Wallpaper author:
Michelle Ashford
22 Nov 2025
NGC 3521
NGC 3521 is a flocculent intermediate spiral galaxy approx. 30 million light-years away in the constellation of Leo. It is nicknamed the Bubble Nebula a result of extensive debris shells from the accretion of one or more long gone satellite galaxies. The merger also led to the formation of many star clusters, which are pink tinged.
The galaxy was discovered by William Herschel in 1784.
Pixinsight, Blur Exterminator, Affinity, Star Exterminator, Topaz De-Noise/Sharpen
Dataset from which the image was processed
NGC 3521
12 credit
- Type of target............................................................................................................................Galaxy
- Camera............................................................................................................................QHY 600M
- Target coordinates............................................................................................................................RA 166.4524 Dec -0.0359
- Hemisphere............................................................................................................................Southern
- Telescope location............................................................................................................................Chile
- Transient event............................................................................................................................No
- Observed on............................................................................................................................12 Jan 2024 - 02 Jan 2025
Filter | Avg Exp (s) | Total Exposure | Subframes |
|---|---|---|---|
| Blue | 312 | 4h25m | 51 |
| Luminance | 288 | 4h | 50 |
| Red | 300 | 4h10m | 50 |
| Green | 300 | 4h10m | 50 |