Messier 80. NGC 6093

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Messier 80 is a bright, compact and beautiful globular cluster in the constellation Scorpius. It has the same angular size and distance (hence the same spatial size) as M68 but its magnitude is +7.32, a full two magnitudes brighter than M68. M80 is clearly more compact than M68, having about twice the number of stars (200,000) and shows a great deal of Blue Stragglers (stars that have “got bluer” and hence, “younger” due to the accretion of mass, in their late evolutionary stages, from other close, neighboring stars). In this cluster, also a significant number of neutron stars have been detected.


Additional Information


Name(s): Messier 80, M80, NGC 6093

Type: Globular Cluster

RA:  16h 17m 01.5s

Dec: -22º 58’ 26”

Constellation: Scorpius

Size (arcmin): 11 arcmin

Magnitude: +7.32

Distance: 33,000 ly


Date: 2019-05-24 to 2019-05-26

Location:, SSO near Coonabarabran, NSW Australia

Size (arcmin): 37×37 arcmin

Telescope: 20” f/6.8 Reflector

Camera: SBIG STX16803 (4096x4096pix)

Guiding: Astrodon MonsterMOAG off-axis guider

Total exposure: 6.3 hours (L: 110 min; RGB: 4h 30m)

Processing: CCDStack, Photoshop CC 2020



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