02 Oct 2026
M20, the Trifid Nebula, is seem here in an HST palette. Note: one can always judge the resolution of an M20 image depending on whether you can see the antennae on top of the slug's head at image bottom (left inset).
M20
11 credit
Filter | Avg Exp (s) | Total Exposure | Subframes |
|---|---|---|---|
| Halpha | 688 | 7h50m | 41 |
| SII | 541 | 6h10m | 41 |
| OIII | 570 | 6h20m | 40 |