Wallpaper author:
Ivan Leurda
20 Dec 2025
M100
Messier 100 -Mirror Galaxy (NGC 4321) is an intermediate spiral galaxy in Coma Berenices. It is one of the brightest and largest galaxies in the Virgo Cluster and is approximately 55 million light years from Earth, about 166,000 light-years in diameter. It was discovered by Pierre Mechain in 1781.
NGC4323 and NGC4328 are satellite galaxies of M100; the former is connected with it by a bridge of luminous matter.
(Wikipedia)
Luminance was combined with RGB using ImageBlend script in Pixinsight.
Dataset from which the image was processed
M100
5 credit
- Type of target............................................................................................................................Galaxy
- Camera............................................................................................................................QHY 600M
- Target coordinates............................................................................................................................RA 185.72891 Dec 15.8223
- Hemisphere............................................................................................................................Southern
- Telescope location............................................................................................................................Chile
- Transient event............................................................................................................................No
- Observed on............................................................................................................................18 Mar 2024 - 07 Apr 2024
Filter | Avg Exp (s) | Total Exposure | Subframes |
|---|---|---|---|
| Luminance | 315 | 1h45m | 20 |
| Red | 315 | 1h45m | 20 |
| Green | 300 | 1h35m | 19 |
| Blue | 268 | 1h25m | 19 |