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Abell 21 | by Zlatko Orbanic
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Abell 21

Abell 21 or PN A66 21 (SHO)

 

Ritchey-Chrétien Astrograph 10''

Atik 414 ex

Pose: 27x600'' - H-alpha

7x600'' - OIII

3x 600'' SII

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Uploaded on December 7, 2018