Planet alf Per b

Name alf Per b
Planet Status Unconfirmed
Discovered in 2012
Mass 6.6 ( -0.2 +0.2 ) MJ
Mass*sin(i)
Semi-Major Axis 0.97 AU
Orbital Period 128.2 (± 0.1) day
Eccentricity 0.1 (± 0.04)
ω 208.37 (± 12.36) deg
Tperi 2451513.0 (± 4.91) JD
Radius
Inclination
Update 2012-05-22
Detection Method Other
Mass Detection Method
Radius Detection Method
Primary transit
Secondary transit
λ
Impact Parameter b
Time Vr=0
Velocity Semiamplitude K
Calculated temperature
Measured temperature
Hottest point longitude
Geometric albedo
Surface gravity log(g/gH)
Alternate Names

Star

alf Per
Name alf Per
Distance 156.0 (± 4.0) pc
Spectral type F5Ib
Apparent magnitude V 1.82
Mass 7.3 (± 0.3) MSun
Age 0.041 Gyr
Effective temperature 6350.0 (± 100.0) K
Radius 55.0 RSun
Metallicity [Fe/H] -0.07 (± 0.09)
Detected Disc
Magnetic Field
RA2000 03:24:19.0
Dec2000 +49:51:40
Alternate Names
Planetary system 1 planet

More data

Observability Predictor

Remarks

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

Related publications

Detection of the 128 day radial velocity variations in the supergiant α Persei. Rotational modulations, pulsations, or a planet?
2012 LEE B.-Ch., HAN I., PARK M.-G., KIM K.-M. & MKRTICHIAN D.
Astron. & Astrophys.
arxiv

The Exoplanet Handbook
2011 Michael Perryman
Content
Content and Chapter 5