Heart of the Heart Nebula - Collinder 26, Melotte 15, or IC 1805 (Harry Karamitsos)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: HD15250 · HD15522 · HD15557 · HD15558 · HD15570 · HD15629 · HD15851 · HD16183 · IC 1805 · LBN 650 · LBN 654 · LBN 655 · LDN 1360 · LDN 1361 · LDN 1362 · LDN 1363 · LDN 1364 · LDN 1366 · LDN 1367 · LDN 1368 · LDN 1369 · LDN 1372 · LDN 1373 · Sh2-190

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Heart of the Heart Nebula - Collinder 26, Melotte 15, or IC 1805

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Heart of the Heart Nebula - Collinder 26, Melotte 15, or IC 1805

From Wikipedia

The nebula's intense red output and its morphology are driven by the radiation emanating from a small group of stars near the nebula's center. This open cluster of stars, known as Collinder 26, Melotte 15, or IC 1805, contains a few bright stars nearly 50 times the mass of the Sun, and many more dim stars that are only a fraction of the Sun's mass.[1]

The Heart Nebula is also made up of ionised oxygen and sulfur gasses, responsible for the rich blue and orange colours seen in narrowband images. The shape of the nebula is driven by stellar winds from the hot stars in its core. The nebula also spans almost 2 degrees in the sky, covering an area four times that of the diameter of the full moon.[3]

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	Distinct awarded users	Total awarded images
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Deep sky
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	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
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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.

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Status	Advanced success
Started	...
PixInsight job	H486B6ZY1OZE2OGLD1VCO5LXTGROM45W
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	02h33m33s.434
RA (top/left)	02h40m35s.481
RA (top/right)	02h26m45s.240
RA (bottom/right)	02h26m45s.342
RA (bottom/left)	02h40m07s.405

Dec (center)	+61°22′58″.44
Dec (top/left)	+61°53′03″.62
Dec (top/right)	+61°55′41″.59
Dec (bottom/right)	+60°51′32″.81
Dec (bottom/left)	+60°49′00″.21

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Heart of the Heart Nebula - Collinder 26, Melotte 15, or IC 1805

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Heart of the Heart Nebula - Collinder 26, Melotte 15, or IC 1805

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