Planet HD 1397 b
Name |
HD 1397 b |
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Planet Status |
Confirmed |
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Discovered in |
2018 |
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Mass |
0.419 (± 0.024) MJ |
 |
|
Mass*sin(i) |
— |
|
|
Semi-Major Axis |
0.1097 (± 0.0012) AU |
 |
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Orbital Period |
11.53604 (± 0.00037) day |
 |
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Eccentricity |
0.265 (± 0.023) |
 |
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ω |
0.1 ( -7.4 +6.2 ) deg |
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Tperi |
— |
|
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Radius |
1.023 ( -0.026 +0.023 ) RJ |
 |
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Inclination |
88.92 (± 0.73) deg |
 |
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Update |
2018-11-06 |
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Detection Method |
Primary Transit |
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Mass Detection Method |
Radial Velocity |
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Radius Detection Method |
Primary Transit |
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Primary transit |
2458332.0823 (± 0.0005) JD |
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Secondary transit |
— |
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λ |
— |
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Impact Parameter b |
0.18 (± 0.13) |
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Time Vr=0 |
— |
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Velocity Semiamplitude K |
32.5 (± 1.8) m/s |
 |
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Calculated temperature |
1228.0 (± 10.0) K |
 |
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Measured temperature |
— |
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Hottest point longitude |
— |
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Geometric albedo |
— |
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Surface gravity log(g/gH) |
— |
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Alternate Names |
— |
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Star
Name |
HD 1397 |
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Distance |
79.31 (± 0.17) pc |
 |
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Spectral type |
G5III |
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Apparent magnitude V |
7.9 |
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Mass |
1.322 ( -0.042 +0.049 ) MSun |
 |
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Age |
4.52 (± 0.5) Gyr |
 |
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Effective temperature |
5528.0 (± 50.0) K |
 |
|
Radius |
2.328 ( -0.056 +0.05 ) RSun |
 |
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Metallicity [Fe/H] |
0.27 (± 0.05) |
 |
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Detected Disc |
— |
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Magnetic Field |
— |
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RA2000 |
00:17:47.0 |
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Dec2000 |
-66:21:32 |
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Alternate Names |
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Planetary system |
1 planet
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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., in press
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