Planet GJ 752 Ab

Detailed information about planet GJ 752 Ab and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name
GJ 752 Ab
Planet Status
Confirmed
Discovered in
2018
Update
2024-07-31
Mass
0.0384 ( +0.003 -0.0044 ) MJ
Mass*sin(i)
0.0384 ( +0.003 -0.0044 ) MJ
Semi-Major Axis
0.3357 ( +0.0099 -0.01 ) AU
Orbital Period
105.9 ( +0.09 -0.1 ) day
Eccentricity
0.16 ( +0.05 -0.1 )
ω
269.0 ( +30.0 -45.0 ) deg
Tperi
—
Radius
—
Inclination
—
Detection Method
Radial Velocity
Mass Meas. Method
Radial Velocity
Radius Meas. Method
—
Primary transit
—
Secondary transit
—
λ
—
Impact Parameter b
—
Time Vr=0
—
Velocity Semiamplitude K
2.85 ( +0.16 -0.25 ) m/s
Calculated temperature
—
Measured temperature
—
Hottest point longitude
—
Geometric albedo
—
Surface gravity log(g/gH)
—
Alternate Names
HD 180617 b, Wolf 1055 Ab
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
GJ 752 A
Distance
5.9116 ( ± 0.018 ) pc
Spectral type
M2.5V
Apparent magnitude V
9.115
Mass
0.45 ( ± 0.04 ) MSun
Age
5.5 ( ± 4.5 ) Gyr
Effective temperature
3557.0 ( ± 51.0 ) K
Radius
0.453 ( ± 0.019 ) RSun
Metallicity [Fe/H]
—
Detected Disc
—
Magnetic Field
—
RA2000
19:16:55.3
Dec2000
+05:10:08.0
Alternate Names
HD 180617, Wolf 1055 A

Kaminski et al. (2018): GJ 752 (Wolf 1055 A or HD 180617) is the primary of the proper motion pair that also contains the M8.0V dwarf at stellar-substellar boundary vB 10 (GJ 725 B or Wolf 1055 B, mB = 0.07 MSol) with a separation of 76 arseconds (450 AUs).

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