Unknown object (to me) near Jupiter Night Sky 10/12/12

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Unknown object (to me) near Jupiter Night Sky 10/12/12

Postby ParkgatePete » Tue Dec 11, 2012 12:51 am

Hi all. I'm not one for posting usually but I have taken a photo of Jupiter this evening that has baffled me. Due to working late and having an early morning to follow I didn't have time tonight to set up my usual setup, EQ6 Mount and 10" Newtonian reflector. Not wanting to miss out on the great clear conditions over here in Parkgate (West Cheshire) I just grabbed my tripod and DSLR. My intention was to see what a short exposure (5 sec ISO 6400) of M42 would like with a 200mm telephoto lens. To gain focus I pointed at Jupiter 1st as it is the brightest object and took a few shots adjusting the focus to get Jupiter as small as possible (and presumably in focus), once I had done this I re-positioned and continued to take a few snaps of M42 and then returned inside to check my results. When I checked back through the images I had taken I came to one of the focus shots I had taken (attached image) and saw something I wasn't expecting. I checked Stellarium but nothing was identified close to Jupiter. Does anyone know what this oval blue object is? It also appears to have a bubble around it! I know the image is of poor quality, it was afterall a single expopsure of 5 sec at ISO 6400 on an unmodified Nikon D7000. What is really odd though is once I had seen this I went back outside to try to get another image, which I did but none of the subsequent images showed the blue object. Sorry to waste anyones time with this question as there is probaly a really obvious explanation, but unfortunately I dont know what it is! Thanks for reading.

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Re: Unknown object (to me) near Jupiter Night Sky 10/12/12

Postby julianr » Tue Dec 11, 2012 1:12 am

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Re: Unknown object (to me) near Jupiter Night Sky 10/12/12

Postby ParkgatePete » Tue Dec 11, 2012 1:28 am

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Re: Unknown object (to me) near Jupiter Night Sky 10/12/12

Postby julianr » Tue Dec 11, 2012 1:53 am

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Re: Unknown object (to me) near Jupiter Night Sky 10/12/12

Postby davedubya » Tue Dec 11, 2012 1:56 am

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Re: Unknown object (to me) near Jupiter Night Sky 10/12/12

Postby thymelord » Tue Dec 11, 2012 7:42 am

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Re: Unknown object (to me) near Jupiter Night Sky 10/12/12

Postby ParkgatePete » Wed Dec 12, 2012 12:54 am

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Re: Unknown object (to me) near Jupiter Night Sky 10/12/12

Postby arioch » Wed Dec 12, 2012 8:18 am

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Re: Unknown object (to me) near Jupiter Night Sky 10/12/12

Postby hawk_eye1975 » Tue Dec 18, 2012 8:17 am

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Re: Unknown object (to me) near Jupiter Night Sky 10/12/12

Postby hawk_eye1975 » Tue Dec 18, 2012 8:22 am

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