Copyright and how to purchase prints
7635, The Bubble Nebula, in Cassiopeia
NGC 7635, the Bubble nebula,
is a small (about 15 x 8 arcmin, 6-10 light years), faint, circumpolar object
about 11,000 light years away from Earth. It is believed to be a nova remnant.
North is up in this image.
RCOS 12.5 inch RC with
A-P 0.75 reducer (f/6.75) with ST-10XME CCD camera at -10 °C
A-P 1200 GTO mount.
13 x 1 min x 3x3 binning with
regular IR-blocking R, G, and B SBIG filters in SBIG CFW-8 filter wheel.
Stacked and RGB combined
in MaxIm 3.07; R=1.2, G=1.0, B=2.0 weighting. Stretched and
to New Stuff