2009 December 22nd from Leigh on
sea, Essex, UK
Televue TVNP101 100mm APO refractor 540mm fl.
Starlight lodestar autoguider on G11 Mount
Starlight Xpress HX916 CCD
Astrodon 3 nm Ha filter
The image is a two tile mosaic
Each tile created from 7 x 15min sub exposures. 3.5 hours of total exposure time.
See a full resolution image here
The weather during the exposures was
extremely cold at about -6c.
There was snow laying on the ground reflecting light into the sky. However the sky was very transparent.
Several sub exposures were wasted because the camera optical window frosted up, something that has never occurred before.
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