Sh2-101 " The Tulip Nebula in Cygnus." HOO, HHOO 2 pane mosaic. (Pat Rodgers)

Sh2-101 " The Tulip Nebula in Cygnus." HOO, HHOO 2 pane mosaic.

Although the Tulip would fit into a single frame it would fill it leaving nothing for a contrast, hence the second pane. The extra panel also allows the inclusion of Cygni X-1 a known black hole that is leeching the mass from HDE 226868 a super blue giant around 40 times the size of our Sun, with 400,000 times the luminosity. The x-ray emissions from the black hole have created a bow shock wave just visible on the right hand side of the image. More data will need to be garnered for it to become more visible. The star is pointed out in the inset in image 3.

I'll add to this in any clear spells during the short summer nights. Hopefully when the Moons new for some more O3 and S2.

B

Description: H HO O the green channel is a 40/60 blend.

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C

Description: The location of HDE226868 and the region of Cygni X-1

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D

Description: Now 8 hours per panel. With SII added to the Ha 50/50 in the red channel. OIII and Ha in the green channel 85/15. OIII in the Blue 100%

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E

Description: This is an enhanced luminance. It's the Ha with added OIII and SII. The 2 panels have 21hours total data.

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F

Description: Final 2 pane mosaic with the SII added to the Ha at 50/50 in the red channel and Ha added to the OIII at 15% in the green channel. OIII is 100% in the blue channel.

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G

Description: Had another play around with the tone mapping. A different colour scheme.

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H

Description: Had another go at processing this old data. Finally feel I'm getting to grips with the technique.

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I

Description: A crop of H.

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J

Description: A H HO O image using the formula on the coldestnights webpage.

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Status	Advanced success
Started	...
Astrometry.net job	2241975
PixInsight job	HTV16CYC3XJHXYBPECYAHL8KHZTGI6QK
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	19h59m37s.49
RA (top/left)	20h00m56s.95
RA (top/right)	19h57m43s.50
RA (bottom/right)	19h58m18s.78
RA (bottom/left)	20h01m31s.23

Dec (center)	+35°21′39″.10
Dec (top/left)	+35°40′07″.9
Dec (top/right)	+35°29′31″.8
Dec (bottom/right)	+35°03′08″.6
Dec (bottom/left)	+35°13′42″.0

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