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
Publication
Status
Published in a refereed paper
Update
2025-02-11
Mass
Mass*sin(i)
Semi-Major Axis
Orbital Period
Eccentricity
Angular distance
0.021818 arcsec
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)
See also Planets in Binaries webpage.

Star

Name
70 Vir A
Distance
22.0 pc
Spectral type
G4 V
Apparent magnitude V
5.0
Apparent magnitude I
Apparent magnitude J
Apparent magnitude H
Apparent magnitude K
Mass
Age
Effective temperature
Radius
Metallicity [Fe/H]
Detected Disc
Magnetic Field
RA2000
13:28:26.0
Dec2000
+13:47:12.0
Alternate Names
HD 117176, GJ 512.1

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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