Planet HD 155918 Ac

Detailed information about planet HD 155918 Ac and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name
HD 155918 Ac
Mass
5.909 ( +0.653 -0.766 ) MJ
Mass*sin(i)
—
Semi-Major Axis
13.183 ( +1.17 -1.179 ) AU
Orbital Period
17202.2 ( +2100.8 -1950.0 ) day
Eccentricity
0.071 ( +0.051 -0.053 )
ω
182.687 ( +20.491 -22.798 ) deg
Tperi
—
Radius
—
Inclination
31.771 ( +2.806 -2.131 ) deg
Primary transit
—
Secondary transit
—
λ
—
Impact Parameter b
—
Time Vr=0
—
Velocity Semiamplitude K
24.023 ( +1.315 -1.684 ) m/s
Calculated temperature
—
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

See also Planets in Binaries webpage.

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Star

Name
HD 155918 A
Distance
27.561 ( ± 0.02265 ) pc
Spectral type
G2V
Apparent magnitude V
7.04
Apparent magnitude I
—
Apparent magnitude J
—
Apparent magnitude H
—
Apparent magnitude K
—
Mass
1.03 ( ± 0.131 ) MSun
Age
—
Effective temperature
5771.84 ( ± 105.791 ) K
Radius
1.019 ( ± 0.0439 ) RSun
Metallicity [Fe/H]
-0.661 ( ± 0.024 )
Detected Disc
—
Magnetic Field
—
RA2000
17:22:12.6
Dec2000
-75:20:53.3
Alternate Names
—

Gaia Collaboration (2023): HD 155918 is shown to have a candidate companion star, possibly an M dwarf, 3.66 arcseconds away (100 AUs at 27.5 pc).

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