Ou4 and SH2-129 The Squid in the Flying Bat nebula (Jason Coon)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: HD200205 · HD201063 · HD201344 · HD201429 · HD202214 · HD202380 · HD203534 · HD203551 · HD203574 · HD203627 · HD203695 · HD204150 · HD239582 · HD239605 · HD239618 · HD239626 · HD239662 · LBN 441 · LBN 445 · LBN 449 · LBN 453 · Sh2-129

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Ou4 and SH2-129 The Squid in the Flying Bat nebula

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Ou4 and SH2-129 The Squid in the Flying Bat nebula

This is probably one of the most challenging targets I've tried so far, for several reasons. It's very faint, so even with a RASA at f/2 I had to use 300s exposures just to bring out any detail of the squid. And due to local trees, I only had about a two-hour window on it each night. I think I restarted my workflow in PixInsight at least half a dozen times. It's very easy to start "over processing" in an effort to lift the faint detail. Taking breaks to walk away for a few hours to relook with fresh eyes helped. Maybe I'll try for more time someday if I can get the trees trimmed back.

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Status	Advanced success
Started	...
Astrometry.net job	6007551
PixInsight job	I6ZYFQS8ZUSGTWTRXHTDWUU6JIPHKKZS
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	21h11m54s.56
RA (top/left)	21h25m26s.21
RA (top/right)	20h58m19s.46
RA (bottom/right)	20h59m13s.47
RA (bottom/left)	21h24m36s.80

Dec (center)	+59°56′35″.7
Dec (top/left)	+61°00′56″.3
Dec (top/right)	+61°00′34″.4
Dec (bottom/right)	+58°47′07″.3
Dec (bottom/left)	+58°47′57″.7

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Ou4 and SH2-129 The Squid in the Flying Bat nebula

Ou4 and SH2-129 The Squid in the Flying Bat nebula

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Ou4 and SH2-129 The Squid in the Flying Bat nebula

Ou4 and SH2-129 The Squid in the Flying Bat nebula

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