Melotte 15 - The Heart of the Heart (JohnAdastra)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: IC 1805 · LBN 654 · LBN 655 · LDN 1367 · LDN 1368 · LDN 1369 · Sh2-190

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Melotte 15 - The Heart of the Heart

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Melotte 15 - The Heart of the Heart

Melotte 15 is a collection of interstellar clouds and young massive hot stars located about 1.5 million light years from earth. Plentiful radiation from these stars causes emission radiation from the ample hydrogen, oxygen and sulfur atoms located within this gaseous nebula. This region is often called the Heart of the Heart, as it centrally located within IC 1805, the well know Heart Nebula in Cassiopea. This image was cropped from a full frame image of the Heart Nebula located on my other gallery page:

IC 1805 Heart Nebula in Hubble Palette ( JohnAdastra ) - AstroBin

Despite a deep zoom in, the structural features held up fairly well to produce the detail shown above. See other page for acquisition details.

Northeast Imagers
Broadband under Bortle 7/8/9
LVAAS Astroimaging
NJ/NY/PA Imagers
Narrowband imaging
Suburban Astrophotography
PixInsight Addicts
Nebula Photos Monthly Challenge
Light Polluted skies

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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
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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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Distribution of data sources

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	Image of the day	Top pick	Top pick nominations	Total submitted
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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	5448381
PixInsight job	TT6TGHTED4JD866A7ZS1CP8P9TUFC75G
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	02h33m37s.99
RA (top/left)	02h35m43s.28
RA (top/right)	02h30m39s.41
RA (bottom/right)	02h31m35s.62
RA (bottom/left)	02h36m33s.70

Dec (center)	+61°21′33″.6
Dec (top/left)	+61°44′51″.3
Dec (top/right)	+61°39′13″.4
Dec (bottom/right)	+60°58′10″.6
Dec (bottom/left)	+61°03′40″.7

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Melotte 15 - The Heart of the Heart

Melotte 15 - The Heart of the Heart

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Image Index:

Contribution Index (beta):

Melotte 15 - The Heart of the Heart

Melotte 15 - The Heart of the Heart

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