M13 - 20110525

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M13 is one of the most beautiful globular clusters in the night sky, comprising some 300,000 stars. Lying in Hercules, at 25,000 ly from Earth, it was first spotted by Edmund Halley (1714) and latter cataloged in 1764 by Charles Messier.
Under dark skies it can be seen with no telescopic aid, since it shines at a 5.8 apparent magnitude.

FS102NSV @f/8 + ST2000 XM

AO8 first light

April 8th, 2010
AO8 unit first light, despite the haze and the frequent need to handle a hairdryer to remove the dew out of the CL.
I did it on my C11 with a Celestron's 0.63x FR and ST2000XM/CFW10.
I targeted M13 and M64 .

M13
2x 150" & 1x 120" @-30ºC
No Darks nor Flats.
MaxIm & CS4

full resolution

M64
1x 420" @-20ºC + 3 x 600" @-30ºC + 1x 180" @-20ºC + 1x 300" @-20ºC
Borrowed a Masterdark from another shot, no flats.
MaxIm & CS4

full resolution