LBN 438 Dark Nebula (Benjamin Law)

Celestial hemisphere: Northern · Constellation: Lacerta (Lac)

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LBN 438 Dark Nebula

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LBN 438 Dark Nebula

I have spent about a month and a half on this challenging target from my Bortle 7/8 backyard (~23 hours of data in total)
LBN 438 Dark Nebula in HaLRGB. Data were collected over many nights from July to August 2022.

LBN 438 is a dusty nebula within our own galaxy, visually it is located in the Lacerta constellation. It is illuminated by interstellar radiation known as Extended Red Emission (ERE). ERE is a relatively recent discovery (1975) and is a photo-luminescence process whereby hydrogenated amorphous carbon is illuminated by interstellar photons in the 500 to 1000nm spectral range. Hydrogen-alpha signal is very weak but it does add some reddish color to the rim of this dark nebula.

Scope: Explore Scientific 8" Carbon Fibre f/4 Newtonian.
Camera: ASI294MM-P (for L and Ha), ASI294MC-P (for RGB)
Exposure: 241x180s L, 76x180s RGB, 85x300 Ha (Total ~23 hours)
Bortle Scale: 7 - 8, Southern Ontario, Canada

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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	Basic success
Started	...
Astrometry.net job	6280957
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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LBN 438 Dark Nebula

LBN 438 Dark Nebula

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LBN 438 Dark Nebula

LBN 438 Dark Nebula

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