Melotte 15, in the centre of IC 1805 (Jordan Marlière)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: HD15522 · HD15557 · HD15558 · HD15570 · HD15629 · HD15851 · IC 1805 · LBN 654 · LBN 655 · LDN 1366 · LDN 1367 · LDN 1368 · LDN 1369 · LDN 1372 · LDN 1373 · Sh2-190

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Melotte 15, in the centre of IC 1805

Link: https://www.jordanmarliere.com/

Powered byPixInsight

Melotte 15, in the centre of IC 1805

Link: https://www.jordanmarliere.com/

Very happy to have been able to achieve this photography in order to share it with you. Out of all the pictures taken totalling 17 hours of exposure per 10 minutes, I kept only 11 hours.

The colors in this image were calibrated based on the palette used to render the Hubble Space Telescope shots, namely blue for oxygen emissions, green for hydrogen emissions, and red for sulphur.
Melotte 15 is an open cluster located in the IC1805 nebula, also known as the Heart Nebula, located about 6,500 light-years away in the constellation Cassiopeia.
It is the stellar winds and the energetic radiation of the hot and massive stars forming part of this cluster that make it possible to sculpt the dust clouds into fantastic shapes.

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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
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	4022510
PixInsight job	0RNZOCWZQ0UIWCN7CYFUCMPNLX9L5I8F
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	02h34m30s.827
RA (top/left)	02h39m21s.540
RA (top/right)	02h31m42s.808
RA (bottom/right)	02h29m43s.838
RA (bottom/left)	02h37m13s.729

Dec (center)	+61°22′33″.17
Dec (top/left)	+61°32′19″.30
Dec (top/right)	+61°52′31″.30
Dec (bottom/right)	+61°12′09″.43
Dec (bottom/left)	+60°52′23″.00

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Melotte 15, in the centre of IC 1805

Melotte 15, in the centre of IC 1805

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Melotte 15, in the centre of IC 1805

Melotte 15, in the centre of IC 1805

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