MSL - Astronomical Observations, Phobos/Deimos, planetary/celestial observations and more |
MSL - Astronomical Observations, Phobos/Deimos, planetary/celestial observations and more |
Jun 29 2013, 05:25 PM
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#31
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Senior Member Group: Members Posts: 4256 Joined: 17-January 05 Member No.: 152 |
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Aug 8 2013, 04:44 AM
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#32
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Senior Member Group: Members Posts: 4256 Joined: 17-January 05 Member No.: 152 |
Adding to Deimos's comments, both those MR frames you pointed to (and all the MR frames from that sequence) have the same bearing/elevation, as Joe's site shows, so they're pointing at a fixed direction in the sky, not following the stars. But the frames are minutes apart. Stars would have moved many pixels between the frames. So those are all hot pixels.
Stars are pretty hard to see with mastcam. Compare the raw Regulus shots with my heavily processed ones - how many stars can you see on the raw shots? And with short enough exposures that the stars wouldn't trail, it would be extremely hard. |
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