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Another M42 narrow band

Started by hakescl, 10/30/2009 01:31AM
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Posted 10/30/2009 01:31AM Opening Post
Charles Hakes
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Join Date: Jun 2001

Location: Durango CO, US

Posts: 690

This one layers an L channel with the "standard" Hubble colors. Quite a mix of 15, 30, and 60 second exposures for the narrow band filters (6nm AstroDon) and 1 and 3 second exposures through a clear filter. Those stars really start blooming quickly. Although it took less than 30 minutes total exposure, I spent way longer fiddling with the processing on this one.

Charlie


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hakescl's attachment for post 48840
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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 10/31/2009 04:02PM #1
Eric Houby
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Location: Parker CO, US

Posts: 78

Charlie,

Great shot. You did a nice job avoiding star bloat and pulling out the SII. I've been working on a very similar shot of M42 but without the L. I thought it was interesting to compare our results after processing similar data.

Total time is about 25 minutes with 30 second exposures. Image scale is 1" per pixel using my M703 and QSI 516wsg.

Eric

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bbd1624's attachment for post 133588
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Posted 10/31/2009 09:17PM #2
Jim Thommes
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Charlie, Eric,
Pretty cool pictures. The narrow bands always offer a great perspective.
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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 11/01/2009 04:06AM #3
Tyler Allred
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Join Date: May 2003

Location: Tremonton UT, US

Posts: 2755

Man that is a nice sharp image. The trapezium easily shows six stars, which is pretty impressive. Nice processing too!
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)
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