Planet 2M 1938+46 b

Name 2M 1938+46 b
Planet Status Confirmed
Discovered in 2015
Mass 1.9 ( -0.1 +0.1 ) MJ
Mass*sin(i)
Semi-Major Axis 0.92 (± 0.02) AU
Orbital Period 416.0 (± 2.0) day
Eccentricity
ω
Tperi
Radius
Inclination
Update 2016-05-06
Detection Method Pulsar
Mass Detection Method TTV
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 Kepler-451 b

Star

2M 1938+46
Name 2M 1938+46
Distance
Spectral type sdB+M
Apparent magnitude V
Mass 0.6 (± 0.03) MSun
Age
Effective temperature
Radius
Metallicity [Fe/H]
Detected Disc
Magnetic Field
RA2000 19:38:33.0
Dec2000 +46:03:59
Alternate Names Kepler-451
Planetary system 1 planet

Remarks

The star is a sdB+M eclipsing binary with individual component masses 0.48 and 0. 12 solar mass. The binary period is 0.125765282 &"177; 0.0000000005 d.

More data

Observability Predictor

Remarks

The planet detection and mass determination come from the timing of the binary parent star eclipses (Baran et al. 2015)

Related publications

Detection of a planet in the sdB + M dwarf binary system 2M1938+4603
2015 BARAN A., ZOLA S., BLOKESZ A., OSTENSEN R. & SILVOTTI R.
Astron. & Astrophys., 577, A146
paper