Stephan's Quintet & Deer Lick Group - 2021-10-13 (BensAstroStuff)

Celestial hemisphere: Northern · Constellation: Pegasus (Peg) · Contains: NGC 7317 · NGC 7318 · NGC 7319 · NGC 7320 · NGC 7331 · NGC 7333 · NGC 7335 · NGC 7336 · NGC 7337 · NGC 7338 · NGC 7340 · Stephan's Quintet

Stephan's Quintet & Deer Lick Group - 2021-10-13

First light on new camera (ZWO ASI533 Pro). Humidity was miserable and the transparency was below average. Guide scope dew caused many tracking issues. Even the primary mirror dewed up. Only 67 subs out of 120 were usable. Camera is pretty amazing. Cheap mount continues to surprise me with how well it tracks, but I notice I need to keep the balance heavy on the east side for best results. This means I can't automatically meridian flip... unless I can figure out a way to adjust the balance automatically after the flip. Getting dew heaters seems to be more important right now. This is not the first night nearly completely ruined by dew.
Also, I got bit by ZWO's default white balance settings. PSA: set WB_B & WB_R each to 50. 95 and 52 are entirely inappropriate defaults, and any setting other than 50 means the image is not actually RAW any more. This is an issue with ZWO's SDK, apparently.

Name of Objects: Stephan's Quintet & Deer Lick Group
Image Type: RGB
Exposure: 67*120sec
Date: 10/13/2021
Bortle: Class 5

Gear:
Telescope: Orion 150mm/750mm Newtonian (Started life as a Starblast 6)
Mount: Orion Skyview Pro with Goto Upgrade
Tracking: ZWO ASI120MM-mini + Orion 50mm
Main Camera: ZWO ASI533 Pro @ -15c
Filter: SVBony UHC 1.25"

Software & procedure:
Kstars/Ekos + Indi on NUC for mount control, guidance, and image acquisition. Accessed via NoVNC in web browser.
Siril for stacking, color correction, initial histogram stretch.
Gimp for final histogram tweaking and cropping.

LVAAS Astroimaging
FriendlyCosmos

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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
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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
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Star trails
Northern lights
Noctilucent clouds
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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	5105046
PixInsight job	C6E51PHVZ4OEOQFA6PVTDSV2R1R2ET4Z
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	22h36m40s.37
RA (top/left)	22h37m22s.56
RA (top/right)	22h39m00s.90
RA (bottom/right)	22h35m57s.77
RA (bottom/left)	22h34m20s.40

Dec (center)	+34°11′49″.7
Dec (top/left)	+33°42′48″.9
Dec (top/right)	+34°20′30″.9
Dec (bottom/right)	+34°40′48″.9
Dec (bottom/left)	+34°02′58″.4

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Stephan's Quintet & Deer Lick Group - 2021-10-13

Stephan's Quintet & Deer Lick Group - 2021-10-13

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Stephan's Quintet & Deer Lick Group - 2021-10-13

Stephan's Quintet & Deer Lick Group - 2021-10-13

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