Planet YY Gem (AB)b

Detailed information about planet YY Gem (AB)b and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name
YY Gem (AB)b
Planet Status
Confirmed
Discovered in
2002
Update
2024-07-12
Mass
47.0 MJ
Mass*sin(i)
47.0 MJ
Semi-Major Axis
15.41 AU
Orbital Period
19785.0 day
Eccentricity
0.11
ω
37.6 deg
Tperi
—
Radius
—
Inclination
—
Detection Method
Timing
Mass Meas. Method
Timing
Radius Meas. Method
—
Primary transit
—
Secondary transit
—
λ
—
Impact Parameter b
—
Time Vr=0
—
Velocity Semiamplitude K
300.0 m/s
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

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Star

Name
YY Gem (AB)
Distance
15.1 pc
Spectral type
M1Ve+M1Ve
Apparent magnitude V
9.27
Mass
0.599 ( ± 0.0047 ) MSun
Age
0.3 Gyr
Effective temperature
3820.0 ( ± 100.0 ) K
Radius
0.6191 ( ± 0.0057 ) RSun
Metallicity [Fe/H]
—
Detected Disc
—
Magnetic Field
—
RA2000
07:34:37.4
Dec2000
+31:52:10.2
Alternate Names
Castor C

Part of Castor (alf Geminorum) multiple system. Located 73 arcseconds away from Castor (1140 AUs at 15.6 pc), YY Gem is a close binary with P = 0.81428254 d whose components are almost identical.

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