TiME |
TiME |
May 5 2011, 08:48 PM
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#1
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Member Group: Members Posts: 613 Joined: 23-February 07 From: Occasionally in Columbia, MD Member No.: 1764 |
Ahoy mateys!
NASA announces Discovery mission selection for Phase A. Titan Mare Explorer (TiME) is among them. Har! |
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May 16 2011, 03:08 PM
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#2
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Member Group: Members Posts: 214 Joined: 30-December 05 Member No.: 628 |
Good point. Roughly speaking the Earth should be visible for about as long as the sun; from the polar regions basically 'round the clock until the next equinox. It will be getting pretty close to the horizon, though.
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May 16 2011, 04:12 PM
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#3
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Senior Member Group: Members Posts: 2173 Joined: 28-December 04 From: Florida, USA Member No.: 132 |
...the Earth should be visible for about as long as the sun; from the polar regions basically 'round the clock until the next equinox.... Titan will still go behind Saturn every 16 days as it orbits. But the actual time that Saturn blocks signals should be very short. Based on Saturn radius of 60,000 km and Titan orbit radius of 1,200,000 km, I calculate that Titan is blocked by Saturn for less than 1/60th of its orbit. |
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