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Messier 47 is an open cluster that can be found one degree West of M46, but M47 is not as rich in stars (about 50 stars, one tenth of M46), is younger (78 million years old) and lies much closer to us (1600 light years). The brightest star in the cluster (HD 60855) is a B2Ve C-Type star, located near the bottom of the image. The cluster also contains two red giants (on the right side of the image), HD 61114 and HD 60898, both about 200 times more luminous than our Sun.
Additional Information
Object
Name(s): Messier 47. M47. NGC 2422
Type: Open Cluster
RA: 07h 36m 34s
Dec: -14º 29’ 03”
Constellation: Puppis
Size (arcmin): 25×21 arcmin
Magnitude: +4.4
Distance: 1600 ly
Image
Date: 2020-12-24
Location: iTelescope.net, SSO near Coonabarabran, NSW Australia
Size (arcmin): 35×35 arcmin
Telescope: 17” f/6.8 Reflector
Camera: FLI PL16803 (4096x4096pix)
Guiding: Astrodon MonsterMOAG off-axis guider
Total exposure: 3 hours (L: 1h; RGB: 2h)
Processing: CCDStack, Photoshop CC 2021