The Lagoon Nebula (catalogued as Messier 8 or M8, NGC 6523, Sharpless 25, RCW 146, and Gum 72) is a giant emission nebula with an H II region located in the constellation Sagittarius. It is one of only two star-forming nebulae faintly visible to the naked eye from mid-northern latitudes (the other being the Orion Nebula).
| Object | M8 Lagoon Nebula |
| Constellation: | Sagittarius |
| Position: | RA 06h 40m 52s Dec 09° 52' 00'' |
| Apparent Size: | 90 × 40 arcmins |
| Apparent Magnitude: | 4.6 |
| Distance in light years: | 4100 ly |
| Photo Data | |
| Date of Expose: | 2024-05-09 to 2024-05-12 |
| Location: | Utah Desert Remote Observatory - Beryl, Utah, USA, |
| Telescope: | Dreamscope 16" f/3.7 Astrograph |
| Camera: | ASI6200MM Pro |
| Field of View: | |
| Pixel Scale/Resolution: | arcsec/px |
| Expose frames/times: | SII 8x600s, Ha 4x600s, OIII 5x600s |
| Total expose: | 2h 50min |
| Filter: | |
| Mount: | |
| Software: | Siril 1.4, Photoshop CC |
| Remarks: |
© 2025 Peter Cerveny