Our home galaxy, the Milky Way, appears like a halo of light arching over the MDM Observatory’s Hiltner 2.4-meter Telescope at Kitt Peak National Observatory, a Program of NSF's NOIRLab in this #imageoftheweek. The whites of starlight and bluey black of shadowy trees feel commonplace on a dark night — but the reds in this image seem to cover the environment. What are the red clouds blooming in the sky? Why is there red light on the observatory? The red clouds are emission nebulae, clouds of gasses that have been so energized that they have lost some or all of their electrons. These gasses then emit light at various wavelengths, hence the name. These clouds look red because of the abundance of hydrogen. The largest of these blooms, located at the left end of the arch, is the Gum Nebula. What about the red lights on the ground? In order to function well during dark nights, astronomers need to preserve their night vision. They use red light because it does not disrupt their night vision as much as other colors of light. The very long exposure greatly enhances the faint light from the building and dome. This photo was taken as part of the NOIRLab 2022 Photo Expedition to all the NOIRLab sites. Tomas Slovinský, the photographer, is a NOIRLab Audiovisual Ambassador. Download the high resolution version here: https://lnkd.in/eBdpFXdj Credit: KPNO/NOIRLab/NSF/AURA/T. Slovinský
I almost wonder why you wouldn't want to add red lighting to the interior. But what a place to watch the sky!
I can almost feel the gentle night breeze on my face right now. Would love to be there under those skies!
Barnard' Loop in constellation Orion is easily visible right of the observatory dome, this is a great image. 😁
Less ALAN, please!
Co-founder and Co-Editor at The Galactic Inquirer. US National Astronomy Education Coordinator for the IAU
7moI did not realize until seeing this picture that the Gum Nebula is visible from as far north as Kitt Peak near Tucson.