they don't produce their own light, it all comes from the sun, so the closer to the sun the brighter
Sarasa are usually white with bright red markings
The tail of a comet is longest when the comet is closest to the sun, as the sun's heat causes the comet's icy surface to vaporize, creating a bright glowing tail that streams away from the comet.
a comet
a comet
Comets are the celestial bodies that appear in the sky at regular but long intervals and have a tail. This tail forms as a comet gets closer to the sun, causing ice and dust to vaporize and stream away from the comet, creating a bright extended tail.
A bright stream of gas blown off a comet is called a coma. This coma is created when the sun's heat causes the ice and rocky materials within the comet to vaporize and release gases and dust into space.
The bright glowing gases at the central part of a comet are called the coma. They are produced as the comet comes closer to the sun and the heat causes the ice and other volatile compounds on the comet's surface to sublimate, creating a cloud of gas and dust around the nucleus.
The sun makes a comet appear bright. A comet is usually made up of ice and rock. The ice reflects the light of the sun very well.
Halley's Comet is a short-period comet that orbits the Sun roughly every 76 years. It is named after astronomer Edmond Halley, who calculated its orbit and predicted its return. The comet is known for its bright appearance when it comes close to Earth, with its most recent sighting in 1986.
The new comet, Hale-Bop, was very bright when it came past about 6 years ago.
A comet's tail is formed when the Sun's radiation and the pressure of light drive the very thin gases and very small particles that form the head of a comet away from the head.
Hale-Bopp comet appeared as a bright bluish-white color to observers on Earth. This color was due to the gases and ices present in the comet's nucleus reflecting sunlight.