Binary Stars
When objects are bound gravitationally in centrifugal motion, the objects are said to be in orbit of each other.
A binary star.
If the object is gravitationally bound to the sun, it is part of the solar system. If not, not.
The planet Mars is gravitationally bound to the Sun. The Sun is the primary celestial body in our solar system. All the planets in the solar system (Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune) revolve around the Sun.
The Hubble Space Telescope is gravitationally bound to the world but is nowhere in the world. It is orbiting the earth in a nearly circular path 240 miles above the surface, completing one revolution every 100 minutes or so. I don't know the inclination of its path to the equator.
"An open cluster is a group of a few thousand stars that were formed in the same giant molecular cloud, and are still loosely gravitationally bound to each other.In contrast, globular clusters are very tightly bound by gravity.a large cloud of stars
Probably "moving group". If they're still gravitationally bound, then "open cluster" is a better term.
determine which stars are gravitationally bound to each other
When objects are bound gravitationally in centrifugal motion, the objects are said to be in orbit of each other.
The "Local Group" refers to a group of nearby galaxies, that are gravitationally bound (much like a galaxy itself, a star cluster, or a solar system). This local group includes our own galaxy - the Milky Way - as well as several galaxies in a diameter of about 10 million light-years. The Milky Way is included because it is inside this group, and gravitationally bound by it.
No, a globular cluster is a gravitationally bound cluster of stars withing a galaxy. A quasar is formed from a supermassive black hole pulling in huge quantities of matter, superheating it and producing enormous quantities of energy far more efficiently than any star or group of stars.
They are so massive that they remain gravitationally bound to together.
A binary star.
A binary star.
Two stars that are gravitationally bound to each other are sometimes called "binary stars".
A binary star is a system of two stars gravitationally bound together that are constantly orbiting each other.
The stars are said to be a "gravitational binary pair"