Planet TOI-270 b
| Name | TOI-270 b | ||
| Planet Status | Confirmed | ||
| Discovered in | 2019 | ||
| Mass | 0.006 ( -0.0022 +0.0047 ) MJ |  |
|
| Mass*sin(i) | — | ||
| Semi-Major Axis | 0.0306 ( -0.0057 +0.0033 ) AU | |
|
| Orbital Period | 3.36008 ( -7e-05 +6.5e-05 ) day | |
|
| Eccentricity | 0.0 | |
|
| ω | — | ||
| Tperi | — | ||
| Radius | 0.11125 (± 0.0074) RJ | |
|
| Inclination | 88.65 ( -1.4 +0.85 ) deg | |
|
| Update | 2019-03-15 | ||
| Detection Method | Primary Transit | ||
| Mass Detection Method | — | ||
| Radius Detection Method | Primary Transit | ||
| Primary transit | 2458461.01464 ( -0.00093 +0.00084 ) JD | |
|
| Secondary transit | — | ||
| λ | — | ||
| Impact Parameter b | — | ||
| Time Vr=0 | — | ||
| Velocity Semiamplitude K | — | ||
| Calculated temperature | 528.0 ( -32.0 +56.0 ) K | |
|
| Measured temperature | — | ||
| Hottest point longitude | — | ||
| Geometric albedo | — | ||
| Surface gravity log(g/gH) | — | ||
| Alternate Names | — |
Star
TOI-270| Name | TOI-270 | ||
| Distance | 22.453 (± 0.021) pc | |
|
| Spectral type | M3.0V | ||
| Apparent magnitude V | 12.6 | ||
| Mass | 0.4 (± 0.02) MSun | |
|
| Age | — | ||
| Effective temperature | 3386.0 ( -131.0 +137.0 ) K | |
|
| Radius | 0.38 (± 0.02) RSun | |
|
| Metallicity [Fe/H] | -0.17 (± 0.1) | |
|
| Detected Disc | — | ||
| Magnetic Field | — | ||
| RA2000 | 04:33:40.0 | ||
| Dec2000 | -51:57:22 | ||
| Alternate Names | |||
| Planetary system | 3 planets |
Related publications
Hubble Space Telescope transmission spectroscopy for the temperate sub-Neptune TOI-270d: a possible hydrogen-rich atmosphere containing water vapour
2023
MIKAL-EVANS Th., MADHUSUDHAN N., DITTMANN J., GUENTHER M., WELBANKS L. et al.
Astron. J., 165, 84
paper arxiv
Transit Timings Variations in the three-planet system: TOI-270
2022
KAYE L., VISSAPRAGADA Sh., GÜNTHER M., AIGRAIN S., MIKAL-EVANS Th. et al.
MNRAS, 510, 5464
paper arxiv
Masses and compositions of three small planets orbiting the nearby M dwarf L231-32 (TOI-270) and the M dwarf radius valley
2021
VAN EYLEN V., ASTUDILLO-DEFRU N., BONFILS X., LIVINGSTON J. et al.
MNRAS, 507, 2154
paper arxiv
Properties of Sub-Neptune Atmospheres: TOI-270 System
2020
CHOUQAR J., BENKHALDOUN Z., JABIRI A., LUSTIG-YAEGER J., SOUBKIOU A. & SZENTGYORGYI A.
MNRAS, 495, 962
paper arxiv
A Super-Earth and two sub-Neptunes transiting the bright, nearby, and quiet M-dwarf TOI-270
2019
GÜTHER M., POZUELOS F., DITTMANN J., DRAGOMIR D., KANE S. et al.
Nature Astronomy, in press
paper arxiv
