| distance | 2400 lightyears |
| total integration time | 24x 3 min. Duo-Narrow-Band (Ha/Oiii) |
| right ascension | 20h 45m 58.1s |
| declination | +30° 35′ 43″ |
| high resolution download | veil2.jpg |
| licence | Public Domain |
The Cygnus Loop, Sharpless 103 lies in the cygnus constellation.
It’s a complex of different nebula that are the remains of a supernova that happend about 20.000 years ago. Those nebulas are for example NGC 6992, NGC 6995, NGC 6960 and IC 1340.
The sun that went supernove had an estimated size of 20 times of that of our sun. The explosion was so bright that it could be seen in daylight here on earth and it was brighter than venus in the night sky.
This image is a false color image and contains data of the Ha / Hydrogen alpha wavelength (red color) and the OIII / Oxygen 3 wavelength (blueish color) of the nebula.