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Sunday, September 6, 2015

"Howling Wolf" Nebula, vdB 149, vdB 150, LDN 1235 and PGG 67671

The second photo published from the Deep Sky West observatory. Lights are taken under a very dark skie. Unlike in my current light polluted location, it's now possible to image broadband targets, galaxies, reflection nebulae and dark nebulae! HERE is some more info about the Deep sky West Observatory.

I gave the nickname "Howling Wolf" after I saw the photo first time in my monitor. At the end of this blog post, there is an explanation for the nickname.

VdB 149 and companions in the constellation Cepheus
Click for a large image

Beautiful collection of dark and reflection nebulae in Cepheus including a galaxy. This is a broadband LRGB image in natural colors.

Full resolution details from the image above

LDN 1235

vdB 150

vdB 149

vdB 149 and some interesting shapes in the dust cloud
Click for a large photo

PGG 67671

An experimental starless version
Click for a large photo

A starless version to show better the actual dust cloud

Howling Wolf

This is how I see the photo in my head.

An animated GIF, stars vs starless
Click for a large image

Technical details

Processing workflow

Stacked and calibrated in CCDStack2.
Deconvolution with a CCDStack2 Positive Constraint, 27 iterations, added at 33% weight
Color combine in PS CS3
Levels and curves in PS CS3.

Imaging optics
 Takahashi FSQ-106EDXIII

 Astro-Physics Mach1AP GTO with GTOCP3

Cameras and filters

Astrodon Luminance Tru-Balance E-Series Gen
Astrodon Red Tru-Balance E-Series Gen 2
Astrodon Green Tru-Balance E-Series Gen 2
Astrodon Blue Tru-Balance E-Series Gen 2

Exposure times
Luminance, 32 x 900s = 8h
Red = 13 x 900s = 3.25h
Green = 12 x 900s = 3h
Blue = 5 x 900s = 1.25h
Total 15.5h

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