Nicholas U. Mayall 4-meter Telescope
Telescope operator, Heidi Schweiker, prepares the Nicholas U. Mayall 4-meter Telescope for a night of observing by cooling the instrumentation with liquid nitrogen.
Credit:NOIRLab/KPNO/NSF/AURA/P. Marenfeld
About the Image
| Id: | noirlab-img-1640 |
| Type: | Photographic |
| Release date: | Aug. 4, 2021, 10:44 a.m. |
| Size: | 5184 x 3456 px |
