Caph Star

[jaspalchadha]

Plain old simple really with last nights horrible conditions

#Cassiopeiae is a yellow-white hued sub giant or giant of stellar class F2III-IV, with a surface temperature of 6,700 Kelvin. More than three times the size of and 28 times brighter than the Sun, Caph has an absolute magnitude of +1.16. It was once an A-type star with about double the Sun's mass. It is now in the process of cooling and expanding to become a red giant. Its core is likely to have used up its hydrogen and is shrinking and heating, while its outer envelope of hydrogen is expanding and cooling. Stars do not spend much time in this state and are relatively uncommon. #Caph's corona is unusually weak.

Text from wiki

Location : #London (UK)

Date: 31/10/2015

Telescope: Skywatcher 100ED

CCD: QHY9S MONO

Chroma LRGB at 5 x 120seconds

Mount: Ioptron CEM60

https://flic.kr/p/AdVi2A for better rez

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[tingting44]

thats a lovely image, so much going on in fact i think a B&W negative version would go down really well here

[laudropb]

Very nice image. Thanks for posting.

[Mr Spock]

Really nice image and interesting background information with it.

[jaspalchadha]

Thanks all

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[xtreemchaos]

lovely image mate. well done.  thanks for sharing  charl.

[jaspalchadha]

Thank you

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[Physopto]

Very nice and a beautiful selection of star colours visible.

Derek

[jaspalchadha]

Thanks for stopping by

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