Planet HD 1397 b

Name HD 1397 b
Planet Status Confirmed
Discovered in 2018
Mass 0.415 (± 0.02) MJ
Mass*sin(i)
Semi-Major Axis 0.1097 ( -0.0013 +0.0011 ) AU
Orbital Period 11.53533 (± 0.0008) day
Eccentricity 0.251 ( -0.019 +0.02 )
ω 2.1 ( -7.0 +6.1 ) deg
Tperi
Radius 1.026 ( -0.027 +0.025 ) RJ
Inclination 88.99 ( -0.73 +0.67 ) deg
Update 2021-03-26
Detection Method Primary Transit
Mass Detection Method Radial Velocity
Radius Detection Method Primary Transit
Primary transit 2458332.08261 (± 0.0006) JD
Secondary transit
λ
Impact Parameter b 0.17 ( -0.11 +0.12 )
Time Vr=0
Velocity Semiamplitude K 32.0 (± 1.4) m/s
Calculated temperature 1228.3 (± 10.0) K
Measured temperature
Hottest point longitude
Geometric albedo
Surface gravity log(g/gH)
Alternate Names

Star

HD 1397
Name HD 1397
Distance 79.31 (± 0.17) pc
Spectral type G5III
Apparent magnitude V 7.9
Mass 1.322 ( -0.042 +0.049 ) MSun
Age 4.52 (± 0.5) Gyr
Effective temperature 5528.0 (± 50.0) K
Radius 2.328 ( -0.056 +0.05 ) RSun
Metallicity [Fe/H] 0.27 (± 0.05)
Detected Disc
Magnetic Field
RA2000 00:17:47.0
Dec2000 -66:21:32
Alternate Names
Planetary system 1 planet

More data


Related publications

A Jovian planet in an eccentric 11.5 day orbit around HD1397 discovered by TESS
2019 NIELSEN L., BOUCHY F., TURNER O., GILES H., SUAREZ MASCARENO A., LOVIS Ch. et al.
Astron. & Astrophys., 623, 100
paper  arxiv  

HD 1397b: a transiting warm giant planet orbiting a V = 7.8 mag sub-giant star discovered by TESS
2019 BRAHM R., ESPINOZA N., JORDAN A., HENNING Th., SARKIS P. et al.
Astron. J., 158, 45
paper  arxiv