Eastern Veil Nebula HOO palette with RGB stars (竞霄 Jing-Xiao)

Eastern Veil Nebula HOO palette with RGB stars

This is my first attempt of a 20+ hours project. Final image 2x2 binned before uploading.

I gather 21.3 hours of integration time over 11 nights, before I decided that I don't like the framing (should've included more filament to the bottom left, and this frame doesn't fit in a bigger mosaic) and stopped getting more data.

The nebula layer was constructed from 20hrs of HOO data mapped to RGB, then a SCNR filter with Maximum Mask method was applied in Siril. This created the red-orange-white-blue color scheme. I removed the stars from the HOO palette using starnet v2 and replaced them with RGB stars.

This image also features the mysterious interstellar "contrail" (also called as "Warp Trail") first noticed by some amateur astronomers (see Boyang's twitter thread https://twitter.com/byspto/status/1451982660193161217 for more info), the trail is located at bottom left of the image.
The true nature of this collimated Ha structure/contrail is still unknown.

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	n/a
Started	n/a
Astrometry.net job	n/a
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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