A star, like the sun is a large burning ball of gases. Group of stars made constellation which seen in night sky in many shapes
Asterism. A group of stars that forms a certain shape - from our point of view.
the shape of the stars the shape of the stars
You can pick any group of stars that seem to form a certain shape. That would be an asterism.
Stars are distant suns, which are roughly spherical in shape.
All stars are approximately spherical.
they are the same shape, a circle
Spherical
no
A constellation is defined as a certain "area" in the sky - similar to the lines that divide countries on a continent. All the stars in that general direction are part of the constellation - millions of them, or billions or trillions, if you include stars that are faint enough.
it does not have a certain shape!
A solid has a volume and a shape a liquid has a volume but no certain shape a gas has no certain volume and no certain shape
All the stars and planets came from the strong explosion called the big bang that released radiation and particles as well as cloud of atoms. When gravity pulled them together they formed stars.