Tulip Nebula - Sh2-101 (dswtan)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: B144 · Sh2-101

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Tulip Nebula - Sh2-101

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Tulip Nebula - Sh2-101

First test run on the Tulip with new autofocus (ZWO EAF) in NINA and improved color workflow thanks to help on Cloudy Nights (Stelios) and Youtube (Chuck), plus correcting my filter mapping (SIII and OII were previously inadvertently swapped). Just 30 min each filter, and you can *just about* see the Cygnus X-1 bow shock, once you know where to look -- let's get some more photons before I call it... :-)

Original
B
C
Final
D

B

Description: Added another 40x 60s each channel and flats. Helped clean up noise and removed peripheral issues, but the bow shock isn't seemingly clearer.

Uploaded: ...

C

Description: Added another couple of nights and reprocessed calibration and integration in PI rather than my current favorite APP. 3x140x60s = 7hrs total, my longest ever.

Uploaded: ...

D

Description: Final tweak in PS for star reduction - Min 1.2px. Bow shock now acceptably just visible.

Uploaded: ...

Cloudy Nights

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	Distinct awarded users	Total awarded images
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	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
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Unknown

The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

Submitted The date and time when you submitted this image for IOTD/TP consideration.	...
Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
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Promotions by Reviewers When 3 distinct Reviewers promote the image, it moves on to the next stage of the process: evaluation for IOTD status.
Early dismissal Staff members have a lot of images to inspect on a daily basis, and they can dismiss images if they believe they don't meet the requirements for IOTD/TP selection. If an image is dismissed 5 times, it's removed from the process. This streamlines the process and ensures that any bias present in promotions could be overruled by other staff members.

Status	Advanced success
Started	...
Astrometry.net job	3713802
PixInsight job	SSEYG26F9EB4CXORC4HBCYVJ2BCEL4RH
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	19h59m57s.68
RA (top/left)	19h56m24s.15
RA (top/right)	19h56m41s.51
RA (bottom/right)	20h03m28s.18
RA (bottom/left)	20h03m17s.52

Dec (center)	+35°21′03″.6
Dec (top/left)	+36°01′09″.8
Dec (top/right)	+34°37′37″.4
Dec (bottom/right)	+34°40′26″.7
Dec (bottom/left)	+36°04′05″.3

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Tulip Nebula - Sh2-101

Tulip Nebula - Sh2-101

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Image Index:

Contribution Index (beta):

Tulip Nebula - Sh2-101

Tulip Nebula - Sh2-101

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Description

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C

D

Sky plot

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