Skip to main content

Lunar Halo over Snowy Trees

Posted by Specola Profile 02/01/21 at 12:16PM Science - Tech - Astronomy See more by Specola

NASA Astronomy Picture of the Day:

Have you ever seen a halo around the Moon? This fairly common sight occurs when high thin clouds containing millions of tiny ice crystals cover much of the sky. Each ice crystal acts like a miniature lens. Because most of the crystals have a similar elongated hexagonal shape, light entering one crystal face and exiting through the opposing face refracts 22 degrees, which corresponds to the radius of the Moon Halo. A similar Sun Halo may be visible during the day. Exactly how ice-crystals form in clouds remains a topic of research. In the featured image taken last week from Östersund, Sweden, a complete lunar halo was captured over snowy trees and rabbit tracks. APOD is available via Instagram: in English, Indonesian, Persian, and Portuguese

Photo by Göran Strand

Share some of your memories and history of Camano Island

100% Satisfaction - 360-572-4737

360-454-6973 - Camano Island, WA

SECURITY & SURVEILLANCE SYSTEMS - HOME AUDIO  425-379-7733

Hunger impacts all of us | 360-435-1631

Snohomish, Skagit and Island County

Serving Stanwood, Camano Island, South Skagit County, and North Snohomish.

olsonplumbingservice.com     -      425-504-0224