Name | GJ 273 b | ||
Planet Status | Confirmed | ||
Discovered in | 2017 | ||
Mass | 0.00922 MJ | ![]() |
|
Mass*sin(i) | 0.0069 (± 0.003) MJ | ![]() |
+ |
Semi-Major Axis | 0.091 (± 0.01) AU | ![]() |
+ |
Orbital Period | 18.64 (± 0.015) day | ![]() |
+ |
Eccentricity | 0.1 ( -0.03 +0.25 ) | ![]() |
+ |
ω | — | ||
Tperi | — | ||
Radius | — | ||
Inclination | 80.0 deg | ![]() |
|
Update | 2020-06-19 | ||
Detection Method | Radial Velocity | ||
Mass Detection Method | Radial Velocity | ||
Radius Detection Method | — | ||
Primary transit | — | ||
Secondary transit | — | ||
λ | — | ||
Impact Parameter b | — | ||
Time Vr=0 | — | ||
Velocity Semiamplitude K | 1.28 ( -0.5 +0.45 ) m/s | ![]() |
+ |
Calculated temperature | — | ||
Measured temperature | — | ||
Hottest point longitude | — | ||
Geometric albedo | — | ||
Surface gravity log(g/gH) | — | ||
Alternate Names | Luyten b |
Name | GJ 273 | ||
Distance | 3.8 pc | ||
Spectral type | M3.5 | ||
Apparent magnitude V | 9.87 | ||
Mass | 0.29 MSun | ![]() |
|
Age | — | ![]() |
|
Effective temperature | 3382.0 (± 49.0) K | ||
Radius | 0.293 (± 0.0027) RSun | ![]() |
|
Metallicity [Fe/H] | 0.09 (± 0.17) | ![]() |
|
Detected Disc | — | ||
Magnetic Field | — | ||
RA2000 | 07:27:24.5 | ||
Dec2000 | +05:13:33 | ||
Alternate Names | |||
Planetary system | 4 planets |
GJ 273: On the formation, dynamical evolution and habitability of a planetary system hosted by an M dwarf at 3.75 parsec
2020
POZUELOS F., SUAREZ J., de ELIA G., BERDINAS Z., BONFANTI A. et al.
Astron. & Astrophys., 641, A23
paper arxiv
Frequency of planets orbiting M dwarfs in the Solar neighbourhood
2019
TUOMI M., JONES H., ANGLADA-ESCUDE G., BUTLER P., ARRIAGADA P. et al.
ApJ. Suppl., submitted
arxiv
The HARPS search for southern extra-solar planets XLI. A dozen planets around the M dwarfs GJ 3138, GJ 3323, GJ 273, GJ 628, and GJ 3293
2017
ASTUDILLO-DEFRU N., FORVEILLE Th., BONFILS X., SEGRANSAN D., BOUCHY F. et al.
Astron. & Astrophys., 602, A88
paper arxiv