Gravitationally

A survey of distant quasars gravitationally lensed by closer galaxies calculated the Hubble value at six different redshift distances.

Euclid is headed for the Earth-sun Lagrange Point 2 (L2), a gravitationally stable spot about 1.5 million kilometres from Earth.

Open clusters (OCs), formed from the same giant molecular cloud, are groups of a few tens to a few hundred loosely gravitationally bound to one another.

But an unanswered question is whether dark and regular matter only interact gravitationally.

For example, they can help unravel the contours of black holes in binary stars — two stars gravitationally bound to each other.

It will fly past a series of objects known as the Trojan asteroids, which are gravitationally trapped in Jupiter’s orbit.

A globular cluster is a spherical structure of hundreds of thousands to millions of stars, gravitationally bound together.

It’s a very old collection of gravitationally-bound star that formed back when the Milky Way was very young, and it’s almost like a miniature galaxy in itself.

The transfer module will use both ion propulsion and chemical propulsion, in combination with gravity assist flybys at Earth, Venus and Mercury to bring the two science orbiters close enough to Mercury to be gravitationally captured into its orbit.

Unlike galaxies, star clusters are so dense that their stars gravitationally scatter from one another causing them to slowly expand.

A few other galaxies at the periphery may be associated with the group but may not be gravitationally bound.

All forms of energy are believed to interact at least gravitationally, and many authors state that superluminal propagation in Lorentz invariant theories always leads to causal paradoxes.

Among gravitationally bound binary star systems, there exists a so-called log normal distribution of periods, with the majority of these systems orbiting with a period of about 100 years.

A third companion— Proxima Centauri (or Proxima or α Cen C )—has a distance much greater than the observed separation between stars A and B and is probably gravitationally associated with the AB system.

A visual binary is a gravitationally bound system citation that can be resolved into two stars with the aid of a telescope.

By definition long-period comets remain gravitationally bound to the Sun; those comets that are ejected from the Solar System due to close passes by major planets are no longer properly considered as having "periods".

Clusters that have enough mass to be gravitationally bound once the surrounding nebula has evaporated can remain distinct for many tens of millions of years, but over time internal and external processes tend also to disperse them.

Comets are distinguished from asteroids by the presence of an extended, gravitationally unbound atmosphere surrounding their central nucleus.

Gravitational lensing observations of galaxy clusters allow direct estimates of the gravitational mass based on its effect on light coming from background galaxies, since large collections of matter (dark or otherwise) gravitationally deflect light.

However, if it were a rogue planet not gravitationally bound to the Sun, and as far away as 4000 AU, it could be much larger. citation The paper was never formally accepted, and has been withdrawn until the detection is confirmed.