Dumbbell Nebula with chroma filters

[jaspalchadha]

The Dumbell Nebula aka M27 was the first planetary nebula seen by human eyes, discovered by Charles Messsier in 1764.

John Herscel later named it the Dumbbell Nebula.

The central teal colour arises from the emission lines of doubly ionized oxygen. These emission lines can only occur in a low-density environment like a planetary nebula. It is approximately 1200 light-years away. At this distance, our sun would appear 100 times fainter than the nebula.

It’s also notable because of the star that remains at its centre: it’s the largest-known white dwarf star. Over a period of thousand years, the Dumbbell nebula will gradually disperse somewhere into space, and then the white dwarf will cool and fade away for billions of years......

Imaged from: London UK

Date: 08/06/2015

Altair Astro RC 250TT – with focal reducer

Ioptron CEM 60 mount

QHY9S CCD

Chroma Technology Filters

Luminance 6 x 300seconds

Red 6 x 300seconds

Green 6 x 300seconds

Blue 6 x 300seconds

Chroma 3nm Ha 1 x 300seconds

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https://www.flickr.com/photos/95267225@ ... ed-public/

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[MattJenko]

Very nice. What sized Chroma filters did you go for to cover the 8300 in the QHY9s?

[jaspalchadha]

Thanks Matt all of the chroma in 36mm

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[toxic]

nice image there jaspal,

bit pricey them filters for me lol

[jaspalchadha]

cheers toxic it was either astrdon ( or something new )

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[jaspalchadha]

Nice to know that this one will feature in sky and telescope magazine in November

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[Gazabone]

That is very impressive, I'll be delighted the day I produce an image of that quality. Thanks for sharing.

[jaspalchadha]

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[laudropb]

Very nice image. Looks like the filters were well worth the money. Thanks for sharing.

[jaspalchadha]

Thanks bud

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