Orpington Astronomical Society

Astronomy => Astrophotography => Topic started by: Marek on Mar 27, 2014, 21:17:47

Title: Pls help identify the object? Is it flare,reflex?
Post by: Marek on Mar 27, 2014, 21:17:47
Pls help identify the object in the picture ,is it just a flare ,reflex on the lens or Am I misssing something in Stellarium?This is 20 sec exposure,at ISO 640,taken by Canon 7D with a Tamron lens attached f 4,5 at the focal lenght of 141mm,I took another exposure of the Jupiter but It was exactly tyhe same?  Intrigued:)   (http://i.imgur.com/vsFAaf7.jpg?1)
Title: Re: Pls help identify the object? Is it flare,reflex?
Post by: MarkH on Mar 27, 2014, 21:42:01
What am I meant to be looking at ?
Title: Re: Pls help identify the object? Is it flare,reflex?
Post by: Marek on Mar 27, 2014, 21:48:47
The fuzzy object on the right side of the Jupiter ,slightly upwards:)
Title: Re: Pls help identify the object? Is it flare,reflex?
Post by: Rick on Mar 27, 2014, 23:22:54
The important information lacking is the date and time of the photo...
Title: Re: Pls help identify the object? Is it flare,reflex?
Post by: MarkS on Mar 27, 2014, 23:25:58
It's not a sky object - it's some kind of lens internal reflection.

I can see 4 moons of Jupiter!

Mark
Title: Re: Pls help identify the object? Is it flare,reflex?
Post by: MarkH on Mar 28, 2014, 07:42:06
Yes I think that's an internal lens reflection somewhere.
Title: Re: Pls help identify the object? Is it flare,reflex?
Post by: Marek on Mar 28, 2014, 08:17:45
The date was 25.03.2014 time 09 59 PM,now i belive in flare version ,it was apparently caused by an UV filter ,next time I will remove it before taking a photo:)
Title: Re: Pls help identify the object? Is it flare,reflex?
Post by: Mike on Mar 31, 2014, 16:27:17
I had something similar once and it turned out to be a reflection from a green LED on one of my gadgets nearby. After I fitted a dew shield it disappeared.