Nebula left behind by the star - Sh2-174 - Valentine's Rose HOO (Jakub Szyma)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: LBN 598 · PK120+18.1 · Sh2-174

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Nebula left behind by the star - Sh2-174 - Valentine's Rose HOO

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Nebula left behind by the star - Sh2-174 - Valentine's Rose HOO

Hello Everyone

There are few specials about this object. It is the one of the oldest known planetary nebulas. Quite big, most north Sharpless catalogue object. And it is travelling in th egalaxy slower than it's star - white dwarf, probabkly due to friction of interstellar gas, so the star has in fact escaped it already.

Taken from my backyard, Bortle 5+ in March with the set up adjusted for the spring and galaxy season - RASA11 with 2.4nm pixel of ASi 183MM Pro. I already forgot the pain of amp glow calibration and thi was a tough battel, I had to ask a fried of mine for help to make it usable. But finally - worked I suppose.

What is interesting apart from the center are very subtle hydrogen fibers towards the left upper corner.
If you have any comment - you are welcome

Final
Original
B

B

Description: This is the second version, more agressive in which it is better visible what is going on in the background, but I am affraid it lost some of it's natural look to it. Will you advice which one is better? Not decided to mark it as final though.

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Celestron RASA
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Status	Advanced success
Started	...
Astrometry.net job	5677539
PixInsight job	16FRIG9R4U4ZGPER262W8WMR4XE9MJZE
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	23h46m31s.89
RA (top/left)	23h57m28s.58
RA (top/right)	23h54m43s.96
RA (bottom/right)	23h34m19s.22
RA (bottom/left)	23h39m21s.70

Dec (center)	+80°57′21″.7
Dec (top/left)	+80°26′26″.1
Dec (top/right)	+81°33′28″.7
Dec (bottom/right)	+81°26′50″.8
Dec (bottom/left)	+80°20′39″.8

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Nebula left behind by the star - Sh2-174 - Valentine's Rose HOO

Nebula left behind by the star - Sh2-174 - Valentine's Rose HOO

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Nebula left behind by the star - Sh2-174 - Valentine's Rose HOO

Nebula left behind by the star - Sh2-174 - Valentine's Rose HOO

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