M 21
Messier 21 or M21, also designated NGC 6531, is an open cluster of stars in the north-east of Sagittarius.
SPECIFICATIONS
Telescope
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Telescope
AUS-2(Takahashi FSQ-106ED)
Camera
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Location
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Location
Yass, NSW 2582, Australia
Date of observation
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Date of observation
19 Jun 2021
Filters
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Processing
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Processing
Stellaimage9 , Photoshop CS6