61 Virginis d
From Infogalactic: the planetary knowledge core
Exoplanet | List of exoplanets | |
---|---|---|
Parent star | ||
Star | 61 Virginis | |
Constellation | Virgo | |
Right ascension | (α) | 13h 18m 24.3s |
Declination | (δ) | −18° 18′ 40.3″ |
Apparent magnitude | (mV) | 4.74 |
Distance | 27.8±0.2 ly (8.52±0.05 pc) |
|
Spectral type | G5V | |
Mass | (m) | 0.95+0.04 −0.03 M☉ |
Radius | (r) | 0.940+0.034 −0.029 R☉ |
Temperature | (T) | 5585 K |
Metallicity | [Fe/H] | −0.02 |
Age | 6.1–6.6 Gyr | |
Orbital elements | ||
Semi-major axis | (a) | 0.476±0.001 AU (71.2 Gm) |
Periastron | (q) | 0.311 AU (46.6 Gm) |
Apastron | (Q) | 0.640 AU (95.8 Gm) |
Eccentricity | (e) | 0.35±0.09 |
Orbital period | (P) | 123.01±0.55 d (0.33678 y) |
Orbital speed | (υ) | 42.2 km/s |
Argument of periastron |
(ω) | 314±20° |
Time of periastron | (T0) | 2453369.166 JD |
Physical characteristics | ||
Minimum mass | (m sin i) | 22.9±2.6 M⊕ |
Discovery information | ||
Discovery date | 2009-12-14 | |
Discoverer(s) | Vogt et al. | |
Discovery method | Radial velocity | |
Discovery site | Keck Observatory Anglo-Australian Observatory |
|
Discovery status | Unconfirmed[1] | |
Database references | ||
Extrasolar Planets Encyclopaedia |
data | |
SIMBAD | data | |
Exoplanet Archive | data | |
Open Exoplanet Catalogue | data |
61 Virginis d (abbreviated 61 Vir d) is a proposed exoplanet orbiting the 5th apparent-magnitude G-type main-sequence star 61 Virginis in the constellation Virgo. 61 Virginis d would have a minimum mass of 22.9 times that of Earth and orbits nearly one-half the distance to the star as Earth orbits the Sun with an eccentricity of 0.35. This planet would most likely be a gas giant like Uranus and Neptune.
This planet was induced on 14 December 2009 from using a precise radial velocity method taken at Keck and Anglo-Australian Observatories.[2][3] As of 2012 it has not been confirmed by other measurements such as from HARPS.[1]
References
External links
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Coordinates: 13h 18m 24.3s, −18° 18′ 40.3″
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