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Uranus, 4 moons, and an asteroid


 

Hey Folks,

I had some shots of Uranus from the 15th and decided to put together a video of it showing the moon positions against predicted positions.

I've attached the animated gif but if that did not work then you can find it here:



There is also a mag 18.5 main belt asteroid up from Uranus and to the left of the bright star.

Cheers,

Andre


 

Very cool!

On Sat, Dec 19, 2020 at 6:05 PM Andre Paquette <andre@...> wrote:

Hey Folks,

I had some shots of Uranus from the 15th and decided to put together a video of it showing the moon positions against predicted positions.

I've attached the animated gif but if that did not work then you can find it here:



There is also a mag 18.5 main belt asteroid up from Uranus and to the left of the bright star.

Cheers,

Andre


 

Andre -- Yes, very nice! Can you pls give some specs on the scope, camera , and durations of the exposures? Thx -- Michael

-----Original Message-----
From: [email protected] <[email protected]> On Behalf Of Attilla Danko
Sent: December 19, 2020 11:20 PM
To: [email protected]
Subject: Re: [OAFs] Uranus, 4 moons, and an asteroid

Attention : courriel externe | external email

Very cool!


On Sat, Dec 19, 2020 at 6:05 PM Andre Paquette <andre@...> wrote:

Hey Folks,

I had some shots of Uranus from the 15th and decided to put together a video of it showing the moon positions against predicted positions.

I've attached the animated gif but if that did not work then you can find it here:



There is also a mag 18.5 main belt asteroid up from Uranus and to the left of the bright star.

Cheers,

Andre


 

Hi Michael,

All the specs are in the link if you follow it and click on "Technical Card" in the top right.

The quick answers are:? exposures are 5min long.? Scope is a PlaneWave CDK 12.5".? Camera is an Apogee U16M.

I was not specifically trying to capture the moons -- just doing regular asteroid work so I was using 5 minute exposures to get me down to about mag 20.? I thought the results were fun and so did some extra processing to animate it and see how it compared against what was expected.

Cheers,

Andre


 

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OK, Andre - I was quite impressed with the movement of Uranus and the moons, but now you've really peaked my interest.? What are you doing with the asteroids?? I've measured the rotation period of one asteroid, done enough astrometry to get an observer's code from the Minor Planet Center (3 times now), and done pretty pictures of several asteroids (basically just 3-5 exposures to show a short line of dots, sometimes in RGB so the dots are different colours, so it's identifiable) for friends, and briefly was trying to scan all my images for unknown asteroids (too many images too little time.)? Generally though I try not to let them interfere with my photometry.

Rick

---------- Original Message ----------
From: Andre Paquette <andre@...>
Date: December 20, 2020 at 12:35 AM

Hi Michael,

All the specs are in the link if you follow it and click on "Technical Card" in the top right.

The quick answers are:? exposures are 5min long.? Scope is a PlaneWave CDK 12.5".? Camera is an Apogee U16M.

I was not specifically trying to capture the moons -- just doing regular asteroid work so I was using 5 minute exposures to get me down to about mag 20.? I thought the results were fun and so did some extra processing to animate it and see how it compared against what was expected.

Cheers,

Andre


?


 

Hi Rick,

Sounds like the same kind of thing you're doing, but just the astrometry.? I have an observatory code for my place in Carp (and I have/had ones for a couple of remote sites in the US) but I don't yet have one for the new place near FLO.? I've just been too busy with other things and haven't had the focus to follow through with it, but I'd like to do that at some point.? If you can get down to mag 20-ish then you can occasionally spot something unlisted and participate in the discovery/recovery process.

Cheers,

Andre


 

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I did find one object which was unknown, but I only found it a week or two after shooting the images by which time I couldn't track it down again.? So although I reported it I don't get credit for a discovery.? Unless someone else eventually re-discovers it and they can track its orbit back to my observations in which case I will get the credit.

Rick

---------- Original Message ----------
From: Andre Paquette <andre@...>
Date: December 20, 2020 at 12:01 PM

Hi Rick,

Sounds like the same kind of thing you're doing, but just the astrometry.? I have an observatory code for my place in Carp (and I have/had ones for a couple of remote sites in the US) but I don't yet have one for the new place near FLO.? I've just been too busy with other things and haven't had the focus to follow through with it, but I'd like to do that at some point.? If you can get down to mag 20-ish then you can occasionally spot something unlisted and participate in the discovery/recovery process.

Cheers,

Andre


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