Planet GJ 802 (AB)b

Detailed information about planet GJ 802 (AB)b and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name
GJ 802 (AB)b
Planet Status
Confirmed
Discovered in
2005
Update
2024-08-29
Mass
63.0 ( ± 5.0 ) MJ
Mass*sin(i)
—
Semi-Major Axis
1.32 ( ± 0.09 ) AU
Orbital Period
1104.0 ( ± 9.0 ) day
Eccentricity
0.35 ( ± 0.05 )
ω
222.5 ( ± 25.5 ) deg
Tperi
—
Radius
—
Inclination
82.7 ( ± 3.0 ) deg
Detection Method
Astrometry
Mass Meas. Method
Astrometry
Radius Meas. Method
—
Primary transit
—
Secondary transit
—
λ
—
Impact Parameter b
—
Time Vr=0
—
Velocity Semiamplitude K
—
Calculated temperature
1400.0 K
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

Spectral type L5-L7.

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Star

Name
GJ 802 (AB)
Distance
17.1396 ( ± 0.0418 ) pc
Spectral type
M5Ve+M5Ve
Apparent magnitude V
—
Mass
0.175 ( ± 0.021 ) MSun
Age
2.0 Gyr
Effective temperature
3200.0 K
Radius
0.2045 ( ± 0.0088 ) RSun
Metallicity [Fe/H]
15.47
Detected Disc
—
Magnetic Field
—
RA2000
20:43:19.3
Dec2000
+55:20:53.1
Alternate Names
LLO 1, Wolf 1084

Ireland et al. (2008) found that the GJ 802 is a non-eclipsing binary with an orbital period of 19 hours (P = 0.79534 d ) and a nearly equal-mass companion star.

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