Perseverance valley |
Perseverance valley |
Jul 24 2017, 02:02 PM
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#16
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Member Group: Admin Posts: 976 Joined: 29-September 06 From: Pasadena, CA - USA Member No.: 1200 |
Hi Fred, The originals have that bright 'half moon' in the lower third of the frames (which I think you chopped off) What is that bright area? It is caused by the dust of times. ;-) The small hood we have in front optical element only partly occludes the Sun. Therefore, even when the Sun is outside the field of view it will illuminate the dust which causes diffusion and enters the optical path. Most of the dust was accumulated around Sol 1200+ (2007) but during the years the wide have cleaned up the front elements quite a bit. Paolo -------------------- Disclaimer: all opinions, ideas and information included here are my own,and should not be intended to represent opinion or policy of my employer.
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Jul 30 2017, 02:07 AM
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#17
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Member Group: Members Posts: 507 Joined: 10-September 08 Member No.: 4338 |
https://mars.nasa.gov/mer/mission/status.html#opportunity
Looks like Oppy has insisted on a two-week vacation during Solar Conjunction! |
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Aug 1 2017, 03:20 PM
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#18
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Senior Member Group: Members Posts: 4256 Joined: 17-January 05 Member No.: 152 |
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Aug 1 2017, 04:22 PM
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#19
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Martian Photographer Group: Members Posts: 353 Joined: 3-March 05 Member No.: 183 |
Taurus, just below pointy end of the Hyades. Kinda random. A rare night comm pass allowed free astronomy, but no moons were up. Still useful as practice and will add a night opacity datum..
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Aug 1 2017, 07:40 PM
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#20
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Member Group: Members Posts: 507 Joined: 10-September 08 Member No.: 4338 |
http://www.planetary.org/explore/space-top...nce-valley.html
Monthly MER Update from the Planetary Society. Also has a nice star photo. I'm wondering what all the proper motion streaks are, especially the sideways ones. Meteors in the Mars atmosphere? |
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Aug 1 2017, 08:08 PM
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#21
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Senior Member Group: Members Posts: 4256 Joined: 17-January 05 Member No.: 152 |
Thanks, Deimos.
Marsophile, the steaks directed from 11 o'clock to 5 o'clock are stars trailing during the exposure. Everything else should be cosmic ray hits. |
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Aug 2 2017, 05:38 PM
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#22
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Founder Group: Chairman Posts: 14434 Joined: 8-February 04 Member No.: 1 |
Here's the field as calculated by Astrometry.net
( http://nova.astrometry.net/user_images/1693971#annotated ) |
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Aug 5 2017, 04:14 AM
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#23
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Member Group: Members Posts: 507 Joined: 10-September 08 Member No.: 4338 |
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Aug 5 2017, 06:31 AM
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#24
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Solar System Cartographer Group: Members Posts: 10231 Joined: 5-April 05 From: Canada Member No.: 227 |
My guess is that it's an erosional texture as seen in the MI images from the same sol.
Phil -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke Maps for download (free PDF: https://upload.wikimedia.org/wikipedia/comm...Cartography.pdf NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain) |
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Aug 9 2017, 05:55 AM
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#25
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Member Group: Members Posts: 184 Joined: 2-March 06 Member No.: 692 |
I guess, since oppy moved immediately after conjunction, the auto mode reset she had was no big deal.
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Aug 12 2017, 03:50 AM
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#26
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Member Group: Members Posts: 507 Joined: 10-September 08 Member No.: 4338 |
http://qt.exploratorium.edu/mars/opportuni...00P1956L0M1.JPG
This image may provide some perspective on the channels and their relationship to the surrounding landscape. |
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Aug 15 2017, 12:31 AM
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#27
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Member Group: Members Posts: 866 Joined: 15-March 05 From: Santa Cruz, CA Member No.: 196 |
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Aug 16 2017, 01:33 PM
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#28
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Senior Member Group: Members Posts: 2872 Joined: 22-April 05 From: Ridderkerk, Netherlands Member No.: 353 |
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Aug 16 2017, 07:39 PM
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#29
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Senior Member Group: Members Posts: 2872 Joined: 22-April 05 From: Ridderkerk, Netherlands Member No.: 353 |
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Aug 16 2017, 10:53 PM
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#30
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Solar System Cartographer Group: Members Posts: 10231 Joined: 5-April 05 From: Canada Member No.: 227 |
This is Jan's 4816 panorama reprojected into a roughly maplike geometry to give a view of the surroundings. The lower right (southeast) corner is still bad in this version. The tracks cross a small crater.
Phil -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke Maps for download (free PDF: https://upload.wikimedia.org/wikipedia/comm...Cartography.pdf NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain) |
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