M 78 | Master Darks

M 78

Show astrometry data

M78 is a reflection nebula in the constellation Orion, part of the Orion Molecular Cloud Complex. The gases are visible as a result of reflected light from magnitude 10 stars within the nebula.

M 78 is approximately 1,600 light years from Earth and is about 10 light years across. It is the brightest diffuse reflection nebula in the sky, and can easily be seen through a small telescope or large binoculars. This image, taken in Texas with our 17" telescope, reveals intricate details and depth within the nebula. 20 minute subexposures were taken using L, R, G, B and Ha filters. The completed image (with Ha added to the Red channel) totals almost 45 hours of exposures.

Data collected at the Dark Sky Observatory Collaborative (DSOC) in Ft. Davis, TX using SC Observatory's remote Planewave CDK 17" f/6.8 scope, in collaboration with:

John Kasianowicz, Josh Balsam, Mike Selby, Dhaval Brahmbhatt, Scott Johnson, Mike Bushell, Rich Johnson

Image processing: Andy Chatman

Object details

Nebula in Orion

Right Ascension: 05h 46m 46.7s

Declination: +00° 00′ 50″

Magnitude: 8.3

Moon Age Average: 20.10 days

Moon Phase Average: 31.64 %

Imaging Setup

Location:

Fort Davis, Texas, USA

Date:
Dec 26, 2016, Jan 19, 2017, Jan 24, 2017, Jan 26, 2017, Jan 27, 2017, Jan 29, 2017, Feb 17, 2017, Feb 22, 2017, Feb 23, 2017, Mar 18, 2017, Mar 21, 2017, Mar 22, 2017, Nov 15, 2017, Nov 17, 2017, Dec 20, 2017, Dec 21, 2017, Dec 26, 2017, Dec 30, 2017, Jan 6, 2018, Jan 6, 2018, Jan 9, 2018, Jan 12, 2018, Jan 13, 2018 and Jan 14, 2018
Telescope:
Planewave CDK 17
Focal Length:
2924 mm
F-Ratio:
F/6.8
Mount:
Astrophysics 1100GTO
Camera:
FLI PL 16803
Image Scale:
1.27 arcseconds/pixel
Imaging Software:

ACP

Processing Software:

Adobe Photoshop

PixInsight 1.8


Exposure Detail

Filter Filter Brand Bin Qty Exposure
L Astrodon 2x 27 1200
R Astrodon 2x 25 1200
G Astrodon 2x 27 1200
B Astrodon 2x 25 1200
Ha Astrodon 2x 30 1200


Total Exposure Time

44 hours, 40 minutes

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