Heart Nebula - Natural Palette Mosaic (Palmito)

Heart Nebula - Natural Palette Mosaic

Link: https://www.elveteek.ch/ic1805/natural

The nebula gets its red color from the large amount of excited hydrogen gas (H-alpha). Nebulae are nurseries of stars, they are areas where stars are born.

Located in the Cassiopeia constellation at 7,500 light years away from us (about 75,000,000,000,000,000 km, 75 million billion km ?!), it is 100 light years in diameter.

It was discovered by William Herschel in 1787, a pioneer of astronomy. It is thanks to the telescopes he built that we were able to discover the richness of the universe around us, and that 100 years before the invention of photography!

The stellar cluster contains very young stars, super giant blue stars that are about 1.5 million years old (compared to 4.6 billion years for our sun). At the center, several very bright stars are nearly 50 times the mass of the sun.

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La nébuleuse tire son rouge de la grande quantité de gaz d’hydrogène excité (H-alpha). Les nébuleuses sont des pouponnières d’étoiles, ce sont des zones où les étoiles naissent.

Située dans la constellation Cassiopée à 7'500 années lumières de nous (environ 75’000'000'000'000'000 km, 75 millions de milliards de km ?!), elle fait 100 années lumières de large.

Elle a été découverte par William Herschel en 1787, pionnier de l’astronomie. C’est grâce aux télescopes qu’il a construit qu’on a pu découvrir la richesse de l’univers qui nous entoure. Et cela 100 ans avant l’invention de la photo !

L’amas stellaire contient de très jeunes étoiles, super géantes bleues âgées d’environ 1.5 million d’années (contre 4.6 milliard d’années pour notre soleil). Au centre, plusieurs étoiles très brillantes font près de 50 fois la masse du soleil.

Original
B
C
Final
D

B

Description: Fixed mosaic join issue

Uploaded: ...

C

Description: Fixed hot pixels in "OIII tile#2"
Reworked colors

Uploaded: ...

D

Description: Added true RGB stars and made them more visible

Uploaded: ...

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Status	Advanced success
Started	...
Astrometry.net job	7263982
PixInsight job	OUN5IIBMDUHJLHCL1K3O33HDCIAM1RAG
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	02h32m40s.980
RA (top/left)	02h41m54s.376
RA (top/right)	02h43m00s.964
RA (bottom/right)	02h22m21s.351
RA (bottom/left)	02h23m28s.719

Dec (center)	+61°27′38″.27
Dec (top/left)	+59°39′38″.00
Dec (top/right)	+63°13′06″.39
Dec (bottom/right)	+63°13′19″.74
Dec (bottom/left)	+59°39′37″.60

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