LDN 1251 (Gary Imm)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep)

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LDN 1251

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LDN 1251

This object is a shapely dark dust cloud in the constellation of Libra. The Lynds Dark Nebulae are named after US astronomer Beverly Turner Lynds who published a catalog of 1802 dark nebulae in 1962, the year I was born. I like this statement from her paper - "In order to facilitate the computation of the galactic co-ordinates and the statistical analysis of the clouds, each entry in the table was entered on IBM punched cards." I experienced the tail end of the infamous punch card era, and I have an appreciation for her work that I wouldn't have otherwise.

The dust is reflecting the light of nearby bright stars as well as obscuring many of the background stars. I love the curving, unusual shape of this nebula. As with most dark nebulae, little information is available on this object. Several fuzzy white galaxies can be seen through the edges of the nebula.

ZWO ASI1600MM/QHY163M
Takahashi Refractors
The refractors!
Cloudy Nights

Dark Nebulae
LDN Catalog
Reflection Nebulae

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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
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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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Extremely wide field
Star trails
Northern lights
Noctilucent clouds
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Distribution of data sources

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	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	2892646
PixInsight job	CDWVA3PGWHC7R9ZKH1H0RBQ9M8JS77VR
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	22h30m08s.72
RA (top/left)	22h23m34s.58
RA (top/right)	22h43m53s.20
RA (bottom/right)	22h37m26s.72
RA (bottom/left)	22h16m03s.51

Dec (center)	+75°11′30″.1
Dec (top/left)	+74°23′27″.6
Dec (top/right)	+74°58′39″.9
Dec (bottom/right)	+75°58′50″.0
Dec (bottom/left)	+75°21′15″.0

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LDN 1251

LDN 1251

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LDN 1251

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