M101 / M102 - The Pinwheel Galaxy
| Object | Spiral Galaxy “The Pinwheel Galaxy” (M101), in Ursa Major | |
| Telescope (Photo) | Celestron 8" SCT OTA @ f/6.3 on Losmandy G11 Mount | |
| Telescope (Guiding) | Televue 85mm refractor @ f/5.6 on Losmandy G11 Mount | |
| Camera (Photo) | Canon 20Da DSLR | |
| Camera (Guiding) | Meade DSI Pro II w/PHD Guiding | |
| Exposure Detail | Excluded-Average combination of 20 images at 300 seconds each, ISO1600; RAW file conversion, full calibration (bias, flat, dark, and flat dark), and initial image processing using ImagesPlus 3.75; final image processing using Photoshop CS3 | |
| Location |
Private Property at
Chiefland Astronomy Village, Florida (N29.406, W82.860) |
|
| Date | 03/21/09 | |
| Comments | M102 is the same object as M101, which occurred through an error in the original Messier cataloging |