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Author Topic: M1 Crab nebula - 428 EX OSC  (Read 9088 times)

Guy Walsh

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M1 Crab nebula - 428 EX OSC
« on: December 17, 2012, 12:49:34 AM »
Taken the other night, average city sky..freezing mist..

Still managed 2 hours on the crab ( 16 x 450 seconds ) master bias, no flats or darks.

Thanks for looking...




bwa

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Re: M1 Crab nebula - 428 EX OSC
« Reply #1 on: December 17, 2012, 08:23:40 AM »
A nice image!  I do believe there is a bit more nebulosity hidden in the darkness but I wouldn't complain too much with the conditions you mention...

What scope did you use?

bwa

Guy Walsh

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Re: M1 Crab nebula - 428 EX OSC
« Reply #2 on: December 17, 2012, 01:33:43 PM »
A nice image!  I do believe there is a bit more nebulosity hidden in the darkness but I wouldn't complain too much with the conditions you mention...

What scope did you use?

bwa

Hi, APM 107 f/6.5 with a tele vue 0.8x reducer, the sky was grotty ;)

bwa

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Re: M1 Crab nebula - 428 EX OSC
« Reply #3 on: December 17, 2012, 06:41:06 PM »
I did have to look up

grotty [ˈgrɒtɪ]
adj -tier, -tiest Brit slang
1. unpleasant, nasty, or unattractive
2. of poor quality or in bad condition; unsatisfactory or useless

Yupp, I've had skies like that... :)

Guy Walsh

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Re: M1 Crab nebula - 428 EX OSC
« Reply #4 on: December 17, 2012, 09:57:39 PM »
I did have to look up

grotty [ˈgrɒtɪ]
adj -tier, -tiest Brit slang
1. unpleasant, nasty, or unattractive
2. of poor quality or in bad condition; unsatisfactory or useless

Yupp, I've had skies like that... :)

Lol...  ;D

Lex

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Re: M1 Crab nebula - 428 EX OSC
« Reply #5 on: January 18, 2013, 09:03:08 PM »
Hi Guy,

I think that there is more data behind your nice Crab than it actually shows...
Perhaps go easyier with the stretching, doing this would clip less data and show more reflections...
CGEM, C11, TS Carbon Apo Triplet 90/600, TS Carbon UNC 254/1250, Atik 383l+, EFW2,
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