25 Jul 2025
M100, also called the blow dryer galaxy or mirror galaxy, is a grand design spiral galaxy found in Coma Berenices 55 million light years distant. It is a difficult target for binoculars due to its low surface brightness but can be spotted with a small telescope. Larger aperture scopes can reveal dust lanes and core details with long enough exposure time. It is presented here in standard LRGB format. Software: Astro Pixel Processor, Pixinsight, RC-Astro, and Photoshop.
M100
5 credit
Filter | Avg Exp (s) | Total Exposure | Subframes |
|---|---|---|---|
| Luminance | 315 | 1h45m | 20 |
| Red | 315 | 1h45m | 20 |
| Green | 300 | 1h35m | 19 |
| Blue | 268 | 1h25m | 19 |