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No nebula this time, it’s a globular cluster! I’ve never had a long enough focal length scope to catch one of these close up, so it’s a first for me. This is taken from the iTelescope site in New Mexico, and is also visible in the UK.

M13 is around 145 light years in diameter and 25,100 light years away from Earth. its made up of several hundred thousand stars. You can play a game of “spot the galaxy” in the background, the most obvious is NGC6207 to the top right.

T11 the same spec scope and mount as T30 at SSO, expect it has a higher res CCD camera, using the same Kodak sensor as the SBIG in T12. Unguided once again, the 200HR has incredible tracking.

Camera: FLI ProLine PL11002M (-35°C)
Scope: Planewave 20″ (0.51m) CDK F4.5
Mount: Planewave Ascension 200HR
Guiding: None
Capture Software: ACP, Maxim DL
Processing Software: Deep Sky Stacker, PixInsight
Exposures: 4 x 2.5 mins (2×2 RGB) 3 x 5 mins (1×1 Lum). 45 mins total
Calibration: Automated

M13_LRGB_

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