|
M20 The Trifid Nebulae |
| Other Names/Objects | — |
|---|---|
| Optics | Deep Sky Instruments RC10C 10" Corrected Ritchey-Chrétien Telescope at f/7.3 |
| Mount | Astro-Physics 900-GTO German Equatorial Go-To Mount on ATS portable pier |
| Camera | Canon EOS 5D Mark II (unmodified) at ISO 1600 |
| Exposure | 42 minutes (7 x 6 minutes) |
| Calibration | 10 darks | 15 flats | 0 bias |
| Air Temperature | 48°F |
| Accessories | Autoguided with Orion StarShoot Autoguider and Canon 200mm lens with 2x telextender |
| Location | Julian, California (Julian Starfest) |
| Date | August 7, 2010 |
| Notes |
Processing: Image acquisition with Canon EOS Utility. Image calibration, align, and combine in ImagesPlus 3.75. Levels, curves, sharpen, noise smoothing (Noel Carboni's PS Tools), crop, and resize and save as JPG in Photoshop. Larger versions: 1800 x 1200 (~1.9 MB) |