Mercury Science |
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Mercury Science |
 Feb 3 2011, 03:44 PM
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#31
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Senior Member  Group: Members Posts: 1008 Joined: 29-November 05 From: Seattle, WA, USA Member No.: 590  |
Quite easily. Mercury at Aphelion should be about 39 kps. Mariner X was 55 kps. Your probe would be 58 kps.
As before, someone should double-check this before you reply on it to actually launch something. :-) I used this formula from Wikipedia http://en.wikipedia.org/wiki/Orbital_mechanics#Velocity --Greg |
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Feb 3 2011, 04:12 PM
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#32
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 Member Group: Members Posts: 881 Joined: 30-January 05 Member No.: 162 |
Wow.
That is getting right up there. Appreciate the calculations. Gives a vivid idea of the challenges in navigating that region of the solar system. All those sharp, unblurred Mariner 10 pictures are quite an achievement, considering the flyby speed. (I am not likely to be sending any of my own spacecraft on this trajectory, the Legos would melt) |
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Jul 21 2011, 09:15 PM
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#33
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Senior Member Group: Members Posts: 4586 Joined: 5-April 05 From: Canada Member No.: 227 |
Not much action on here, but every workday there's a new image from MESSENGER. Here I have joined two nice color images of the Tolstoj area.
Phil
-------------------- ... because the Solar System ain't gonna map itself.
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Jul 21 2011, 09:46 PM
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#34
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 Senior Member Group: Members Posts: 1146 Joined: 12-February 06 From: Marseille - FR Member No.: 678 |
Wow ! It looks like a deep field with many galaxies, nebulas and stars. Magnificent !
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Jul 22 2011, 09:27 AM
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#35
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 Member Group: Members Posts: 135 Joined: 23-August 06 From: Vriezenveen, Netherlands Member No.: 1067 |
Reminds me of Callisto
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Jul 28 2011, 05:03 AM
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#36
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 Member Group: Members Posts: 623 Joined: 13-February 10 From: Vancouver, British Columbia Member No.: 5221 |
-------------------- To a body of infinite size there can be ascribed neither centre nor boundary... Thus the Earth no more than any other world is at the centre. -Giordano Bruno, 1584.
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Jul 28 2011, 06:02 AM
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#37
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 Member Group: Members Posts: 521 Joined: 20-April 05 From: Poland Member No.: 299 |
QUOTE (Explorer1 @ Jul 28 2011, 05:03 AM)  First burn in orbit around Mercury (ever!) Second. First burn Messenger successfully completed June 15, 2011 http://messenger.jhuapl.edu/news_room/details.php?id=173 -------------------- Free software for planetary science (including Cassini Image Viewer).
http://members.tripod.com/petermasek/marinerall.html |
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Jul 28 2011, 03:29 PM
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#38
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Senior Member Group: Members Posts: 4586 Joined: 5-April 05 From: Canada Member No.: 227 |
Another composite of two images from the big color basemap now being compiled.
Phil
-------------------- ... because the Solar System ain't gonna map itself.
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Aug 17 2011, 03:01 PM
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#39
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Senior Member Group: Members Posts: 4586 Joined: 5-April 05 From: Canada Member No.: 227 |
A comparison of presumably vent-like structures on Mercury and the Moon at the same scale. The Mercury pic was part of the press conference on JUne 16th, where it was captioned 'Etched Terrain"
Phil
-------------------- ... because the Solar System ain't gonna map itself.
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