Cygnus Region in H-alpha (Dan)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: 30 Cyg · 31 Cyg · 31 omi01 Cyg · 32 Cyg · 32 omi02 Cyg · B345 · B346 · Cygnus · HD188209 · HD188252 · HD188360 · HD188439 · HD188482 · HD188537 · HD188666 · HD188712 · HD188853 · HD188854 · HD189013 · HD189160 · HD189256 · HD189504 · HD189636 · HD189684 · HD190042 · HD190045 · HD190065 · HD190149 · HD190165 · HD190254 · And 134 more.

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Cygnus Region in H-alpha

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Cygnus Region in H-alpha

I've been interested in this region of Cygnus since last year, but never got a chance to image it because the weather was so awful last summer. I'm surprised it is not imaged more often; Nico Carver has taken some really nice images of it but not many other people. I plan to incorporate RGB data into this and possibly some OIII, but that will be tough because my location is so light-polluted.

This was also a chance for me to test out my new Astronomik 12nm MaxFR filter. I'm very impressed! The data looks just as good as my old Astrodon 3nm Ha filter, even with a moon in the sky and the severe light pollution of Central New Jersey.

This was also my second time using my new Rokinon 135 lens. There is some off-axis coma, but not enough for me to care much. The on-axis stars are not perfect either. Although I'd like better on-axis stars, I think this lens does a good job considering it is relatively inexpensive. The need for a belt drive is also a drawback, as rotating the sensor requires detaching the belt and loosening the tube rings to rotate the lens. I think the solution will be to mark the CFZ with a piece of tape and rotate the lens to the desired position before attaching the belt drive. Unfortunately this will mean attaching the belt in the field rather than indoors.

Acquisition details:
117 subexposures at 60s each
Rokinon 135mm lens at f/2
ASI294MM at gain 0, 1x1 binning (2.3 micron pixels)
Astronomik 12nm MaxFR H-alpha filter
Rainbow Astro RST-135
ASI290mm guide camera
ZWO Mini Guide Scope
Bortle 8

Acquisition in SGP and processing in Pixinsight

Original
Final
B

B

Description: Star reduction and contrast/histogram enhancements

Uploaded: ...

Please note: The following tables are updated every 24 hours.

Distribution of astrophotographers

This table shows the number of distinct astrophotographers who have been assigned and IOTD/TP award compared to the total number of images awarded.
	Distinct awarded users	Total awarded images
Image of the day
Top picks
Top pick nominations

Distribution of subject types

This table shows the distribution of awards per subject type, compared to the popularity of images of that subject type.
	Image of the day	Top pick	Top pick nominations	Total submitted
Deep sky
Solar system
Extremely wide field
Star trails
Northern lights
Noctilucent clouds
Landscape

Distribution of data sources

This table shows the distribution of awards per data source, compared to the popularity of images acquired from that data source.
	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
Traveller
Own remote observatory
Amateur hosting facility
Public amaeteur data
Professional, scientific grade data
Mix of multiple sources
Other
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.
Promotions by Submitters When 3 distinct Submitters promote the image, it moves on to the next stage of the process: evaluation for Top Pick status. This requirement, in addition to anonymization of images and distribution to only a subset of them, prevents biases and ensures that the best images are selected.
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	5792854
PixInsight job	8O2B7MRXS28ZWTVEB3XCMR4DO8LKUMZ2
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	20h16m30s.82
RA (top/left)	20h41m54s.12
RA (top/right)	19h51m02s.39
RA (bottom/right)	19h53m37s.96
RA (bottom/left)	20h39m30s.94

Dec (center)	+45°56′41″.6
Dec (top/left)	+48°39′30″.1
Dec (top/right)	+48°37′48″.1
Dec (bottom/right)	+42°54′45″.9
Dec (bottom/left)	+42°56′22″.9

Image Index:

Contribution Index (beta):

Cygnus Region in H-alpha

Cygnus Region in H-alpha

Equipment

Acquisition details

Description

Comments

Revisions

B

Sky plot

Histogram

Image Index:

Contribution Index (beta):

Cygnus Region in H-alpha

Cygnus Region in H-alpha

Equipment

Acquisition details

Description

Comments

Revisions

B

Sky plot

Histogram

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