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Old 17-01-2021, 11:29 AM
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that_guy (Tony)
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Minor planet or asteroid?

Hi guys, just wanted some help identifying this minor planet or asteroid in my series of images of Leo Triplet. The first sub was taken around 2am on the 15th. The blink is at a rate of 1 frame per 0.05 seconds @ 5min per sub so I don't think it's a satellite

Link to GIF: https://i.imgur.com/IhwkzVW.mp4
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Old 17-01-2021, 12:23 PM
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gaseous (Patrick)
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I can't find any asteroid, satellite, or minor planet in that area for the time you refer to Tony, using Skysafari.
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Old 17-01-2021, 01:50 PM
PeterM
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I'm pretty sure it's 888 Parysatis it was around mag 14 and in that general area then from what I can see, but just heading out for lunch. Will have a better check later
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Old 17-01-2021, 02:01 PM
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Quote:
Originally Posted by PeterM View Post
I'm pretty sure it's 888 Parysatis it was around mag 14 and in that general area then from what I can see, but just heading out for lunch. Will have a better check later
I thought so to when I checked with Cartes Du Ciel but it didn't move enough in the skymap compared to the video. Maybe its just Cartes Du Ciel not updating the movement of minor asteroids.
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Old 17-01-2021, 02:54 PM
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calculated using my observatory coordinates (Q79) - Allowing for parallax, it seems to check out for your location Tony.
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Old 17-01-2021, 02:56 PM
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There you go! Thanks for the confirmation Jonathan. Always nice to find an Easter Egg in my images
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Old 17-01-2021, 02:59 PM
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Anyone got any ideas what the smaller fainter asteroid is?
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Old 17-01-2021, 04:38 PM
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Anyone got any ideas what the smaller fainter asteroid is?
Can you note the position of the smaller faint one.
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Old 17-01-2021, 05:12 PM
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I've star aligned and zoomed in a bit more. I tried using the blink to video feature but the video it renders is such poor quality. It's directly below the brighter one.
https://drive.google.com/file/d/1ePp...ew?usp=sharing

Last edited by that_guy; 17-01-2021 at 06:39 PM.
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Old 18-01-2021, 09:27 AM
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Well Tony that was a good pick up as I didn't even see that in my quick look at your original animation (but can just make it out now) old eyes I guess!
The 2nd object in your image is MPL 9718 Gerbefremov at mag 17ish.

As you can see in my SkyX screen grab there are lots of Minor Planets in that area at that time.

9718 Gerbefremov - Discovered 1976 Dec. 16 by L. I. Chernykh at the Crimean Astrophysical Observatory.
Gerbert Alexandrovich Efremov (b. 1933), a well-known designer of space technology, created the Proton and Almaz space stations. He is a member of Tsiolkovsky Russian Academy of Cosmonautics and was decorated with the Leonardo da Vinci Medal of the International Association of Peace Foundations.
https://ssd.jpl.nasa.gov/sbdb.cgi?orb=1;sstr=9718

888 Parysatis - Discovered 1918-Feb-02 by Wolf, M. at Heidelberg. This minor planet was named after the Persian Queen Parysatis of the Achaemenid Empire in the 5th century BC. She was the wife of the king Darius II, and the mother of Artaxerxes II of Persia, after whom the asteroid 831 Stateira was named. The naming was also mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 86).[2]
https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=888

Looking at your first image I can also see 6361 Koppel (mag 17ish) just below NGC3627.

The link below will take you to the Minor Planet checker, might be handy. Just put in date, time and RA & Dec, Radius of the search i.e. 60 arc minutes and the limiting magnitude and Produce list and you will get all you need.
https://minorplanetcenter.net//cgi-bin/checkmp.cgi

Very well done indeed! Oh and of course from my interest point that is a nice image of NGC3623 (M65) and yes I did check your image for Supernova and nothing there!
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Last edited by PeterM; 18-01-2021 at 12:26 PM.
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Old 18-01-2021, 11:50 AM
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What a handy resource! Thanks peter!
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