Planet HD 178450 (AB)b

Detailed information about planet HD 178450 (AB)b and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name
HD 178450 (AB)b
Planet Status
Confirmed
Discovered in
2020
Update
2024-11-01
Mass
19.0 ( ± 9.0 ) MJ
Mass*sin(i)
—
Semi-Major Axis
462.0 AU
Orbital Period
—
Eccentricity
—
ω
—
Tperi
—
Radius
1.31 RJ
Inclination
67.0 ( ± 12.0 ) deg
Detection Method
Imaging
Mass Meas. Method
Spectrum
Radius Meas. Method
—
Primary transit
—
Secondary transit
—
λ
—
Impact Parameter b
—
Time Vr=0
—
Velocity Semiamplitude K
—
Calculated temperature
1740.0 ( ± 130.0 ) K
Measured temperature
—
Hottest point longitude
—
Geometric albedo
—
Surface gravity log(g/gH)
—
Alternate Names
*V478 Lyr C
Data Source Type Result Value Result Figure Notes Reference
Molecule Data Source Type Result Value Result Figure Notes Reference

Marocco, 202O : Spectral type L0β to L1. The estimated orbital period for this system is ≳8000 yr,

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Star

Name
HD 178450 (AB)
Distance
27.0958 pc
Spectral type
G8V
Apparent magnitude V
—
Mass
0.891 MSun
Age
0.23 ( +0.14 -0.13 ) Gyr
Effective temperature
5285.05 K
Radius
0.903 RSun
Metallicity [Fe/H]
—
Detected Disc
—
Magnetic Field
—
RA2000
19:07:32.4
Dec2000
+30:15:16.2
Alternate Names
*V478 Lyr

Fekel et al. (1988): Spectroscopic binary with period 2.130514 d. The unseen secondary of HD 178450 has a mass of about 0.3 solar masses and is believed to be an M2-M3 dwarf.

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