Gliese 623
Encyclopedia
Gliese 623 is a dim double star
lying 25 light years from Earth. It was photographed by the NASA/ESA Hubble Space Telescope
's Faint Object Camera
in 1994. The binary system consists of two red dwarf
stars orbiting each other at a distance of 1.9 astronomical unit
s.
Double star
In observational astronomy, a double star is a pair of stars that appear close to each other in the sky as seen from Earth when viewed through an optical telescope. This can happen either because the pair forms a binary star, i.e...
lying 25 light years from Earth. It was photographed by the NASA/ESA Hubble Space Telescope
Hubble Space Telescope
The Hubble Space Telescope is a space telescope that was carried into orbit by a Space Shuttle in 1990 and remains in operation. A 2.4 meter aperture telescope in low Earth orbit, Hubble's four main instruments observe in the near ultraviolet, visible, and near infrared...
's Faint Object Camera
Faint Object Camera
The Faint Object Camera was a camera installed on the Hubble Space Telescope from launch in 1990 until 2002. It was replaced by the Advanced Camera for Surveys.The camera was built by Dornier GmbH and was funded by the European Space Agency...
in 1994. The binary system consists of two red dwarf
Red dwarf
According to the Hertzsprung-Russell diagram, a red dwarf star is a small and relatively cool star, of the main sequence, either late K or M spectral type....
stars orbiting each other at a distance of 1.9 astronomical unit
Astronomical unit
An astronomical unit is a unit of length equal to about or approximately the mean Earth–Sun distance....
s.