M31, The Great Andromeda Galaxy
 | |
| small | with moon |
| Date | 09/25/2006 |
|---|---|
| Conditions | 20.42 mags/sq arcsec at zenith |
| Scope | Orion ED80 @ f/6 |
| Optics | William Optics 0.8X Focal Reducer, Baader UV-IR Cut Filter |
| Camera | Canon 350D (IR modified) |
| Exposure | 28 x 5 min, ISO 800 |
| Processing | ImagesPlus 2.8 dark/flat/bias calibration, stacking, DDP; PS CS2, levels, curves, USM, Hi-pass, saturation; Noel's Actions, grain reduction; Gradient Exterminator |