Close-up in Heart Nebula & Melotte 15 open cluster (Christophe Perroud)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: IC 1805 · Sh2-190

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Close-up in Heart Nebula & Melotte 15 open cluster

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Close-up in Heart Nebula & Melotte 15 open cluster

Hi astro-nuts, here is the central area of the large Heart Nebula (IC1805) in constellation Cassiopeia, imaged with the Taka TSA120 @900mm focal length and Nikon D5500 modded by JTW. The final image is cropped to better focus on the main features : Melotte 15 and surrounding clouds of gas and dusts. I found this part of the nebula very attractive and decided to give a try and to see how much faint nebulositie I could gather with my f/7.5 refractor and OSC. Unfortunately, my mount ran out of power after "only" 33 frames but that makes at least 165 min to play with in Pixinsight ;-)

Melotte 15 is located about 7'500 l-y away from home and is a rich young stars' nursery about 1.5 My. old. The open cluster ionizes the surrounding nebulosity and give its red tint.

The night was really good : seeing and transparency offering excellent conditions to shot. I drove 30' to reach a nice spot at 1'200 m. on the Jura Mountains. A perfect night under the stars :-) The only drawback is that the power station decided to stop the session too early… Well, need to thing about recharging it before going outside... :-P

Hope you will enjoy this new image and feel free to leave a comment :-) Clear skies and stay well!

Christophe

Imagers of Switzerland
Nikon Imagers
Takahashi Refractors

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Status	Advanced success
Started	...
Astrometry.net job	3794143
PixInsight job	DM5OXRYD3AU9ADZ5SOTZQEUCINO4VAT9
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	02h35m09s.199
RA (top/left)	02h33m16s.370
RA (top/right)	02h29m56s.587
RA (bottom/right)	02h36m57s.916
RA (bottom/left)	02h40m25s.905

Dec (center)	+61°25′28″.41
Dec (top/left)	+62°03′02″.30
Dec (top/right)	+61°11′48″.87
Dec (bottom/right)	+60°47′48″.24
Dec (bottom/left)	+61°38′19″.59

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Close-up in Heart Nebula & Melotte 15 open cluster

Close-up in Heart Nebula & Melotte 15 open cluster

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Close-up in Heart Nebula & Melotte 15 open cluster

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