800Whrs+ Staying Up Late ideas |
800Whrs+ Staying Up Late ideas |
Jun 6 2009, 07:04 AM
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#1
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Founder Group: Chairman Posts: 14433 Joined: 8-February 04 Member No.: 1 |
With Spirit producing an annoyingly large amount of power given her current predicament, the time may well have come to re-open the Gusev astronomy society. Anyone have any dusk / nightime observation ideas?
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Jul 1 2009, 05:37 PM
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#2
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Member Group: Members Posts: 293 Joined: 22-September 08 From: Spain Member No.: 4350 |
Is there any chance to bounce a radio signal on them from one of the satellites and listen it with Spirit? Since the martian atmosphere is so thin, I guess that the ionized tails would be closer to the ground.
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Jul 1 2009, 07:00 PM
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#3
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Dublin Correspondent Group: Admin Posts: 1799 Joined: 28-March 05 From: Celbridge, Ireland Member No.: 220 |
IIRC despite being much thinner at the ground Earth and Mars atmospheric density are pretty close at the altitudes where the bulk of meteors burn out - Mars lower gravity means the scale height is ~11km vs 6-7km for Earth. I ran the numbers sometime back but can't find them now unfortunately but I'd be very surprised if Martian meteors were generally burning up at significantly lower altitudes than on earth. There are further complications of course, most of the source "debris" will be slower relative to Mars than similar material impacting Earth's atmosphere and that might mean that it can penetrate lower (having less energy to burn through).
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