Trifid and Lagoon Nebulae Excerpt: Messier 21
The open star cluster Messier 21 as imaged by NSF–DOE Vera C. Rubin Observatory. Located near the Trifid Nebula, Messier 21 is relatively young and tightly packed with small, dim stars.
Credit:RubinObs/NOIRLab/SLAC/NSF/DOE/AURA
About the Image
| Id: | noirlab2521ag |
| Type: | Observation |
| Release date: | June 23, 2025, 8:20 a.m. |
| Related releases: | noirlab2521 |
| Size: | 6368 x 6368 px |
About the Object
| Name: | M21, Vera C. Rubin Observatory |
| Distance: | 4000 light years |
| Constellation: | Sagittarius |
| Category: | Star Clusters Vera C. Rubin Observatory |
Image Formats
Coordinates
| Position (RA): | 18 4 12.67 |
| Position (Dec): | -22° 29' 33.35" |
| Field of view: | 27.69 x 27.69 arcminutes |
| Orientation: | North is 12.2° right of vertical |
View in WorldWide Telescope:
Colors & filters
| Band | Wave-length | Tele-scope |
|---|---|---|
| Optical u | 372 nm | Simonyi Survey Telescope LSSTCam |
| Optical g | 480 nm | Simonyi Survey Telescope LSSTCam |
| Optical r | 622 nm | Simonyi Survey Telescope LSSTCam |
| Optical i | 755 nm | Simonyi Survey Telescope LSSTCam |