M42 orion Nebula

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M42 orion Nebula

Postby andrewscomputers » Mon Dec 10, 2018 1:55 am

Hi all I processed a couple of images of M42.I thought I would share.Thanks for looking.
Andy
Attachments
m42sky.jpg
m42sky.jpg (87.86 KiB) Viewed 652 times
m42newsky.jpg
m42newsky.jpg (63.16 KiB) Viewed 652 times
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Re: M42 orion Nebula

Postby Aratus » Mon Dec 10, 2018 12:02 pm

There is lot of amazing detail in there, even in the outer parts. It has a lot of interesting colour changes, and lots of little dark clouds. It is even possible to see shadows of the clouds in your image.

Do you have a 'light pollution' or 'Nebula' filter?
I use an 11" reflector (Celestron CPC 1100) and a 3" refractor, (Sky-Watcher ST80) mounted on an equatorial wedge, housed in a 2.2m Pulsar observatory. I use a ZWO ASI 120MM, ZWO ASI1600MC and Canon 1300D for imaging.
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Re: M42 orion Nebula

Postby andrewscomputers » Mon Dec 10, 2018 12:29 pm

Hi Aratus yes I do have a light pollution filter and a nebula filter,do you think it would have helped the image.Thanks for the comments.I only used 100 second exposures on both images last night.
Andy
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Re: M42 orion Nebula

Postby Aratus » Mon Dec 10, 2018 1:40 pm

The background light pollution has unfortunately rendered the sky at the same brightness as the edge of the nebula. So, using a Light Pollution filter or a 'Nebula' filter would have increased the contrast of the nebula and the sky. M42 is so bright, that a suitable filter won't appreciably dim the image. It would also make it easier to process the image.

There is a slight trailing of the stars, which suggests that decreasing the exposure time will give a sharper image.
Alternatively take lots of images and hopefully one of them will track without trailing!
Alternatively look at using a focal reducer, which will widen the field, and reduce the effects of trailing. It should give a brighter image too. M42 will be around for a few months more, so plenty of time for getting an even better image. In the meantime,that is a good image to be pleased with.
I use an 11" reflector (Celestron CPC 1100) and a 3" refractor, (Sky-Watcher ST80) mounted on an equatorial wedge, housed in a 2.2m Pulsar observatory. I use a ZWO ASI 120MM, ZWO ASI1600MC and Canon 1300D for imaging.
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Location: East Lincolnshire

Re: M42 orion Nebula

Postby andrewscomputers » Mon Dec 10, 2018 1:55 pm

Hi Aratus thanks for the information,I will try a filter next time and I used a focal reducer on my Skywatcher ed80 scope which was a 0.8 from Altair.The camera I used was the Gpcam 290c which is a small chip,but I did try to find the comet but to no avail in locating,but hopefully will try and find it again.
Thanks
Andy
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Re: M42 orion Nebula

Postby night sky watcher » Mon Dec 10, 2018 6:29 pm

Andy,

Nice images of M-42 :) ,

CS,KLU,

Thanks :) ,

Tom
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Re: M42 orion Nebula

Postby andrewscomputers » Tue Dec 18, 2018 7:40 pm

Hi all I modified the second image using light pollution software and I thought I would share.Thanks for looking.
m42newskylp2.jpg
Light pollution software
m42newskylp2.jpg (60.26 KiB) Viewed 458 times

Andy
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Re: M42 orion Nebula

Postby Aratus » Fri Dec 21, 2018 5:02 pm

I've not come across 'Light Pollution Software' Presumably it decreases colours based on the spectrum of artificial lights. It seems to have worked pretty well on that image!
I use an 11" reflector (Celestron CPC 1100) and a 3" refractor, (Sky-Watcher ST80) mounted on an equatorial wedge, housed in a 2.2m Pulsar observatory. I use a ZWO ASI 120MM, ZWO ASI1600MC and Canon 1300D for imaging.
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Re: M42 orion Nebula

Postby The Man with the Corrugated Iron Roof » Tue Dec 25, 2018 2:49 pm

Like!

We should have a Like button on this messageboard.
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