Planet HW Vir (AB)c

Detailed information about planet HW Vir (AB)c and its parameters.

Planet

Name
HW Vir (AB)c
Planet Status
Confirmed
Discovered in
2008
Publication
Status
—
Update
2024-08-24
Mass
Mass*sin(i)
—
Semi-Major Axis
10.0 AU
Orbital Period
Eccentricity
Angular distance
0.070718 arcsec
ω
Tperi
2433100.0 ( +140.0 -120.0 ) JD
Radius
Inclination
—
Detection Method
Timing, Astrometry
Mass Meas. Method
Timing
Radius Meas. Method
Theoretical
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

15 Jun 2012: Lee et al (2009) assigned a mass 8.5 MJup to HW Vir (AB) c. Beuermann 2012v give a mass 65 ± 15 MJup; it would then not be a planet.
Nov. 2008: The object HW Vir (AB) c is named HW Vir 4 in Lee et al (2009)
Aug. 2024: Astrometric search partly validates this signal as planetary in origin.

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Star

Name
HW Vir (AB)
Distance
Spectral type
sdB+M
Apparent magnitude V
10.9
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
12:44:20.0
Dec2000
-08:40:17.0
Alternate Names
—

Eclipsing binary star: M1 = 0.485 MSun, M2 = 0.142 MSun. P = 10084.58 ± 0.01 sec (Beuermann et al. 2012.
The mass for the system is the sum of the masses of the two components.

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