Spiral Galaxy M101 / M102
| Object |
Spiral Galaxy (M101 / M102), "The Pinwheel Galaxy", in Ursa Major |
|
| Telescope (Photo) | Celestron 8" EdgeHD OTA @ f/7 on Losmandy G-11 Mount | |
| Telescope (Guiding) | Astro-Tech 72mm Refractor @ f/15 on Losmandy G11 Mount | |
| Camera (Photo) | Canon 50Dh DSLR Camera (Hutech modified) using ImagesPlus 5.0 Camera Control | |
| Camera (Guiding) | SBIG ST-i w/PHD Guiding | |
| Exposure Detail | 22 images at 600 seconds each, ISO3200; reprocessed in PixInsight 1.8.9 | |
| Location |
Private Property at Chiefland Astronomy Village, Florida (N29.406, W82.860) |
|
| Date | 04/02/2014 (reprocessed 7/03/2024 and 12/11/2024) | |
| Note | Reprocessed data from 04/02/2014. See original version | |
| Comments | M102 is the same object as M101, which occurred through an error in the original Messier cataloging. However, spiral galaxy NGC5866 is believed by some astronomers to be the "real" M102. Due to a recording error by Charles Messier, M102's position remains unclear and astronomers generally believe M102 to be a duplicate observation of M101. However, if the recording error is rationalized, NGC5866 can be found in the position perhaps intended originally by Messier. |