Planet 70 Vir Ab

Detailed information about planet 70 Vir Ab and its parameters.

Planet

Name
70 Vir Ab
Planet Status
Confirmed
Discovered in
1996
Update
2024-08-06
Mass
6.6 MJ
Mass*sin(i)
Semi-Major Axis
Orbital Period
Eccentricity
ω
Tperi
Radius
Inclination
Detection Method
Radial Velocity
Mass Meas. Method
Radius Meas. Method
Primary transit
Secondary transit
λ
Impact Parameter b
Time Vr=0
Velocity Semiamplitude K
Calculated temperature
Measured temperature
Hottest point longitude
Geometric albedo
Surface gravity log(g/gH)
Alternate Names
Data Source Type Result Value Result Figure Notes Reference
Molecule Data Source Type Result Value Result Figure Notes Reference

22 Nov. 00: From astrometry Han et al (2000) claim a preliminary mass of 27 MJ and inclination of 16.1 deg
The object at 0.43 UA is interpreted by Mazeh et al. 1996 to be a brown dwarf, in view of its high eccentricity e = 0.4
Upper mass limit of 38 MJ given by Hipparcos (Perryman et al. 1996)

Star

Fontanive et al. (2019) detect an ultracool M dwarf companion star at the stellar-substellar boundary (m = 0.08 MSol, spT M8V) 52 AUs away. An additional ultracool companion, possibly a circumbinary brown dwarf (m = 0.07 MJup, spT L), was reported by Pinfield et al. (2006) at 848 AUs but to date there has been no confirmation.

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