Planet alf Per b

Detailed information about planet alf Per b and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name

alf Per b

Mass

6.6 (\begin{matrix} + 0.2 \\ - 0.2 \end{matrix})

M_J

Mass*sin(i)

—

Semi-Major Axis

0.97 AU 1 publication

Detection of the 128 day radial velocity variations in the supergiant α Persei. Rotational modulations, pulsations, or a planet?

Orbital Period

128.2 (\pm 0.1)

day 1 publication

Detection of the 128 day radial velocity variations in the supergiant α Persei. Rotational modulations, pulsations, or a planet?

Eccentricity

0.1 (\pm 0.04)

1 publication

Detection of the 128 day radial velocity variations in the supergiant α Persei. Rotational modulations, pulsations, or a planet?

ω

208.37 (\pm 12.36)

deg 1 publication

Detection of the 128 day radial velocity variations in the supergiant α Persei. Rotational modulations, pulsations, or a planet?

T_peri

2451513.0 (\pm 4.91)

Radius

—

Inclination

—

Primary transit

—

Secondary transit

—

λ

—

Impact Parameter b

—

Time V_r=0

—

Velocity Semiamplitude K

—

Calculated temperature

—

Measured temperature

—

Hottest point longitude

—

Surface gravity log(g/g_H)

—

Data Source	Type	Result Value	Result Figure	Notes	Reference

Molecule	Data Source	Type	Result Value	Result Figure	Notes	Reference

22 May 2012: This object in uncertain since the RV variation could be due to stellar pulasations or rotational modulations (Lee et al. 2012)

No link

Star

Name

alf Per

Distance

156.0 (\pm 4.0)

pc 1 publication

Detection of the 128 day radial velocity variations in the supergiant α Persei. Rotational modulations, pulsations, or a planet?

Spectral type

F5Ib

Apparent magnitude V

1.82

Apparent magnitude I

—

Apparent magnitude J

—

Apparent magnitude H

—

Apparent magnitude K

—

Mass

7.3 (\pm 0.3)

M_Sun 1 publication

Detection of the 128 day radial velocity variations in the supergiant α Persei. Rotational modulations, pulsations, or a planet?

Age

0.041

Gyr 1 publication

Detection of the 128 day radial velocity variations in the supergiant α Persei. Rotational modulations, pulsations, or a planet?

Effective temperature

6350.0 (\pm 100.0)

K 1 publication

Detection of the 128 day radial velocity variations in the supergiant α Persei. Rotational modulations, pulsations, or a planet?

Radius

55.0

R_Sun 1 publication

Detection of the 128 day radial velocity variations in the supergiant α Persei. Rotational modulations, pulsations, or a planet?

Metallicity [Fe/H]

-0.07 (\pm 0.09)

1 publication

Detection of the 128 day radial velocity variations in the supergiant α Persei. Rotational modulations, pulsations, or a planet?

Detected Disc

—

Magnetic Field

—

RA₂₀₀₀

03:24:19.0

Dec₂₀₀₀

+49:51:40.0

Alternate Names

—

No remarks

No link

Simbad
Most recent references (ADS)

Planet alf Per b

Planet

Basic informations 20 parameters

Atmospheric parameters : Temperatures 0 temperatures

Atmospheric parameters : Molecules 0 molecules

Remarks Some remarks

Other web pages No page

Star

Basic informations 17 parameters

Planetary system 0 planets

Remarks No remark

Other web pages No page

More data 2 references

Planet alf Per b

Planet

Basic informations 20 parameters

Atmospheric parameters : Temperatures 0 temperatures

Atmospheric parameters : Molecules 0 molecules

Remarks Some remarks

Other web pages No page

Star

Basic informations 17 parameters

Planetary system 0 planets

Remarks No remark

Other web pages No page

More data 2 references

Related publications

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Detection of the 128 day radial velocity variations in the supergiant α Persei. Rotational modulations, pulsations, or a planet?

The Exoplanet Handbook