Asteroid approach, Science operations begin! |
Asteroid approach, Science operations begin! |
Aug 24 2018, 06:48 PM
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#1
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Member Group: Members Posts: 541 Joined: 17-November 05 From: Oklahoma Member No.: 557 |
NASA update on the OSIRIS-REx mission, includes first picture of the asteroid from the spacecraft.
Begins Operations |
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Mar 21 2019, 03:14 PM
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#2
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Senior Member Group: Members Posts: 4252 Joined: 17-January 05 Member No.: 152 |
Recall that that press release image was a composite of two frames, differing by a factor of a few thousand in shutter speed. So if you're referring to the arc of bright pixels reaching clockwise around Bennu from the main "jet", the sharpness of that arc's inner edge suggests that edge is the splice between the two frames. Since the outer exposure was much longer, it was probably picking up some glare from the main asteroid's body, which appeared as a sprinkling of bright pixels.
The main "jet" would appear much, much fainter (or be invisible) if this was a single exposure. |
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Lo-Fi Version | Time is now: 15th June 2024 - 06:39 AM |
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