IC 1805 Heart Nebula Mosaic (Jeff Reitzel)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: IC 1795 · IC 1805 · IC 1824 · LBN 645 · LBN 646 · LBN 647 · LBN 648 · LBN 650 · LBN 654 · LBN 655 · LBN 656 · LBN 657 · LBN 658 · LDN 1356 · LDN 1359 · LDN 1360 · LDN 1361 · LDN 1362 · LDN 1363 · LDN 1364 · LDN 1365 · LDN 1366 · LDN 1367 · LDN 1368 · LDN 1369 · LDN 1370 · LDN 1371 · LDN 1372 · LDN 1373 · NGC 1027 · And 8 more.

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IC 1805 Heart Nebula Mosaic

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IC 1805 Heart Nebula Mosaic

This popular large nebula is located ~7500 light years away and seen in the Constellation Cassiopeia. I started this mosaic project as 2 panels then decided to include data from a couple years ago using the same rig as a third panel. It was a bit of a challenge because the old data fit within the boundaries of the current mosaic but was rotated almost 90 degrees. Call it a learning experience and I may well have made a mess of it. Constructive criticism is always appreciated. A favorite part of mine in large images of this nebula is the tiny bright blue ring just above the top-center of the Heart. Sometimes confused as a galaxy by people in their images, this is actually something much more rare. It is a tiny ring-type planetary nebula known as WeBo1. The central star is a binary pair consisting of a very young white dwarf orbiting a very rare K-Type giant Barium Star. I had never heard of a star like that until researching this project.

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	Advanced success
Started	...
Astrometry.net job	8706432
PixInsight job	PFSAULNH6FVB1SMI4UNKC4G330NQYCFT
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	02h32m14s.60
RA (top/left)	02h42m21s.80
RA (top/right)	02h43m07s.23
RA (bottom/right)	02h21m07s.14
RA (bottom/left)	02h22m19s.41

Dec (center)	+61°16′04″.9
Dec (top/left)	+59°52′41″.3
Dec (top/right)	+62°38′33″.4
Dec (bottom/right)	+62°37′02″.6
Dec (bottom/left)	+59°51′15″.8

Image Index:

Contribution Index (beta):

IC 1805 Heart Nebula Mosaic

IC 1805 Heart Nebula Mosaic

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IC 1805 Heart Nebula Mosaic

IC 1805 Heart Nebula Mosaic

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