Basically the evaporated gas of whatever the comet nucleus is made of. Often methane, ammonia, carbon mon- and di-oxide. A very good article is in the link below. However, due to relative motion and a few other forces, the tail is not all that straight.
I don't think it would stretch out. The tail is the result of the comet evaporating; the tail goes away from the Sun, as a result of the solar wind.
The nucleus of a comet is mostly solid, while the coma and tail of the comet is composed of gasses and (we believe) a lot of dust. As the comet approaches the Sun, sunlight heats the nucleus of the comet and melts some of the frozen gasses, which sublimate into space carrying dust into space, forming the coma and the tail of the comet.
Comet
Close to or at perihelion.
Good question,but NO comets do not really have lots of gravity to have a atmosphere.But they have two tails i'll tell you what they are called,one is a Rocky Tail while another is an ion tail that extends millions of miles into space. They also have a nucleus, which is basically the center of the comet. So hoped I helped ya!! :)
The tail of a comet is shaped by the solar wind, which pushes the gas and dust particles emitted from the comet's nucleus away from the Sun. The particles are ionized by sunlight and are then affected by the Sun's magnetic field, forming the distinctive shimmering tail.
A comet produces a shimmering tail that lasts a few days when it approaches the sun. This tail forms as sunlight vaporizes the comet's icy nucleus, releasing dust and gas that reflect sunlight to create a glowing effect.
A comet is an object that produces a shimmering tail that can last for days as it travels through space, reflecting sunlight and creating a dazzling display.
tail
tail
a tail
The tail of a comet is over a million miles long.
Solar winds blow the debris of the traveling comet to make it appear it has a tail.
The tail
Sure. As a comet approaches the sun, the comet sheds some of its material, which trails behind it for millions of kilometers. It is this tail that is the most visible part of a comet. In fact, the word comet means "hairy star," referring to the long, streaming tail. In 1910, the earth actually passed through the tail of Halley's Comet.
It's tail
tail