The size and color, at sometime, it will get too old and blow up, like a nova or supernova.
A young star is mostly hydrogen, undergoing nuclear fusion to form helium. As the star gets older, it has steadily more helium. Eventually, when it begins to run out of hydrogen, the helium will undergo fusion to form progressively heavier elements. By looking at the light from the star through a spectroscope, you can see markers that indicate the proportion of different elements, allowing you to estimate the star's age.
"Stars" is a name which does not identify them.
An experienced astronomer will recognize the stars and the constellations; he would either know from experience, for the brighter stars, or be able to look it up in a reference guide for the dimmer stars. Anything that isn't part of the pattern of fixed stars is either a planet, an asteroid or a comet. A little observation with a telescope will tell you which. For the rest of us, I recommend a planetarium program called Stellarium, available for free online at stellarium.org. This is the program that I use whenever someone asks a question like this. :-)
similar age and composition.
Mass and age.
A group of visible stars in the sky that is divided into boundaries is called a constellation. Constellations are patterns formed by stars as seen from Earth and are used for navigation and storytelling in various cultures. Each constellation occupies a specific area of the celestial sphere, making it easier to identify and locate stars.
astronomy
we can easily identify constellation of stars.Constellation is a group of stars that appear to form some recognisable pattern or shape in the sky.some examples of constellation stars are Ursa majors,ursa minor,orion,cassiopeia.
As with everything, stars age as well, and reach the end of their time. As stars age, they become different types of stars, based on how big they are, and how hot they are burning. When they run out of fuel, they eventually die.
Star charts help identify the positions of stars.
The same age as stars in other galaxies.
At the Age of Exploration they used telescope to observe stars.
Identify the noun
I am not sure
Studying Fraunhofer lines helps identify the chemical composition of stars. These lines represent specific wavelengths of light that are absorbed by elements in a star's atmosphere. By analyzing the pattern of these lines, astronomers can determine which elements are present in the star.
It has all types of stars with different ages
Red giant stars.
Astronomers