Melotte 15 Heart of the Heart (niteman1946)

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

Melotte 15 Heart of the Heart, niteman1946

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Melotte 15 Heart of the Heart

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Melotte 15 Heart of the Heart

Cosmic clouds form fantastic shapes in the central regions of emission nebula IC 1805. The clouds are sculpted by stellar winds and radiation from massive hot stars in the nebula's newborn star cluster, Melotte 15. About 1.5 million years young, the cluster stars are toward the center in this skyscape, along with dark dust clouds in silhouette against glowing atomic gas. A composite of narrowband telescopic images, the view includes emission from ionized hydrogen, sulfur, and oxygen atoms mapped to green, red, and blue hues in the popular Hubble Palette. Wider field images reveal that IC 1805's simpler, overall outline suggests its popular name - The Heart Nebula. IC 1805 (and its Melotte 15 center) is located about 7,500 light years away toward the boastful constellation Cassiopeia. [Source: APOD]

The image was captured with the venerable Meade 12"LX200 Classic, using the Atik 383L+ mono at F7.16 (i.e. 2182mm FL). Astronomik's Ha, OIII and SII narrow band filters were used. All subs were taken at 1x1 bin, and -10C and 10 minutes each.

Image information -- 2016

Ha : 39 subs (6.50 hr) in early to mid Oct.

OIII : 42 subs (7.00 hr) in early to mid Oct.

SII : 45 subs (7.50 hr) in early to mid Oct.

Color Mix is the Hubble Palette (SHO):

Ha = Green

S2 = Red

O3 = Blue

Processing was done with PixInsight. Each filter set was integrated, processed and stretched. These were then combined with PixelMath per the Hubble palette. This final image was further processed in PI, bringing it to the level presented.

I've just begun working with RickS' ColorMask script to defeat the green and enhance the blue. I'm encouraged with what I see.

North is up, and this is a small crop due to inevitable sub movement from night to night.

Original
Final
B

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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.

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Status	Basic success
Started	...
Astrometry.net job	1288015
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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Melotte 15 Heart of the Heart

Melotte 15 Heart of the Heart

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Melotte 15 Heart of the Heart

Melotte 15 Heart of the Heart

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