Planet GJ 777 Ad

Detailed information about planet GJ 777 Ad and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name
GJ 777 Ad
Planet Status
Confirmed
Discovered in
2020
Update
2024-08-03
Mass
0.032 ( ± 0.004 ) MJ
Mass*sin(i)
—
Semi-Major Axis
0.3947 ( +0.0007 -0.0004 ) AU
Orbital Period
88.9 ( +0.2 -0.1 ) day
Eccentricity
0.1 ( ± 0.1 )
ω
-0.7 ( +2.4 -1.1 ) 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
1.5 ( ± 0.2 ) m/s
Calculated temperature
—
Measured temperature
—
Hottest point longitude
—
Geometric albedo
—
Surface gravity log(g/gH)
—
Alternate Names
HD 190360 d
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 777 A
Distance
16.0069 ( ± 0.0159 ) pc
Spectral type
G5IV-V
Apparent magnitude V
5.74
Mass
0.98 ( ± 0.1197 ) MSun
Age
8.2 Gyr
Effective temperature
5549.0 ( ± 111.723 ) K
Radius
1.168 ( ± 0.0536 ) RSun
Metallicity [Fe/H]
0.19 ( ± 0.1 )
Detected Disc
—
Magnetic Field
—
RA2000
20:03:37.0
Dec2000
+29:53:48.0
Alternate Names
HR 7670, LAL 38380, LDS 6339 A, HD 190360

GJ 777 has a faint M dwarf companion star (G 125-55 or GJ 777 B, spT M4.5V) 2849 AUs away which in turn could be an unresolved binary with a similar companion (a ~70 AUs).

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