons would rank outside the hundred tallest peaks, being roughly the same height as Argentina's Cerro Pajonal; the peak is higher than any above sea level in Oceania, but base-to peak it is considerably shorter than Hawaii's Mauna Kea and its neighbors.
Discovered in the 1970s by NAS,  the mountain remained nameless for perhaps 40 years. When it became a likely landing site, it was given various labels; for example, in 2010 a NASA photo caption called it "Gale crater mound".  In March 2012, NASA unofficially named it "Mount Sharp", for American geologist Robert P. Sharp. The International Astronomical Union, which is responsible for planetary nomenclature for its participants, names large Martian mountains after the Classical albedo feature in which it is located, not for people. In May 2012 the IAU thus named the mountain Aeolis Mons, and gave the name Aeolis Palus to the crater floor plain between the northern wall of Gale and the northern foothills of the mountain. Despite the official name, NASA and the ESA continue to refer to the mountain as "Mount Sharp" in press conferences and press releases
Aeolis is the ancient name of the Izmir region in western Turkey.

The NASA mission 
On August 6, 2012, Curiosity (the Mars Science Laboratory rover) landed in "Yellowknife" Quad of Aeolis Palus, next to the mountain. NASA named the landing site Bradbury Landing on August 22, 2012. Aeolis Mons is a primary goal for scientific study.
 On June 5, 2013, NASA announced that Curiosity would begin a 8 km (5.0 mi) journey from the Glenelg area to the base of Aeolis Mons.
On November 13, 2013, NASA announced that an entryway Curiosity would traverse on its way to Aeolis Mons was to be named "Murray Buttes", in honor of planetary scientist Bruce C. Murray (1931–2013). The trip was expected to take about a year and would include stops along the way to study the local terrain.
On September 11, 2014, NASA announced that the Curiosity rover had reached Aeolis Mons, the rover mission's long-term prime destination.
On October 5, 2015, possible recurrent slope lineae, wet brine flows, were reported on Mount Sharp near Curiosity.
As of January 20, 2017, Curiosity has been on the planet Mars for 1585 sols (1628 days) since landing on August 6, 2012. 
Sources: