Population I stars have more metals (heavier elements), and are generally younger, than the Population II stars. It is postulated that there are still older Population III stars, that have even less metals and are even older, but none have been discovered yet.
Two stars orbiting each other are "binary stars" ...a group of stars near each other, may be formally or informally known as a "cluster".
Two stars that are gravitationally bound to each other are sometimes called "binary stars".
different
no because stars can orbit each other
In most cases, no. In many cases they're nowhere near each other in three-dimensional space, and only appear to be near each other from our vantage point. There are a couple of notable exceptions; for example, most of the bright stars in Ursa Major (including all the stars in the "big dipper" except for Alpha and Eta, which are the ones at each end) are part of the Ursa Major Moving group (not quite a cluster, but definitely associated with each other).
Where are the stars in a constellation located relative to each other
No. The stars will influence each other gravitationally, and eventually change their orbits.No. The stars will influence each other gravitationally, and eventually change their orbits.No. The stars will influence each other gravitationally, and eventually change their orbits.No. The stars will influence each other gravitationally, and eventually change their orbits.
Binary stars.
Two stars orbiting each other are "binary stars" ...a group of stars near each other, may be formally or informally known as a "cluster".
A pair of stars orbiting around each other are called binary stars.
A pair of stars orbiting around each other are called binary stars.
Open Cluster
its two stars that share the same orbit around each other
no stars are not close together in a contellestion
Two stars that are gravitationally bound to each other are sometimes called "binary stars".
no
Binary stars.