Sh2 261 (sreilly24590)

Celestial hemisphere: Northern · Constellation: Orion (Ori) · Contains: HD41997 · LBN 862 · LBN 863 · LBN 864 · LDN 1587 · Sh2-261

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Sh2 261

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Sh2 261

Sh2 161 is located in the constellation Orion so likely looked over for the more infamous M42 and other brighter nebula.

This nebula proved harder to process than I expected but when the telescope was sent back to OGS in Philadelphia after the 24" ASA600 was installed the primary mirror clearly showed the reason for the "diluted" data. The mirror was coated with a very fine dirt that gave less than optimal data. The Ha survived far better but I worked with the data on hand which totaled 18 hours Ha, and 24 hours RGB. Had this been acquired in 2016/2017 it would be a far better image just due to the state of the mirrors.

One issue with remote imaging is lack of physical contact with the equipment so scheduling periodic inspections and having someone onsite that can service the equipment is a big help. That said, it's up to you to see that these things are done. Fortunately with the new telescope it has mirror covers for the primary mirror but is open truss. Trying a skirt on the trusses appears to interfere with the motorized covers. We'll keep a closer eye on this going forward.

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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
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	9551179
PixInsight job	2KBT7X603LZIMIIHMPUP5JMO1XE02U6D
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	06h08m54s.282
RA (top/left)	06h10m05s.454
RA (top/right)	06h07m37s.238
RA (bottom/right)	06h07m43s.297
RA (bottom/left)	06h10m11s.260

Dec (center)	+15°48′40″.00
Dec (top/left)	+16°08′55″.35
Dec (top/right)	+16°07′39″.82
Dec (bottom/right)	+15°28′22″.68
Dec (bottom/left)	+15°29′39″.90

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Sh2 261

Sh2 261

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Image Index:

Contribution Index (beta):

Sh2 261

Sh2 261

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