Gliese 504 b

Template:Planetbox begin Template:Planetbox star

Template:Planetbox separation Template:Planetbox character Template:Planetbox discovery Template:Planetbox catalog Template:Planetbox reference Template:Planetbox end

GJ 504 b is a Jovian planet in the system of the young solar analogue 59 Virginis (GJ 504), announced in 2013 by direct imaging using 8-meter Subaru Telescope of Mauna Kea Observatory, Hawai'i, by Kuzuhara et al. The discovery images were taken in 2011—2012.^[1]

Properties

Spectral type of this planet is late T – early Y; its effective temperature is 510⁺³⁰
₋₂₀ K, much cooler than previously imaged exoplanets with a clear planetary origin. Its mass is 4.0^+4.5
_−1.0 M_Jup. It is also one of the oldest extrasolar planets directly imaged with the age of 100-500 million years.

The angular separation of the planet from its host star is about 2.5 arcseconds, corresponding to projected separation of 43.5 AU.^[1]

References

^ ^a ^b Kuzuhara, M. (2013). "Direct Imaging of a Cold Jovian Exoplanet in Orbit around the Sun-like Star GJ 504". arXiv:1307.2886. {{cite arXiv}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)

External links

Simbad (GJ 504 b -- Extra-solar Planet Candidate)

[Kuzuhara2013-1] Kuzuhara, M. (2013). "Direct Imaging of a Cold Jovian Exoplanet in Orbit around the Sun-like Star GJ 504". arXiv:1307.2886. {{cite arXiv}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)

[1]