Quote:
Originally Posted by Tropo-Bob
Glen, thanks for the image of Vesta. Its interesting to see that Vesta moved enough to blur during your imaging time.
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That is apparent motion Bob. Vesta does have orbital movement (19.34 kms/sec). I was using Sideral tracking so the background stars are stationary in relation to the Earth's orbital speed and rotation, but Vesta is not locked in place. All the details are in the link below.
https://en.m.wikipedia.org/wiki/4_Vesta
Btw, this is the same technique used to find comets, and other near Earth objects.