Dawn Survey Orbit Phase, First orbital phase |
Dawn Survey Orbit Phase, First orbital phase |
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#1
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![]() Senior Member ![]() ![]() ![]() ![]() Group: Members Posts: 1729 Joined: 3-August 06 From: 43° 35' 53" N 1° 26' 35" E Member No.: 1004 ![]() |
I think it's time we start a new thread
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#2
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![]() Administrator ![]() ![]() ![]() ![]() Group: Admin Posts: 5172 Joined: 4-August 05 From: Pasadena, CA, USA, Earth Member No.: 454 ![]() |
The answer to that question is in the paper that tfisher linked to: http://www2.keck.hawaii.edu/inst/people/co...wg/icarus97.pdf
QUOTE We propose a prime meridian centered on the most prominent visible feature. This is a nearly circular area, about 200 km across, with a lower albedo than its surroundings. Its origin is unknown at this time. Because it is the largest visible feature on Vesta, the name Olbers Regio has been proposed in honor of the asteroid’s discoverer; the name is not yet official. We have adjusted the longitude system to put 08 longitude at the center of this feature....
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