Question

why comets look like a coma in sky​

Answer 1

Explanation:

• By the time the comet comes within about 5 AU of the Sun, sublimation has formed a noticeable atmosphere that easily escapes the comet's weak gravity. The coma forms as the escaping atmosphere drags away dust particles that have been mixed with the sublimating ice.

Answer 2

By the time the comet comes within about 5 AU of the Sun, sublimation has formed a noticeable atmosphere that easily escapes the comet's weak gravity. The coma forms as the escaping atmosphere drags away dust particles that have been mixed with the sublimating ice.