IC 1805 (the Heart Nebula), IC 1795 (the Fish Head Nebula), and planetary nebula WeBo1 in Cassiopeia, in HaOO/RGB (darkdesertdome)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: IC 1795 · IC 1805 · LBN 645 · LBN 646 · LBN 647 · LBN 648 · LBN 650 · LBN 654 · LBN 655 · LBN 656 · LBN 657 · LBN 658 · 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 896 · PGC 138524 · PGC 2797053 · And 1 more.

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IC 1805 (the Heart Nebula), IC 1795 (the Fish Head Nebula), and planetary nebula WeBo1 in Cassiopeia, in HaOO/RGB

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IC 1805 (the Heart Nebula), IC 1795 (the Fish Head Nebula), and planetary nebula WeBo1 in Cassiopeia, in HaOO/RGB

Although the Heart and Fish Head Nebulae steal the show, don't miss tiny planetary nebula WeBo1 (PN G135.6+01.0) in the background, behind the "atria" of the heart, an unusual planetary nebula with remarkable thin-ring morphology surrounding a central barium star. Although the Heart and Fish Head are popular astrophotography targets (for good reason), WeBo1 doesn't get enough attention! It was only discovered serendipitously in 1995 on a digitized sky survey (see Bond HE, et al. Astronomical Journal 2003;125:260-4). You'll have to zoom into the full-sized version and hunt around to spot it... but it'll be worth your effort.

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	7715662
PixInsight job	THJ3JOI2TM3QW4IA4FAXEJG35ACNHC15
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	02h33m11s.63
RA (top/left)	02h42m45s.46
RA (top/right)	02h36m30s.94
RA (bottom/right)	02h23m03s.92
RA (bottom/left)	02h30m09s.71

Dec (center)	+61°28′19″.3
Dec (top/left)	+60°33′18″.8
Dec (top/right)	+62°53′51″.4
Dec (bottom/right)	+62°20′39″.0
Dec (bottom/left)	+60°02′28″.3

Image Index:

Contribution Index (beta):

IC 1805 (the Heart Nebula), IC 1795 (the Fish Head Nebula), and planetary nebula WeBo1 in Cassiopeia, in HaOO/RGB

IC 1805 (the Heart Nebula), IC 1795 (the Fish Head Nebula), and planetary nebula WeBo1 in Cassiopeia, in HaOO/RGB

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Image Index:

Contribution Index (beta):

IC 1805 (the Heart Nebula), IC 1795 (the Fish Head Nebula), and planetary nebula WeBo1 in Cassiopeia, in HaOO/RGB

IC 1805 (the Heart Nebula), IC 1795 (the Fish Head Nebula), and planetary nebula WeBo1 in Cassiopeia, in HaOO/RGB

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Acquisition details

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