2024年10月24日 · Lunar halos are caused by thin, wispy, cirrus and cirrostratus clouds and refraction and reflection of moonlight by the clouds' ice crystals. Below, we explore the lunar spectacle of a ring...

2023年5月31日 · Have you ever looked up and spotted a large ring of light around the sun or moon? Scientists refer to these as 22-degree halos. They got that name because the radius of the circle is always...

Cirrus clouds, at a height of 6,000m (20,000ft) or more in the atmosphere, contain tiny ice crystals that originate from the freezing of water droplets. These ice crystals refract, or bend, light just …

2023年12月4日 · It looks like a ring around the Moon, a delicate circle of off-white light with the Moon sitting perfectly in its center. This rare event is called a Moon halo. It happens when moonlight bends through lots of six-sided ice crystals in the Earth’s atmosphere to create a huge, perfect circle of light.

A 22° halo is an atmospheric optical phenomenon that consists of a halo with an apparent diameter of approximately 22° around the Sun or Moon. Around the Sun, it may also be called a sun halo. [1] . Around the Moon, it is also known as a moon ring, storm ring, or winter halo.

2022年11月28日 · The moon's halo or lunar halo is an optical illusion that causes a large bright ring to surround the moon.

2024年1月6日 · If you've ever looked up at the full moon in the night sky, you may have noticed a large halo of light around it. But why does this lustrous ring sometimes encircle our natural satellite?

2016年1月27日 · This ring surrounding the Moon is caused by the refraction of Moonlight (which is really reflected sunlight, of course) through ice crystals suspended in the upper atmosphere between 5-10 km in...

2023年12月25日 · The lunar or moon halo is an optical illusion that gives the moon a big, dazzling ring around it. The refraction of moonlight by ice crystals in the high atmosphere creates this...

2020年8月2日 · Short answer: It's called a Moon halo, Moon ring, winter ring or 22° halo. It's caused by moonlight being refracted (bent) through ice crystals in the atmosphere. Long Answer: This answer is specifically about the large well-defined ring as pictured above.