NGC 5907 revisted

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NGC 5907 revisted

Postby gordon_haynes » Mon Jun 01, 2009 5:16 am

Hi all
I thought I would have another go at this galaxy, except this time use the Starlight Xpress H9 for a bigger image scale and also to try out my new toy, an LVI smartguider (yes you heard right this is an auto guided image). Because of the light pollution where I live I don't really get the best out of RGB imaging, but as my house is still in the way of the splendours that cygnus has to offer and my neighbours tree is blocking Cepheus for at least another month I don't really have a lot of narrow band targets to go for at the moment. This is made up of 14x4 minutes Red, 9x4 minutes Green and 15x4 minutes Blue, I would have liked longer subframes but with a half moon present, the light pollution and sky glow I would have been pushing my luck. Some very bright satellite and aeroplane streaks put paid to the other subframes (I didn't realise they showed up so bright with RGB imaging as they are normally fairly faint with NB). Again I would have prefered more but with a 3 hour imaging window at this time of year I have to be grateful for what I get. If anybody can tell me what the faint streak is in the bottom right of the picture I would be grateful as I haven't been able to find it yet. Thanks for looking, I have put a very short article about the smart guider in the miscellaneous section of the equipment page on my website [url=http://www.imagingtheheavens.co.uk/][u][color=#0000ff]http://www.imagingtheheavens.co.uk[/color][/u][/url] which I will be adding to at a later date, it is very easy to use.
Best wishes
Gordon

[image]http://www.imagingtheheavens.co.uk/USERIMAGES/Needlehigh.jpg[/image]
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RE: NGC 5907 revisted

Postby brianb » Mon Jun 01, 2009 9:26 am

Superb image!

[quote]If anybody can tell me what the faint streak is in the bottom right of the picture I would be grateful as I haven't been able to find it yet. [/quote]
It does look like an asteroid track, doesn't it? I believe there is a site somewhere that you can plug in the image coordinates & size of the field and the time & date and it will list the known solar system bodies in the field.
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RE: NGC 5907 revisted

Postby gordon_haynes » Mon Jun 01, 2009 11:56 am

Hi Brian
Thanks for the comments, what led me away from the meteor/satellite theory was that I had a look at other images of the same subject and the blue streak is there in every one. Somebody has since found ut for me on skymap, it is a galaxy PCG 54419 at mag 16.4
Best wishes
Gordon
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