NGC 281 the "Pac Man" nebula
Imaged 2013 December 5th from my light polluted
back garden in Leigh on Sea, Essex, UK
Televue TVNP101 100mm APO refractor 540mm fl.
Starlight Lodestar autoguider on G11 Mount
SBig ST8300M CCD camera
Images acquired in Maxim DL Pro 5
Astrodon 3nm S II, OIII and Ha narrow band filters.
Tri colour image mapped to the Hubble palette with RGB stars
Exposures 1 hour 1x1, OIII 1 hour 1x1, SII 1 hour 1x1, using 15 minute sub exposures at -20 deg C
Stars 8 mins per colour 1x1, 2 min sub exposures.
Total exposure 3hrs 24 minutes.
All sub exposures 20 minutes .
See my previous image here, its an LRGB image taken in 2006 with the same Televue refractor.
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