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Started by jthommes, 04/14/2010 03:23AM

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Posted 04/14/2010 03:23AM | Edited 04/14/2010 03:24AM Opening Post

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Join Date: Jan 2003

Location: San Diego CA, US

Posts: 1418

Here is M101 made with my new ST8300M. I've been out a couple of times with it but I still need to get my focusing together with CCDSoft. Image and exposure / processing details are here:

http://www.jthommes.com/Astro/M101D.htm
(be sure to click on the image for full res)

Scope: C8 at f/7.5
Camera: ST8300M - Astronomik LRGB 1-1/4 " filters (yes, 1-1/4" - vignetting not too bad)
Mount G11/Gemini
Guiding: Megrez II 80 mm at 555 mm FL, DI Pro, PhD Guiding

Oh, and I did add some 2009 Ha data from my Artemis285 camera.

Jim

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Jim Thommes

Mak-Newt 152 mm
C8
Megrez II APO
Zenithstar 66 mm APO
G11/Gemini
ST8300M
Artemis285 Camera
Canon 350D DSLR

http://jthommes.com/Astro/

Posted 04/14/2010 03:47PM | Edited 04/14/2010 03:47PM #1

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Join Date: Jul 2003

Location: Denver CO, US

Posts: 6093

That's a really nice one Jim. Your flats took care of any vignetting in this image.

Jim

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Posted 04/16/2010 02:16AM #2

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Join Date: Sep 2005

Location: Boisbriand QC, CA

Posts: 175

Looks good Jim, congrats on the new camera.

cheers,

Jeff

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Posted 04/16/2010 03:17AM #3

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Join Date: May 2003

Location: Tremonton UT, US

Posts: 2755

Looking good Jim! Nice new camera... I hope you love it.
Cheers,
Tyler

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"The expression of the beautiful is in direct ratio to the power of perception acquired by the artist." (Gustave Courbet)

Posted 04/17/2010 01:34PM #4

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Join Date: Jun 2001

Location: Durango CO, US

Posts: 690

Very nice pinwheel. This could be my monitor, but the outer arms look a little more greenish rather than cyan-ish. Have you tried to do any color matching to your other camera? (I guess this could open a whole different issue of what counts as "correct" color...) Still looks good though.

Charlie

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Fort Lewis Observatory: (37.238, -108.052) ~2360m (7744 ft.) elevation.
Darkness - typically 6.5+
Scope - Meade 16" LX200; f6.3 focal reducer
Focus - JMI Smart focus
Camera - SBIG ST-10XE; (~.5"/pixel)
Guiding - AO-8 and/or Meade 5"/DSI/PHD
http://www.fortlewis.edu/observatory

Posted 04/30/2010 09:42PM #5

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Join Date: Feb 2004

Location: Kurrajong, NSW, AU

Posts: 857

Lots of detail there. The 8300 chip makes a great camera.

Greg.

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Posted 05/01/2010 12:23AM #6

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Join Date: Sep 2005

Location: Boisbriand QC, CA

Posts: 175

Superb shot Jim, how do you like the 8300 so far?

cheers,

Jeff

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Posted 05/03/2010 03:49PM #7

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Join Date: Aug 2001

Location: Temecula CA, US

Posts: 64

Nice picture,good luck with your new camera. The ST8300M seems to be a good camera with lots of promise.
Looking forward to more images from you with this camera as the weather begins to favor astronomy more.

Sam

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Sam

samsastro.com

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