How do star trails form?

Answer 1

Stars usually don't have "trails". If you see a "shooting star", that is not really a star, but a piece of dust that happens to fall into the atmosphere. It is also possible that you confuse this with pictures you saw of comets.

Answer 2

A group of stars that makes a picture in the night sky is known as a constellation.

The stars in each constellation generally are completely unconnected being many 10's or 100's of light years apart. The only thing they have in common is the direction they are from earth.

An example of this is in the southern constellation of Centaurus. The brightest star Alpha Centauri (actually a triple star system) are our closest stars to earth Proxima Centauri is a mere 4.2 light years with Alpha Centauri A and B at 4.3 light years. The next brightest star and the next star in the Centaurus Picture (see related link) is the star Beta Centauri or Hadar. It is about 350 light years away.

Answer 3

You call them a Space Photographer or a Star Capturer. An Astrophotographer. (Or an astronomer).

Answer 4

stars are just there. They don't make constilations. people base it on what it looks like.

Answer 5

a constellation

Answer 6

Constellations.

Answer 7

Constellation

Answer 8

That is called a constellation.