| OBJECT |
M51 - Whirlpool Galaxy (image above is reduced-size crop | other sizes: medium , original) Distance: 30 million light years |
|
| Telescope | Takahashi TOA-130F @ f/7.7 | |
| Mount | Takahashi EM200 Temma II | |
| Camera | QSI 540wsg @ -15C | |
| Filters | Astrodon Tru-Balance I-Series LRGB Gen 2 | |
| Guider | SX Lodestar | |
| Settings | 12x15min,7x10min L (bin1x1); 6x5min ea RGB (bin2x2); AstroArt5, CS4 (slightly cropped, 10xdarks/flats/fdarks/bias) | |
| Date/Location Notes |
14 March 2013 - Las Cruces, NM Published in One Minute Astronomer, 16 Apr 13. Process notes: My special thanks to Leonardo Orazi for sharing his knowledge on improved RGB processing with me! |
