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Asteroid 3122 Florence fly-by
http://www.boltonastro.co.uk/forums/viewtopic.php?f=1&t=956
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Author:  rwilkinson [ Fri Sep 01, 2017 3:18 pm ]
Post subject:  Asteroid 3122 Florence fly-by

This shouldn't be too difficult to observe or image with a small telescope:
http://www.skyandtelescope.com/press-releases/view-close-flyby-of-asteroid-florence/

Author:  rwilkinson [ Sat Sep 02, 2017 7:12 am ]
Post subject:  Re: Asteroid 3122 Florence fly-by

I managed to track it over the course of 40 minutes, until it completely clouded over:
Attachment:
File comment: 3122 Florence on 1-Sep. 29x 60-sec with HX916 on 80ED at f/4.6.
florence.gif
florence.gif [ 5.22 MiB | Viewed 768 times ]
It was moving so quickly that it was trailing significanly even over my 1-minute exposures - I'd have been better using 15 or even 10-sec!

Author:  PMiskiw [ Mon Sep 04, 2017 10:14 am ]
Post subject:  Re: Asteroid 3122 Florence fly-by

It looks as though it's rotating Ross.

Author:  rwilkinson [ Mon Sep 04, 2017 10:33 am ]
Post subject:  Re: Asteroid 3122 Florence fly-by

PMiskiw wrote:
It looks as though it's rotating Ross.

No Peter, what's happening is that the target is moving significantly during my 1-min exposures, and combined with the periodic tracking errors of my RA drive over this interval gives its progress a jerky appearance.
In fact its rotation period has been measured at just under 2.4 hours.

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