A February Moon Halo

Astronomy Picture of the Day · 2012-02-11 · NASA (public domain)

A February Moon Halo — APOD for 2012-02-11

Lighting the night last Tuesday, February's Full Moon is sometimes called the Snow Moon. But the Moon was not quite full in this mosaicked skyscape recorded on February 2 south of Budapest, Hungary, and there was no snow either. Still, thin clouds of ice crystals hung in the cold, wintry sky creating this gorgeous lunar halo . Refraction of moonlight by the six-sided crystals produce the slightly colored halo with its characteristic radius of 22 degrees . Just below the Moon is bright star Aldebaran. Also well within the halo at the right is the Pleiades star cluster. At the lower left, near the halo's edge lie the stars of Orion with bright Capella, alpha star of the constellation Auriga , just beyond the halo near the top of the frame.

Astronomy Picture of the Day for 2012-02-11 — image & explanation courtesy of NASA (public domain), mirrored at Tukuk-OS for reading and search convenience.