SMART-1: the Moon from ESA |
 |
| TITOLO |
+ |
- |
| NOME FILE |
+ |
- |
| DATA |
+ |
- |
| POSIZIONE |
+ |
- |
|
|
Craters and Highlands37 vistenessun commento
|
|
Lunar Horizon46 vistenessun commento
|
|
The Lunar North Pole (1)48 visteUna bellissima coppia di immagini ad Alta Risoluzione dell'area Nord Polare della Luna, alla ricerca - ancora una volta - dei "Picchi della Luce Eterna" (anche se poi, come già avemmo occasione di dire in passato) si dovrebbe trattare non di picchi (nel senso di porzioni superiori di montagne appuntite), bensì di altopiani.
Comunque sia, queste Regioni della "Luce Eterna" esistono, sappiamo dove sono e, forse, costituiranno davvero un punto di partenza verso la costituzione di un avamposto Lunare permanente.
Staremo a vedere...
|
|
The Lunar North Pole (2)61 visteCaption ESA originale:"(...) This picture is valuable as it shows illumination conditions at the Region. It is important to understand global illumination conditions to help in planning the location of future landing sites and, later, possible bases on the Moon".
|
|
Lunar Flash! (detail mgnf)56 vistenessun commento
|
|
Impact Time (the sequence)!56 visteCaption ESA originale:"This impressive sequence of SMART-1 impact images was captured by the 3,6-meter optical/infrared Canada-France-Hawaii Telescope (CFHT), Hawaii, 3 September 2006.
The CFHT observed the projected impact area between 07:00 - 08:44 CEST (05:00 06:44 UT). The impact flash lasted only about 1 millisecond. It may have been caused by the thermal emission from the impact itself or by the release of spacecraft volatiles, such as the small amount of hydrazine fuel remaining on board".
|
|
The "Impact Location" (1)66 vistenessun commento
|
|
The "Impact Location" (2)52 visteCaption ESA originale:"The blue star indicates the approximate impact site assuming that the coordinate system used to produce the reference Clementine Base Mosaic is correct. The yellow star indicates the approximate impact site using USGS's lunar control network revised with respect to the Clementine Base Mosaic. The distance separating the blue and yellow stars is about 7 Km.
In this image North is up".
|
|
The Impact Sequence39 visteCaption ESA originale:"Analysis of images obtained at the CFHT by Christian Veillet have revealed a plume of debris thrown up when SMART-1 impacted the Lunar Surface.
The observations were made with the WIRCam wide-field infrared camera with 10s exposure time through an H2 narrow-band filter at 2122 nanometers with a 32 nanometers bandwidth.
Each image is approximately 2'x 2', equating to 200x200 Km".
|
|
Schakleton Crater in natural colors36 visteThe Advanced Moon Imaging Experiment Camera (AMIE) obtained this image on 13 January 2006 - close to the time of Lunar Southern Summer - from a distance of about 646 Km over the surface and with a ground resolution of 60 mt per pixel.
Shackleton crater lies at the Lunar South Pole (89,54° S. Lat. and 0° East Lng.) and has a diameter of approx. 19 Km.
SMART-1 monitored this area almost every orbit. This will allow to produce very high resolution maps of the area as well as illumination maps. The long shadows that surround the crater make it very hard to observe. The analysis of the data obtained allowed a very detailed map of its rim, surrounding ejectas and craters.
SMART-1 also made long repeated exposures to see inside the shadowed areas. The purpose was detecting the very weak reflected light from the crater rims, and therefore study the surface reflection properties (albedo) and its spectral variations (mineralogical composition). These properties could reveal patchy ice surface layers inside the crater.
On the 2-kilometre wide inner edge of the crater ridge, at times barely visible from Earth, astronomers using ground radio-telescopes have recently reported they were not able to detect a distinctive signature of thick deposits of ice in the area. Earlier measurements by NASA's Lunar Prospector reported of hydrogen enhancement over large shadowed areas.
"We still do not know if this hydrogen is due to enhanced trapping of solar wind, or to the water ice brought on the Moon by the bombardment of comets and asteroids," says Bernard Foing, ESA's SMART-1 Project Scientist. "These bodies may have deposited on the Moon patchy layers of ice filling about 1.5 percent of the areas in permanent shadow, down to one metre below the surface."
"We need to analyse all remote sensing data sets consistently. Future lander and rover missions to the Moon will help in the search and characterisation of lunar polar ice, both on the surface and below the subsurface," Foing continues. "In any case, one day we may even be able to simply combine the implanted hydrogen and the oxygen extracted from lunar rocks to produce clean water, like we do in laboratory experiments on Earth.”
The crater is named after Ernest Shackleton (1874-1922), an explorer famous for his Antartic expeditions.
|
|
Oresme Crater (possible natural colors - elab. Lunexit)22 vistenessun commento
|
|
In the vicinities of Crater Pentland (HR)15 visteCaption ESA:"This HR image, taken by the Advanced Moon Imaging Experiment (AMIE) on board ESA’s SMART-1 spacecraft, shows an area close to crater Pentland on the Moon.
AMIE obtained this sequence on 18 March 2006 from a distance of 573 Km from the surface, with a ground resolution of 52 mt per pixel. The imaged area is centred at a Latitude of 67,7º South and a Longitude of 18,3º East".
|
|
| 76 files su 7 pagina(e) |
|
|
|
|
|
|
6 | |
|
