Sadr and Nebulosity in Cygnus (Stephen Migol)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: 37 gam Cyg · B347 · HD193426 · HD193889 · HD193946 · HD194194 · HD194241 · HD194279 · HD194558 · HD194576 · HD194630 · HD194649 · HD194670 · HD194685 · HD194720 · HD194789 · HD194908 · HD195150 · HD195213 · HD195230 · HD195255 · HD195339 · HD228851 · HD228873 · HD228874 · HD228875 · HD228882 · HD228896 · HD228903 · HD228904 · And 85 more.

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Sadr and Nebulosity in Cygnus

Link: https://flic.kr/p/oZnGK7

Powered byPixInsight

Sadr and Nebulosity in Cygnus

Link: https://flic.kr/p/oZnGK7

The nebulosity in Cygnus around the bright star Sadr, as seen in the back yard. Combination of Ha data and RGB data from the Pentax K10D camera.

New subexposure duration and ISO setting used with the same Pentax camera. Now using 10 minute subs at 200 ISO. This is to reduce the effect of flexure on the results. Needed to create a new library of calibration files to support this change.

Also, the camera now is cooled with an aggressive stack of Peltier devices which are providing 20C of temperature drop via water cooling.

Ha data gathered from September 10 & 11 with 52 subexposures of 10 minutes at 200 ISO.

RGB data gathered from September 15 & 16 with 25 subexposures of 10 minutes at 200 ISO.

Total integration time was 12 hours and 50 minutes.

Calibrated in Maxim 5.24 with the new library with 36 flats for each filter, 64 bias, and 18-20 darks. Because the Ha filter made getting good flats to be a challenge, Maxim was set to use Median flats vs Bayer Planes.

Each filter group was stacked in DSS then the results were brought into PixInsight for registration to each other and combining via the NBRGB script.

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	367473
PixInsight job	3JFCOXC32DMGOF67ERARK9KQUBJ8QZV0
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	20h23m51s.92
RA (top/left)	20h18m34s.50
RA (top/right)	20h29m12s.72
RA (bottom/right)	20h29m16s.20
RA (bottom/left)	20h18m25s.12

Dec (center)	+40°15′45″.8
Dec (top/left)	+39°35′55″.8
Dec (top/right)	+39°36′47″.6
Dec (bottom/right)	+40°54′41″.4
Dec (bottom/left)	+40°53′47″.3

Image Index:

Contribution Index (beta):

Sadr and Nebulosity in Cygnus

Sadr and Nebulosity in Cygnus

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Image Index:

Contribution Index (beta):

Sadr and Nebulosity in Cygnus

Sadr and Nebulosity in Cygnus

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

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