Cassiopea and Perseus border region (framoro)

Cassiopea and Perseus border region

Border region between the constellations of Cassiopeia and Perseus, mother-in-law and son-in-law in the myth of Andromeda. The Heart Nebula, the Soul Nebula and, just to the south-west, the Perseus Double Cluster stand out.
IC 1805 and nearby IC 1848 form a large nebulous complex known as the "Heart and Soul" complex; the "heart" is IC 1805, while the "soul" is represented by IC 1848. This is a very large HII region, whose distance is estimated at 7500 LY from us. Inside them there are small, poorly concentrated open clusters formed by "young" blue giants, responsible for the ionization of the nebulosity. Multiple episodes of star formation are active near the nebulae. From this region emerge over 30 molecular clouds and globules dispersed into the surrounding space, the presence of which suggests that a giant molecular cloud was once located in the region and later dissolved due to a first intense episode of star formation.
The “Double Perseus Cluster” is formed by a pair of open clusters: h+χ Persei or NGC 884 and NGC 869 and was described as early as 130 BC by the Greek astronomer Hipparchus. The fact that they are so clearly visible even from a great distance (our Solar System is about 7000 AL from them) is an indication of their great real brightness, as well as their size, estimated at around 70 AL in diameter for both objects. NGC 869 is magnitude 5.3 and contains about 200 stars, while NGC 884 is magnitude 6.1 and contains about 120 stars. They are external to the galactic plane and were born from the same giant cloud of gas, but still internal to the Milky Way. They are located in the Perseus Arm, an outermost spiral branch of our Galaxy and immediately following the Orion Arm (where our solar system resides). Both are young clusters, aged between 3 and 6 million years, and about 800 LY apart.

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Final
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C

Description: I prefer it as a landscape view.

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Status	Advanced success
Started	...
Astrometry.net job	9448004
PixInsight job	1COE6O75IL8FJ7L84QEVXX2XPY9PQ1LU
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	02h36m04s.78
RA (top/left)	02h40m47s.13
RA (top/right)	03h18m19s.39
RA (bottom/right)	02h29m36s.38
RA (bottom/left)	02h00m05s.79

Dec (center)	+60°10′54″.9
Dec (top/left)	+54°40′14″.3
Dec (top/right)	+62°26′04″.3
Dec (bottom/right)	+65°40′05″.9
Dec (bottom/left)	+57°11′52″.4

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