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alexbb

M13 with slow achro

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Hello all,

Last night it was clear so I spent some time on M13. There's something that I don't like at my 130 PDS, I have to figure it out, so I put the camera on the evostar 90/900.

3-4 minutes luminance 5s, ~40 minutes luminance 30s, 3-4 minutes each RGB 15s. I couldn't get more before the scope would see the window frame. Gain 300, cooled at -15C. Guided.

Won't say more as I stayed all night up and since I woke up I'm processing data (other data too). I'm happy that tonight it's cloudy so I can sleep.

Below is the final result.

Clear skies,

Alex

M13-F900-2017-02-25-RGB_p01.jpg

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Alex, very nice M13, i see you have a sneaky small galaxy bottom left of the image

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Thanks! The larger galaxy is NGC6207 and there's also the fainter IC4617 in between at 15.2-15.5 mag. Pleased enough for city lights, bad seeing, short exposures and slow 90mm achromat. Need to get that 0.63 reducer for the C6 though.

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