Celestial hemisphere:  Northern  ·  Constellation: Gemini (Gem)
Abell 21 3nm Ha, Salvatore Giambruno
Abell 21 3nm Ha
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Abell 21 3nm Ha

Abell 21 3nm Ha, Salvatore Giambruno
Abell 21 3nm Ha
Powered byPixInsight

Abell 21 3nm Ha

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Description

16-2/3 hours 3nm Ha data.

11.3 Mag surface brightness.

Very dim object.

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Abell 21 3nm Ha, Salvatore Giambruno