M20 (NGC, Trifid) and M21 (NGC 6531)

TheTrifid Nebula, M20 (upper left, NE) and the open star cluster M21 (lower right, SW), are close enough together on the sky that they both appear in this wide-field, 51 arc minute square picture taken with the Burrell Schmidt telescope of Case Western Reserve University's Warner and Swasey Observatory located on Kitt Peak, near Tucson, Arizona. The single set of BVR images was taken in June 1996, during the Research Experiences for Undergraduates (REU) program operated at the Kitt Peak National Observatory and supported by the National Science Foundation. Higher resolution images are separately available for M20 and M21.

Credit:

REU program/NOIRLab/NSF/AURA

About the Image

Id:noao-m21a20
Type:Observation
Release date:June 30, 2020, 9:34 p.m.
Size:1500 x 1500 px

About the Object

Name:M20, M21, NGC 6514, NGC 6531, Trifid Nebula
Constellation:Sagittarius
Category:Nebulae

Image Formats

Large JPEG
1.3 MB
Screensize JPEG
522.7 KB

Zoomable


Wallpapers

1024x768
532.0 KB
1280x1024
848.2 KB
1600x1200
992.2 KB
1920x1200
1.0 MB
2048x1536
1.4 MB

Coordinates

Position (RA):18 3 4.23
Position (Dec):-22° 44' 17.98"
Field of view:50.76 x 50.76 arcminutes
Orientation:North is 177.4° right of vertical

Colors & filters

BandTelescope
Optical
R
Burrell Schmidt Telescope
Optical
V
Burrell Schmidt Telescope
Optical
B
Burrell Schmidt Telescope