Hemisphere:  Southern  ·  Constellation: Monoceros (Mon)  ·  Contains:  M 50  ·  NGC 2323
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            Steven Bellavia
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Technical card

Imaging telescopes or lenses: TS-Optics PHOTOLINE 115 mm F7 triplet apo

Imaging cameras: ZWO ASI533MC Pro

Mounts: Sky-Watcher EQ-6R Pro SynScan

Guiding telescopes or lenses: The Bellavia Basic 50mm f/6 guidescope

Guiding cameras: ZWO ASI 290MC

Software: IDEIKI AstroPhotography Tool (APT)  ·  Stark Labs Nebulosity 4.2  ·  Annie's Astro Actions V7  ·  SharpCap Pro 3.2  ·  PHD2 Guiding

Filters: Astronomik L2 UV/IR Cut

Accessory: TS-Optics TS FLAT 2,5"

Dates:Jan. 2, 2021

Frames:Astronomik L2 UV/IR Cut: 47x20" (gain: 100.00) -5C bin 1x1

Integration: 0.3 hours

Darks: ~30

Flats: ~30

Flat darks: ~30

Avg. Moon age: 18.07 days

Avg. Moon phase: 88.13%

Bortle Dark-Sky Scale: 4.00

Mean SQM: 18.00

Mean FWHM: 4.00

Temperature: 3.00

Basic astrometry details

Astrometry.net job: 4156697

RA center: 7h 2' 45"

DEC center: -8° 22' 40"

Pixel scale: 1.519 arcsec/pixel

Orientation: 274.615 degrees

Field radius: 0.573 degrees

Resolution: 1920x1920

Data source: Traveller


Messier 50 (NGC 2323), is an open cluster of stars in the constellation Monoceros. It was recorded by G. D. Cassini before 1711 and independently discovered by Charles Messier on April 5, 1772 while observing Biela's Comet. It is sometimes described as a 'heart-shaped' figure or a blunt arrowhead.
M50 is at a distance of about 3,000 light-years away from Earth and has 508 confirmed stars, with a total of 285 solar masses. It is 140 million years old.



  • M50, 


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  • Final


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Sky plot

Sky plot




            Steven Bellavia