Brilliant Halo at La Silla

A spectacular lunar halo — known as a 22° halo — formed in the sky above ESO’s La Silla Observatory. The optical phenomenon is a result of moonlight interacting with millions of ice crystals suspended in the atmosphere, forming a ring with an apparent radius of approximately 22° around the moon. It is also known as the “moon ring” or “winter halo”.

While this is a beautiful sight, it creates conditions which are not optimal for astronomical observations. Clouds and the bright light of the moon affect the quality and accuracy of astronomical observations. However, that does not diminish the allure of this ethereal sight, and in fact some stars remain visible. Notably, Sirius, the brightest star in the night sky, can be seen at the top edge of the image, just left of the centre.

Të drejtat:

ESO/Y. Beletsky (LCO)

Rreth fotografisë

Id:potw2126a
Tipi:Fotografik
Data e Publikimit:Qer 28, 2021, 06:00 CEST
Përmasat:4531 x 5665 px

Rreth objektit

Emri:La Silla, Moon
Tipi:Unspecified : Sky Phenomenon : Light Phenomenon : Halo : Circle
Kategori:La Silla

Formate Fotografish

JPEG i madh
4,8 MB
Publikim JPEG
2,4 MB

E zmadhueshme


Wallpaper

1024x768
131,2 KB
1280x1024
213,6 KB
1600x1200
303,2 KB
1920x1200
343,7 KB
2048x1536
514,1 KB