IC 1805 (Gary Imm)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: HD14328 · HD14510 · HD14552 · HD14558 · HD14695 · HD14794 · HD14817 · HD15069 · HD15238 · HD15239 · HD15250 · HD15382 · HD15522 · HD15557 · HD15558 · HD15570 · HD15629 · HD15785 · HD15851 · HD16183 · HD16410 · HD16429 · HD16506 · HD16626 · HD16799 · HD16894 · HD236966 · HD236989 · IC 1795 · IC 1805 · And 34 more.

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IC 1805

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IC 1805

This emission nebula, nicknamed the Heart Nebula, is located 7500 light years away in the constellation of Cassiopeia at a declination of +61 degrees. The nebula spans 1.5 degrees in our apparent view, which corresponds to an actual width of about 180 light years.

This object is a fantastic mix of bright stars, glowing interstellar gas, and dark dust clouds. In the center of the image are the massive hot stars of a newborn star cluster known as Melotte 15. The stellar winds and radiation of these stars are sculpting the surrounding dust clouds into fantastic shapes and pillars.

There are a few other interesting objects here besides IC 1805. At upper right is the Fishhead Nebula (IC1795), which has interestingly shaped dust lanes cutting through the nebula. And at the center left of the image is the small bright blue planetary nebula WeBo1, first discovered in 1996.

Celestron RASA
Cloudy Nights
ASI 6200 MM Pro
Texas Astronomy
RASA Images
CMOS Imagers

100 of My Favorite images
Emission (Full NB) Nebulae
Orphaned Beauties Catalog (Complete)
Sharpless Catalog (200/313)

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	8033338
PixInsight job	2TY70NH0SFSFAE77GBZ9V4C0DPF5454H
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	02h33m30s.59
RA (top/left)	02h47m27s.21
RA (top/right)	02h19m54s.76
RA (bottom/right)	02h20m29s.50
RA (bottom/left)	02h46m10s.53

Dec (center)	+61°27′23″.7
Dec (top/left)	+62°28′19″.9
Dec (top/right)	+62°32′15″.7
Dec (bottom/right)	+60°21′28″.4
Dec (bottom/left)	+60°17′51″.7

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IC 1805

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IC 1805

IC 1805

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