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José J. Chambó

Location of Photo:

Siding Spring, Australia

Date/Time of photo:

2021 March 27, 19:01 UT


Telescope Planewave 20" CDK f/4.4 & Camera FLI PL09000


Comet C/2020 R4 (ATLAS) on March 27, 2021, my first image of this comet after eleven failed attempts due to the storms hit Australia in March. Currently at magnitude 9 it could reach magnitude 8 by the end of April. The image shows a gasy coma of 6 arcminutes in angular size (275,000 km) with an intense green color indicating a C2 strong emission, with a sharp central condensation and an ionic tail of 5 arcminutes. The field is about 1 square degree centered in the south of the constellation Aquila.




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