Tulip Nebula Sh2-101 HaHSO (Pam Whitfield)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: B144 · HD189085 · HD189148 · HD189474 · HD189528 · HD190113 · HD190114 · HD190468 · HD226662 · HD226663 · HD226676 · HD226677 · HD226709 · HD226721 · HD226722 · HD226731 · HD226743 · HD226744 · HD226781 · HD226803 · HD226804 · HD226825 · HD226826 · HD226836 · HD226847 · HD226866 · HD226867 · HD226868 · HD226888 · HD226889 · And 62 more.

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Tulip Nebula Sh2-101 HaHSO

Revision title: SHO with HSO stars - reprocessed from scratch in Pixinsight with NSG and x2 drizzle

Powered byPixInsight

Tulip Nebula Sh2-101 HaHSO

Revision title: SHO with HSO stars - reprocessed from scratch in Pixinsight with NSG and x2 drizzle

A few decent nights in a row seemed a good occasion to go after something more unusual.

The Tulip was collected in 2-target sessions with the Heart nebula so the reducer was used for both. To allow me to get a better crop this one is drizzled and stacked in HaHSO (tulips should be red in my book!).

I'm not 100% happy with this image so I'll probably revisit the processing at some point - the background never seems to look right to me at least.

20x Ha 600s 1x1

21x Oiii 600s 1x1

19x Sii 600s 1x1

Original
B
C
Final
D

B

Description: I've struggled to get this one to look pleasing to my eye at least. This version isn't perfect but is an improvement I think.

Uploaded: ...

C

Title: SHO-based reprocess

Description: Used this data to play with the new NoiseXTerminator plugin and got something closer to what I wanted.... noise-wise at least

Uploaded: ...

D

Title: SHO with HSO stars - reprocessed from scratch in Pixinsight with NSG and x2 drizzle

Description: It's taken me 3 years but I might have finally wrung about as much out of this data as there is to give! Reprocessed from scratch in PI using NSG and x2 drizzle. NSG meant the fainter diffuse stuff in the background wasn't sacrified in gradient removal. First step after SHO combination of the starless data was Bill Blanshan's normalization script which gave a really nice starting point for tweaking from there on. Stars were combined as HSO as the result is a closer approximation to real star colour balance without actual RGB data.

Uploaded: ...

Sharpless2 Objects
Women Astrophotographers
Yorkshire Astro Imaging
QHY Users Group
Narrowband imaging
UK Astro-Imaging

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Status	Advanced success
Started	...
Astrometry.net job	6500626
PixInsight job	WU1C9NLUU05Q1EIGFAK7PBH69E7AZPRG
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	20h00m19s.52
RA (top/left)	20h03m41s.20
RA (top/right)	19h56m03s.77
RA (bottom/right)	19h57m01s.17
RA (bottom/left)	20h04m31s.88

Dec (center)	+35°17′51″.0
Dec (top/left)	+36°00′52″.8
Dec (top/right)	+35°46′40″.8
Dec (bottom/right)	+34°34′25″.6
Dec (bottom/left)	+34°48′28″.0

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Tulip Nebula Sh2-101 HaHSO

Revision title: SHO with HSO stars - reprocessed from scratch in Pixinsight with NSG and x2 drizzle

Tulip Nebula Sh2-101 HaHSO

Revision title: SHO with HSO stars - reprocessed from scratch in Pixinsight with NSG and x2 drizzle

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Tulip Nebula Sh2-101 HaHSO

Revision title: SHO with HSO stars - reprocessed from scratch in Pixinsight with NSG and x2 drizzle

Tulip Nebula Sh2-101 HaHSO

Revision title: SHO with HSO stars - reprocessed from scratch in Pixinsight with NSG and x2 drizzle

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Acquisition details

Description

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C

D

Sky plot

Histogram

In these public groups

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