LBN 557 or SH2-163 : the false Tulip nebula - HOO (Andreas Zeinert)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: Sh2-163

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LBN 557 or SH2-163 : the false Tulip nebula - HOO

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LBN 557 or SH2-163 : the false Tulip nebula - HOO

This nebula is rarely imaged. It is quite shy. Not very far from the famous Bubble nebula. So I wanted to give him a chance. There have been very few grey levels after processing, about 35 (!). So you are warned. Do not try this at home with your kids. ;-)

Nine hours of exposure and the 4.5 h of OIII among them were almost useless. There is an extremely faint O signal in the core. You would need a fast instrument and a crazy exposure time to get something out of it. I am sure that there are some passionate people here who would give it a try with a f/3 and 30h. I needed to look at the HEASARC catalogue to identify the nebula which I first found on Aladin.

It is funny that the nebula shape reminds the Tulip nebula. Enjoy !

Original
Final
B

B

Description: Dehazing to enhance a bit the contrast

Uploaded: ...

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Status	Advanced success
Started	...
Astrometry.net job	4085990
PixInsight job	DK8MYRW3QQTUCXP1PE2AH36CO4VUJGQW
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	23h33m22s.39
RA (top/left)	23h36m33s.44
RA (top/right)	23h36m17s.55
RA (bottom/right)	23h30m06s.30
RA (bottom/left)	23h30m32s.37

Dec (center)	+60°47′03″.2
Dec (top/left)	+60°20′00″.3
Dec (top/right)	+61°15′52″.10
Dec (bottom/right)	+61°13′46″.7
Dec (bottom/left)	+60°17′59″.3

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LBN 557 or SH2-163 : the false Tulip nebula - HOO

LBN 557 or SH2-163 : the false Tulip nebula - HOO

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LBN 557 or SH2-163 : the false Tulip nebula - HOO

LBN 557 or SH2-163 : the false Tulip nebula - HOO

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