January - Lunar halo above the Very Large Telescope

An otherworldly image, showing the Moon sur-rounded by a lunar halo on a rare cloudy night, above the four Unit Telescopes of the Very Large Telescope in northern Chile. This optical phenome-non is created when moonlight is refracted by ice and water droplets in the atmosphere. The right-most Unit Telescope beams lasers into the sky to create artificial stars, a technique used to correct for blurring caused by atmospheric turbulence.

Crédit:

J. C. Muñoz-Mateos/ESO

About the Calendar

Id:cal202201
Year:2022
Month:1

Images

Grand JPEG
3,3 Mio
Medium JPEG
25,3 Kio

File Formats

PDF
3,3 Mio