Corona vs. Halo

The video tutorial explains how observing the moon can reveal different atmospheric phenomena such as lunar halos and coronas. A lunar halo, seen around the bright moon, indicates the presence of high cirrus clouds made of ice crystals. In contrast, a corona, which appears as a bright fuzzy area, suggests middle-level altocumulus clouds composed of water droplets. Historically, these observations have been used for weather forecasting. While theoretically possible, seeing both a corona and a lunar halo simultaneously is rare due to the specific cloud conditions required.

What is the visual phenomenon called that appears as a ring around the moon?

• Corona

• Lunar Halo

• Sunspot

• Aurora

What type of clouds are responsible for creating a lunar Halo?

• Cumulus clouds

• Stratus clouds

• Cirrus clouds

• Nimbus clouds

Which of the following is a characteristic of a corona?

• It is a bright fuzzy area with blue on the inside and red on the outside.

• It is a bright spot on the moon's surface.

• It is a dark shadow cast by the moon.

• It is a ring of light with colors in the order of a rainbow.

What do Halos and coronas indicate about cloud levels?

• Halos indicate high-level clouds, and coronas indicate middle-level clouds.

• Both indicate high-level clouds.

• Halos indicate low-level clouds, and coronas indicate high-level clouds.

• Both indicate low-level clouds.

Is it common to see both a corona and a lunar Halo at the same time?

• Yes, it is very common.

• No, it is not possible.

• In theory, it is possible but not likely in reality.

• Yes, but only during a solar eclipse.