February 17, 2015

M42, the Great Nebula (Dec. 15, 2014)

Ah, the dark art of imaging M42.  What can one say?

Telescope: Astro-Tech AT111EDT (f/7) and Astro-Tech AT2FF
Camera and Exposure: SXVF-H9C, 20x30", 20x60", and 29x300"; Alnitak Flat-man flats
Filter(s): Astronomik CLS
Guiding: SX Lodestar and SX OAG
Mount: Takahashi NJP
Software: Nebulosity, PHD, Maxim DL, Registar, Photoshop CS3
Location: The Woodlands, TX

2 comments:

RoryG said...

Yeah, folks look at M42 and think, "It's nice and bright, so it ought to be easy." That brightness is what makes it so difficult, though! I think that if anyone can master processing HDR images of M42, then they can pretty much process anything that's up there. Nice job!

Polaris B said...

Thanks, Rory! Well, it's an odd art in which we engage. Squeezing the dynamic range falsifies, to some extent, but it is the only way to show what the bright stars in the Trapezium do to their surroundings. I'll probably attempt it again in a few years and try to improve again. This is about my fifth or so, and I learn something about the nebula and the art each time.