IC1805 Heart nebula 2 pane mosaic in Ha (Sergiy_Vakulenko)

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 · 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 · Sh2-190

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IC1805 Heart nebula 2 pane mosaic in Ha

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IC1805 Heart nebula 2 pane mosaic in Ha

The Heart Nebula, IC 1805, Sharpless 2-190, lies some 7500 light years away from Earth and is located in the Perseus Arm of the Galaxy in the constellation Cassiopeia. This is an emission nebula showing glowing ionized hydrogen gas and darker dust lanes.

The very brightest part of this nebula (the knot at the western edge) is separately classified as NGC 896, because it was the first part of this nebula to be discovered.

The nebula's intense red output and its configuration are driven by the radiation emanating from a small group of stars near the nebula's center. This open cluster of stars known as Melotte 15 contains a few bright stars nearly 50 times the mass of our Sun, and many more dim stars that are only a fraction of our Sun's mass.

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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.
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Promotions by Reviewers When 3 distinct Reviewers promote the image, it moves on to the next stage of the process: evaluation for IOTD status.
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Status	Advanced success
Started	...
Astrometry.net job	2987897
PixInsight job	62V07TT4C29XGRI86SHDZKR2CDHK4J3H
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	02h31m38s.70
RA (top/left)	02h38m30s.65
RA (top/right)	02h40m32s.95
RA (bottom/right)	02h24m09s.15
RA (bottom/left)	02h23m19s.85

Dec (center)	+61°17′40″.7
Dec (top/left)	+60°01′58″.0
Dec (top/right)	+62°23′36″.2
Dec (bottom/right)	+62°32′06″.7
Dec (bottom/left)	+60°09′39″.4

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IC1805 Heart nebula 2 pane mosaic in Ha

IC1805 Heart nebula 2 pane mosaic in Ha

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IC1805 Heart nebula 2 pane mosaic in Ha

IC1805 Heart nebula 2 pane mosaic in Ha

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