Hemisphere:  Northern  ·  Contains:  M 78  ·  NGC 2064  ·  NGC 2067  ·  NGC 2068  ·  NGC 2071
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M 78 NGC 7021 and Barnard's Loop, 


M 78 NGC 7021 and Barnard's Loop
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M 78 NGC 7021 and Barnard's Loop

Technical card

Imaging telescopes or lenses: Astrotech 92 Triplet AT92mm f/5.5

Imaging cameras: ZWO ASI071MC PRO CMOS OSC

Mounts: Orion Azeq Atlas pro

Guiding telescopes or lenses: ASTRO TECH AT66ED Guiding

Guiding cameras: Orion Starshoot Autoguider

Focal reducers: Astro Tech Field flattener

Software: PixInsight  ·  Stark Labs pHD guiding PHD2  ·  EQMOD, Stellarium, Stellarium Scope, PHD, Backyard EOS, Astro Tortilla Nebulosity 4

Filters: Zwo Filter Drawer  ·  Optolong UV-IR

Accessory: Thousand Oaks Dew Controller  ·  Pegasus Astro Dual Motor Focus Controller Cube focuser

Dates:Jan. 5, 2021Jan. 12, 2021

Frames:Optolong UV-IR: 112x180" (gain: 90.00) -10C

Integration: 5.6 hours

Darks: ~30

Flats: ~20

Bias: ~50

Avg. Moon age: 24.98 days

Avg. Moon phase: 30.42%

Bortle Dark-Sky Scale: 4.00

Basic astrometry details

Astrometry.net job: 4149545

RA center: 5h 47' 7"

DEC center: +0° 17' 27"

Pixel scale: 0.968 arcsec/pixel

Orientation: 90.019 degrees

Field radius: 1.567 degrees

Resolution: 9708x6451

Locations: Picket Post Bortle 4, Superior, Arizona, United States

Data source: Traveller


M78 is a beautiful reflection nebula in Orion. It is the brightest reflection nebula in the sky, according to Sky Safari. It lies 1600 ly away. NGC 2071 to its left is also a reflection nebula..It lies 550 ly. A small portion of Barnard's Loop appears in the left portion of the image, emitting its red Ha gas. In the upper right corner you can see the blue rays of light from the nearby star Alnitak, a blue super giant. It is 1 degree outside of the frame!
I had a lot of fun with a couple of my Astronomy friends collecting this data over two evenings from the dark site!




Sky plot

Sky plot


M 78 NGC 7021 and Barnard's Loop,