Rambler's Top100Astronet    
  po tekstam   po klyuchevym slovam   v glossarii   po saitam   perevod   po katalogu
 

Marvelous Marius Rille
<< Yesterday 29.02.2004 Tomorrow >>
Marvelous Marius Rille
Credit: Thierry Legault
Explanation:

Sinuous rilles have led some lunar scientists astray. The curving outlines led to proposals that such rilles were meandering water streams, although by shape alone a giant worm might have been equally defensible! But the Moon's lack of water and life eliminate those origins. Sinuous rilles do resemble - and probably are - lava channels, made by lava flowing downhill from a source vent. The Apollo 15 visit to the Hadley Rille supported that interpretation. So it is not surprising to find the wonderful Marius Rille at the north end of the volcanic Marius Hills complex. What is surprising is that such an excellent image of the rille was taken with a 12" telescope! Legault's image shows the 2 km wide rille starting northwest of the crater Marius C without any obvious vent and running about 250 km (according to Rukl's Atlas of the Moon). It takes a turn to the left near Marius B, and at Marius P narrows to about 1 km width. Look northeast of Marius P to see a much thinner rille that is barely visible on Lunar Orbiter IV images. This image also reveals a central peak in the 11.4 km wide Marius C and some sort of off-center hill in Marius B (11.6 km). Only a few impact craters this size have central peaks - the transition to complex craters begins in craters with diameters of about 15 km. Move the mouse over the image to see crater designations.

Technical Details:
305 mm Meade Schmidt-Cassegrain and Philips Vesta Pro webcam

Related Links:
High resolution CCD imaging
Lunar Orbiter IV view
Water Exploration in the Marius Hills

<<  Fevral'  >>
Pn Vt Sr Cht Pt Sb Vs
            1
2 3 4 5 6 7 8
9 10 11 12 13 14 15
16 17 18 19 20 21 22
23 24 25 26 27 28 29
2004   2005  
Yanvar'
Fevral'
Mart
Aprel'
Mai
Iyun'
Iyul'
Avgust
Sentyabr'
Oktyabr'
Noyabr'
Dekabr'

Publikacii s klyuchevymi slovami: Moon - Luna - Lunar Photo of the Day - LPOD
Publikacii so slovami: Moon - Luna - Lunar Photo of the Day - LPOD
Sm. takzhe:
Vse publikacii na tu zhe temu >>

Ocenka: 1.7 [golosov: 6]
 
O reitinge
Versiya dlya pechati Raspechatat'

Astronet | Nauchnaya set' | GAISh MGU | Poisk po MGU | O proekte | Avtoram

Kommentarii, voprosy? Pishite: info@astronet.ru ili syuda

Rambler's Top100 Yandeks citirovaniya