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Captured by
Douglas Rollain

Lion Nebula SH2-132 - RC71

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Posts Made By: Jim Thommes

January 28, 2009 03:50 AM Forum: CCD Imaging and Processing/Deep Sky

Thors Helmut

Posted By Jim Thommes

Greg,
That's a pretty nice capture - well done. It's true, you don't see this object a lot. It may be an interesting narrow band capture.

January 28, 2009 03:54 AM Forum: CCD Imaging and Processing/Deep Sky

NGC 1398

Posted By Jim Thommes

Thanks for the comments on the image folks.

Several commented on more data which I think wopuld be a good idea. Unfortunately this object is getting kind of past it's prime this season. There's always next year.

February 5, 2009 03:56 AM Forum: Digital SLR AstroPhotography

From Orion to Horsehead

Posted By Jim Thommes

Very cool image - congrats!

February 10, 2009 04:30 AM Forum: CCD Imaging and Processing/Deep Sky

Thors Helmet

Posted By Jim Thommes

Greg,
Image looks really good. Processing looks good. This guy can be a tough object, but you make me curious about what proved tough to process.

February 10, 2009 04:38 AM Forum: CCD Imaging and Processing/Deep Sky

Gum-1&PK223-2.1

Posted By Jim Thommes

Very nicely done Jason.

It is interesting toi see this composition and PK233-2.1. I have a similar composition of this area and I never noticed the planetary. I looked and sure enough it is there - not as prominent as yours though.


February 11, 2009 04:37 AM Forum: Digital SLR AstroPhotography

The Traveler's Rosette

Posted By Jim Thommes

Ivan,
The image turned out really nice. Good job.

February 13, 2009 05:33 AM Forum: CCD Imaging and Processing/Deep Sky

NGC1532

Posted By Jim Thommes

Greg,
That is a pretty interesting galaxy and you have a mighty fine image of it. Something interesting is going on with the arms or we just have a unusual view from our perspective on Earth.


February 13, 2009 05:35 AM Forum: CCD Imaging and Processing/Deep Sky

Sharpless 302

Posted By Jim Thommes

Thanks folks for the comments on the image.

February 20, 2009 04:24 AM Forum: Digital SLR AstroPhotography

H-alpha filter on a DSLR

Posted By Jim Thommes

Steve,
I have a modified Canon 350D. You may know that Astronomik makes an EOS clip with H-Alpha 13nm bandpass. here are some images:

http://www.jthommes.com/Astro/DSLR/NGC1499.htm
http://www.jthommes.com/Astro/DSLR/M42-NGC1977.htm
http://www.jthommes.com/Astro/DSLR/IC1318.htm

In general, I have to say I am more successful in narrowband imaging with my CCD camera (dedicated astro camera). It seems that the big challenge is noise and dynamic range. Seems that the finer details suffer with a DSLR than with a CCD, yet some reasonable results can still be achieved.

February 22, 2009 06:26 AM Forum: CCD Imaging and Processing/Deep Sky

Christmas Tree and Cluster NGC 2264

Posted By Jim Thommes

Louie, Tyler,
Thanks for the comments on the image.