Comet 104 P/Kowal 2

97/12/30

19:20:42
-
19:34:30

2 x 180 sec
+
2 x 300 sec

120 mm refractor
f / 5

Starlight SX

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19' x 20'

streamer right of bright star is artefact of ccd camera

processing with MIRA A/P:
bias
dark
flat
register
combine (sum)
write TIFF

processing with Photoshop:
pixel rectification
log scaling
clipping