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
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
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
—
Surface gravity log(g/gH)
—
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
—
Apparent magnitude I
—
Apparent magnitude J
—
Apparent magnitude H
—
Apparent magnitude K
—
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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