[meteorite-list] 2011 MD Animation
From: John Hendry <pict_at_meteoritecentral.com>
Date: Tue, 28 Jun 2011 10:04:46 -0500
I'm counting what appear to be 17 fainter companion objects in parallel
trajectories. Is that what I'm looking at or is it some sort of video
artefact? If they are companions can their size be determined
approximately from the relative brightness or by some other means?
On 28/06/2011 01:24, "Richard Kowalski" <damoclid at yahoo.com> wrote:
>I got a few positional images of this object with our 1.5-m (60") on Mt.
>Lemmon last night, but Jure Skvar? at the ?rni Vrh Observatory in
>Slovenia obtained one of the nicer time lapse animations of the asteroids
>motion against the background stars.
>He writes on his Youtube page:
>"The images for this animation were taken using a 60-cm telescope from
>the ?rni Vrh Observatory on the night of 26 July 2011. Each exposure
>was of 15 seconds. The telescope was tracking on the asteroid, changing
>the rate of tracking between exposures. The entire sequence lasted
>about 4h40m, during which 635 exposures were made. At the time the
>asteroid was less than 200000 km from Earth. At the closest approach
>some 15 hours later the distance was about 20000 km."
>4 hours, 40 minutes of imaging the NEO until his dawn, compressed down to
>43 seconds. Enjoy
>Full Moon Photography
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Received on Tue 28 Jun 2011 11:04:46 AM PDT