Gliese 521 [SEP] constellation
Gliese 521
Gliese 521 is a red dwarf star in the constellation of Canes Venatici, located roughly 43 light years from the Sun. The star is suspected to host a substellar companion yet unconfirmed.
A planetary companion?
According to Marcy & Benitz (1989) detected a possible periodicity of 510 days, inferring possible presence of a massive planetary object with minimum mass of 12 times that of Jupiter in highly eccentric orbit (e=0.6). So far the planet has not been confirmed.
at least
- Gliese 581d, a planet in the star's habitable zone
- Gliese 667, a triple star system in the constellation of Scorpius containing exoplanet GJ 667 Cc in one of the stars' habitable zone
- Gliese 682, a red dwarf in the constellation of Scorpius with two candidate planets, one of which is in the star's habitable zone
- Gliese 710, a star projected to pass through the Oort Cloud in 1.35 million years
- Gliese 876, a red dwarf approximately 15 light-