14 April 2015

Abell 21 - Medusa

By Stefan Schimpf

LZOS 123 & Riccardi Reducer, 554mm F4,5 on EQ-8

ATIK 460 EXm, Astrodon Ha, O3, S2 filters

40x1800s Ha

9x1800s O3 Bin2x2

8x1800s S2 Bin 2x2


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