GJ 3293 (sometimes Gliese 3293) is a
star
A star is an astronomical object comprising a luminous spheroid of plasma (physics), plasma held together by its gravity. The List of nearest stars and brown dwarfs, nearest star to Earth is the Sun. Many other stars are visible to the naked ...
in the
constellation
A constellation is an area on the celestial sphere in which a group of visible stars forms Asterism (astronomy), a perceived pattern or outline, typically representing an animal, mythological subject, or inanimate object.
The origins of the e ...
of
Eridanus, that is orbited by four
planets
A planet is a large, rounded astronomical body that is neither a star nor its remnant. The best available theory of planet formation is the nebular hypothesis, which posits that an interstellar cloud collapses out of a nebula to create a young ...
, two of which (GJ 3293b & GJ 3293d) are located within the star's
habitable zone. It is located at the
celestial coordinates
Astronomical coordinate systems are organized arrangements for specifying positions of satellites, planets, stars, galaxies, and other celestial objects relative to physical reference points available to a situated observer (e.g. the true hor ...
: Right Ascension , Declination .
[ With an apparent visual magnitude of 11.96,][ this star is too faint to be seen with the naked eye. It can be viewed with a telescope having an aperture of at least . The estimated distance to GJ 3293 is , based on its ]stellar parallax
Stellar parallax is the apparent shift of position of any nearby star (or other object) against the background of distant objects, and a basis for determining (through trigonometry) the distance of the object. Created by the different orbital p ...
.[ GJ 3293 is significantly smaller and cooler than the Sun.][
]
Planetary system
In 2015, it was discovered that GJ 3293 possessed two planets,[ and in 2017 an additional two planets were discovered, making a total of four.]
References
M-type main-sequence stars
Planetary transit variables
3293
J04283571-2510088
Planetary systems with four confirmed planets
Eridanus (constellation)
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