| Object info: | |
| Common name: | Witch's Broom |
| Catalog code: | NGC 6960 |
| Object type: | Supernova remnant |
| Constellation: | Cygnus |
| Object size: | 3 degrees |
| Object description: | The Veil Nebula is a cloud of heated and ionized gas and dust. The source supernova exploded some 5,000 to 8,000 years ago, and the remnants have since expanded to cover an area roughly 3 degrees in diameter, about 6 times the diameter of the full moon. This NGC 6960 is the name of the western portion of the Veil Nebula. |
| Imaging info: | |
| imaging date: | 16 October 2011 |
| Optics: | Astrotech 80 ED |
| Effective focal length: | 550mm |
| Camera & filters: | Canon EOS20D modified |
| Exposure & camera settings: | 17x8min@ISO800 |
| Imaging software: | Nebulosity 2.3 |
| Mount: | Vixen GP |
| Guiding details: | autoguiding with PHD 12.1 and Meade ETX with focal reducer and DSI I camera |
| Image processing: | |
| processing date: | 19 October 2011 |
| calibration frames: | 20 flats & 12 darks |
| stacking & calibration software: | Nebulosity 2.4.1 |
| Postprocessing: | Nebulosity and Pixinsight LE |
| Local conditions: | |
| Location: | Stroe |
| SQM-L value: | ? |
| Temperature: | 8 Celsius |