Messier 37. NGC 2099

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Messier 37 is a rather old open cluster located about 4,500 light years away in the constellation Auriga. M37 is a rich cluster (around 500 stars) as well as also large (it occupies about 20 light years, 24 arcmin). It lies in the “antipodal direction” (meaning “opposite”) of the galactic center. Over a dozen red giants can be found in M37.


Additional Information


Name(s): Messier 37. M37. NGC 2099

Type: Open Cluster

RA:  05h 52m 17s

Dec: +32º 32’ 54”

Constellation: Auriga

Size (arcmin): 24×24 arcmin

Magnitude: +5.6

Distance: 4,500 light years


Date: 2021-10-04

Location: Curiosity2 Observatory, New Mexico Skies, Mayhill, NM, USA

Size (arcmin): 31×31 arcmin

Telescope: 24” (61 cm) f/6.5 Reflector

Camera: FLI PL16803 (4096x4096pix)

Guiding: Astrodon MonsterMOAG off-axis guider

Total exposure: 3 hours (1 h each RGB)

Processing: CCDStack, Photoshop CC 2022

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