Wallpaper author:
Jared Greer
14 Dec 2025
Comet Leonard
Leonard was visible to the naked eye back in 2021 with a bright nucleus and a long, gaseous tail sculpted by solar wind. It may have disintegrated around this time. Processed with Astro Pixel Processor, Pixinsight, and Photoshop. Imaged in LRGB format with RGB stars.
Dataset from which the image was processed
Comet C/2021 A1 (Leonard) Mosaic
1 credit
- Type of target............................................................................................................................Comet
- Camera............................................................................................................................FLI PL16803
- Target coordinates............................................................................................................................RA 325.64166 Dec -35.33528
- Hemisphere............................................................................................................................Southern
- Telescope location............................................................................................................................Australia
- Transient event............................................................................................................................No
- Observed on............................................................................................................................31 Dec 2021 - 31 Dec 2021
Filter | Avg Exp (s) | Total Exposure | Subframes |
|---|---|---|---|
| Luminance | 216 | 18m | 5 |
| Red | 72 | 6m | 5 |
| Green | 90 | 6m | 4 |
| Blue | 90 | 6m | 4 |