A lot really depends on your classification of what a star is [See related question]
However, in the general terminology of a star:
In almost all cases, the sole thing all the stars in one constellation have in common is that they APPEAR to us to be in roughly the same place in the sky, and they form a picture of something we identify with - like a Dipper. In reality, the stars of what we call a "constellation" are only rarely related to each other in any way, and how they appear to us as "constellatons" is purely coincidental.
Yes. Around 76% of the stars are low luminosity stars.
They produce light.
the properties that the sun has in common with other stars is that its made of hot gases and is also a star
The most common type is main-sequence stars. This is a fairly broad category; within it, the most common type is red dwarves.
they all have stars.
production of light
there all made of the same thing
All of them have stars and space dust for sure.
We are all made of stardust
All of them - but mostly hydrogen & helium.
main sequence stars all are burning though fuel at asteadyrate in there cores. with the proton+proton chain our sun is a main sequence star
Starfish is a common name for what are called sea stars. As explained by the name, sea stars exist in all of Earth's oceans. No sea stars are found in freshwater environments.
No, in fact they are quite common. Many stars that, with the naked eye, look like a single star, are actually double or multiple stars.
In almost all cases, the sole thing all the stars in one constellation have in common is that they APPEAR to us to be in roughly the same place in the sky, and they form a picture of something we identify with - like a Dipper. In reality, the stars of what we call a "constellation" are only rarely related to each other in any way, and how they appear to us as "constellatons" is purely coincidental.
all movie stars
It's a common starfish. -- There is actually no such thing as a "starfish", as they are not fish. They are Sea Stars. There are many different kinds, but they are all sea stars and not starfish.