Image of the day

Captured by
Douglas Rollain

Lion Nebula SH2-132 - RC71

My Account

New to Astromart?

Register an account...

Need Help?

Posts Made By: Thomas V Davis

November 27, 2006 04:48 AM Forum: CCD Imaging and Processing/Deep Sky

NGC 752 -Open Cluster

Posted By Thomas V Davis

Beautiful color and composition!

Tom

November 28, 2006 11:33 PM Forum: CCD Imaging and Processing/Deep Sky

how do set the correct colour in your image?

Posted By Thomas V Davis

The most accurate way is G2V star calibration. Here is an excellent tutorial by Don Goldman:

http://www.astrodon.com/G2V/g2v2.html

Best,
Tom

December 6, 2006 10:01 PM Forum: CCD Imaging and Processing/Deep Sky

Big M31

Posted By Thomas V Davis

Excellent!! Wonderful detail!

Here is mine from last year taken with an AP 155EDF. I too am pleased with the level of dust lane detail at the core and in M110 that this scope can provide.

http://www.tvdavisastropics.com/astroimages-1_00003f.htm

I look forward to your LRGB version.

Best,
Tom Davis

December 8, 2006 02:50 PM Forum: CCD Imaging and Processing/Deep Sky

December 9, 2006 03:22 AM Forum: CCD Imaging and Processing/Deep Sky

December 9, 2006 11:24 PM Forum: CCD Imaging and Processing/Deep Sky

Sculptor Galaxy

Posted By Thomas V Davis

Jim, that's a beautiful image! Well done!

Tom

December 12, 2006 12:55 AM Forum: CCD Imaging and Processing/Deep Sky

What's going on here

Posted By Thomas V Davis

What were your processing steps? Darks-Flat reduction? Anything else?

Tom

December 14, 2006 04:43 PM Forum: CCD Imaging and Processing/Deep Sky

Horsehead in Halpha

Posted By Thomas V Davis

Hi Greg,

Nice beginning.

It seems quite noisy. How much time? Did you dither between exposures? If you could get 3-4 hours total with 20-30 minutes exposures - dithered between would would have a very nice, deep, smooth image. I would concentrate more time to the H-alpha before attempting the color. If you use this currently with color it will likely be very noisy.

Hope your having a nice summer. I'm freezing up here and the weather has been terrible.

Best,
Tom

December 19, 2006 07:29 PM Forum: CCD Imaging and Processing/Deep Sky

Congrats Greg B on ATWB POD

Posted By Thomas V Davis

Another one!! Great!!!

Tom

December 25, 2006 01:33 AM Forum: CCD Imaging and Processing/Deep Sky

The Great Orion and Running Man Nebulas

Posted By Thomas V Davis

Very nice and deep!! Great job Greg -- and a Merry Christmas down under!!

Tom