Melotte 15 in IC1805 (Theodore Arampatzoglou)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: IC 1805

Melotte 15 in IC1805, Theodore Arampatzoglou

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Melotte 15 in IC1805

Link: http://arasteo.blogspot.gr/

Powered byPixInsight

Melotte 15 in IC1805

Link: http://arasteo.blogspot.gr/

The bright open star cluster, in this image is known as Melotte 15 after its discoverer, Philibert Jacques Melotte (1880-1961). Melotte 15 is embedded within and illuminates the central portion of the much larger glowing nebula identified as IC 1805.

The Heart Nebula, IC 1805, Sh2-190, 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 gas and darker dust lanes. The nebula is formed by plasma of ionized hydrogen and free electrons.

The interesting structure in the right of the image is a giant area of hydrogen gas that is caused to glow by the intense ultraviolet radiation from the massive stars of the Melotte 15 star cluster.

Dust and gas clouds are eroded by the pressure of the intense radiation.

The Melotte 15 star cluster is estimated to be 7,500 light years away from Earth.

Tricolor Emmision Line image

S[II] 8nm(Red)_Ha 5nm(Green)_O[III] 3nm(Blue)

Modified Hubble Palette

Instruments and exposure data:

S[II] 22*15min_Ha 39*10min_O[III] 26*15min

total exposure time : 1110min (18h 30min)

W.O FLT110 with dedicated TMB field flattener

FeatherTouch 3'' focuser

Starizona MicroTouch autofocuser

W.O ZS80 ED

SBIG ST10XME CFW9

Meade DSI

Sky-Watcher EQ6 Pro

Filters:

Ha 5nm Astrodon

S[II] 8nm Baader

O[III] 3nm Astrodon

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Started	...
Astrometry.net job	3279444
PixInsight job	n/a
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Melotte 15 in IC1805

Melotte 15 in IC1805

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Melotte 15 in IC1805

Melotte 15 in IC1805

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