Daily Archives: January 29, 2015

M42, Orion Nebula



The Orion Nebula (also known as Messier 42, M42, or NGC 1976) is a diffuse nebula situated in the Milky Way south of Orion’s Belt in the constellation of Orion. It is one of the brightest nebulae, and is visible to the naked eye in the night sky. M42 is located at a distance of 1,344 ± 20 light years and is the closest region of massivestar formation to Earth. The M42 nebula is estimated to be 24 light years across. It has a mass of about 2000 times the mass of the Sun. Older texts frequently refer to the Orion Nebula as the Great Nebula in Orion or theGreat Orion Nebula.

Imaging telescopes or lenses: Takahashi TSA 102
Imaging cameras: Starlight Express SXVR-H18
Mounts: Sky-Watcher NEQ6 Pro
Guiding telescopes or lenses: Takahashi TSA 102
Guiding cameras: sx loadstar
Focal reducers: Takahashi TOA/FS Reducer
Software: Sequence Generator Pro,  PHD, Photoshop CS5
Filters: Baader Ha 8.5nm
Accessories: Starlight Xpress USB filter wheel, Baader Planetarium 36mm narrowband filters
Resolution: 3328×2432
Dates: Jan. 13, 2015
Frames: Baader Ha 8.5nm: 10×1800″ -10C bin 1×1
Integration: 5.0 hours
Avg. Moon age: 21.78 days
Avg. Moon phase: 53.86%
RA center: 83.897 degrees
DEC center: -5.291 degrees
Pixel scale: 1.750 arcsec/pixel
Orientation: 106.504 degrees
Field radius: 1.002 degrees
Locations: Home observatory, Valencia, Spain
Author: moonrocks