Copyright and reproduction policy
Yours truly
NGC 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.
| Date | 2002-08-11 |
| Scope |
RCOS 12.5 inch RC with A-P 0.75 reducer (f/6.75) with ST-10XME CCD camera at -10 °C on A-P 1200 GTO mount. Unguided. |
| Exposure |
13 x 1 min x 3x3 binning with regular IR-blocking R, G, and B SBIG filters in SBIG CFW-8 filter wheel. |
| Processing |
Stacked and RGB combined in MaxIm 3.07; R=1.2, G=1.0, B=2.0 weighting. Stretched and balanced in PhotoShop 7.0 |