In the original films, he trains Luke Skywalker to fight against the evil Galactic Empire.

Distances like this are typical inside galactic discs, including in the vicinity of the solar system.

The galactic coordinate system is a celestial coordinate system in spherical coordinates, with the Sun as its center, the primary direction aligned with the approximate center of the Milky Way galaxy, and the fundamental plane approximately in the galactic plane.

Distances accurate to 10 will be achieved as far away as the Galactic Centre, 30,000 light years away.

This area is considered an observational window as the normally obscured Galactic Center of the Milky Way is visible in this direction.

Stars can be much closer to each other in the centres of galaxies and in globular clusters, or much farther apart in galactic halos.

It has also been used to estimate the age of the Milky Way itself, as exemplified by recent study of Cayrel's Star in the Galactic halo.

85 87Because of dynamical relaxation, some objects will gain enough energy to reach galactic escape velocity and depart the galaxy, leaving behind a smaller, denser galaxy.

Galactic context The Solar System is located in the Milky Way, a barred spiral galaxy with a diameter of about 100,000 light years containing about 200 billion stars.

The Gould Belt is a partial ring of stars in the Milky Way, about 3000 light years across, tilted toward the galactic plane by about 16 to 20 degrees.

The galactic year, also known as a cosmic year, is the duration of time required for the Solar System to orbit once around the center of the Milky Way Galaxy.

Gallery See also Whirlpool Galaxy References External links Astronomy Picture of the Day The Antennae Galaxies (10 22 1997) Astronomy Picture of the Day The Antennae (04 29 2011) Astronomy Picture of the Day The Antennae (02 12 2015) The Register Galactic prang fingered in star formation mystery ESA Hubble News Release ESA Hubble images of Antennae Galaxies Animations of galactic collision producing antennae structures Antennae Galaxies at Constellation Guide

In the context of the film, this is a deep space battle station of the Galactic Empire, capable of annihilating planets and civilizations, and in reality it measures about four feet by two feet.

The following astrophysical research took place Platan, study of the components and spectra of galactic cosmic rays in order to verify methods of ensuring radiation security for the crew and the durability of space products.

The Heart of Gold is chased by the Vogons, led by Galactic Vice President Questular Rontok, who is attempting to rescue Zaphod from himself, after an incident in which Zaphod kidnapped himself in order to forgo presidential duties.

Interplanetary space Interplanetary space, the space around the Sun and planets of the Solar System, is the region dominated by the interplanetary medium, which extends out to the heliopause where the influence of the galactic environment starts to dominate over the magnetic field and particle flux from the Sun.

And even though, due to a relativistic effect known as time dilation, our clocks would seem to slow down relative to galactic time, it would look as though the evolution of the galaxy had been sped up and shot at us, right before we were crushed to death by the black hole.