Wallpaper author:
David Tonucci
27 Dec 2025
Dust in Chamaeleon
The Chamaeleon I (Cha I) cloud is one of the nearest active star formation regions to Earth, with an estimated median distance of 190 parsecs (620 light-years) according to 2018 parallax measurements by the Gaia satellite. It is relatively isolated from other star-forming clouds, so it is unlikely that older pre-main sequence (PMS) stars have drifted into the field.
Dataset from which the image was processed
Cha I
7 credit
- Type of target............................................................................................................................Integrated Flux Nebula
- Camera............................................................................................................................FLI PL16803
- Target coordinates............................................................................................................................RA 188.97083 Dec -80.3875
- Hemisphere............................................................................................................................Southern
- Telescope location............................................................................................................................Australia
- Transient event............................................................................................................................No
- Observed on............................................................................................................................30 Jan 2022 - 08 May 2022
Filter | Avg Exp (s) | Total Exposure | Subframes |
|---|---|---|---|
| Green | 600 | 2h40m | 16 |
| Blue | 600 | 2h40m | 16 |
| Luminance | 600 | 2h40m | 16 |
| Red | 600 | 2h40m | 16 |