Planet LTT 1445A b
| Name | LTT 1445A b | ||
| Planet Status | Confirmed | ||
| Discovered in | 2019 | ||
| Mass | 0.00903 (± 0.00082) MJ |  |
|
| Mass*sin(i) | — | ||
| Semi-Major Axis | 0.03813 (± 0.0007) AU | |
|
| Orbital Period | 5.3587657 (± 4.3e-06) day | |
|
| Eccentricity | 0.11 ( -0.11 +0.0 ) | |
|
| ω | 222.0 ( -61.0 +120.0 ) deg | |
|
| Tperi | — | ||
| Radius | 0.11643 ( -0.00544 +0.00589 ) RJ | |
|
| Inclination | 89.68 ( -0.29 +0.22 ) deg | |
|
| Update | 2023-09-19 | ||
| Detection Method | Primary Transit | ||
| Mass Detection Method | Radial Velocity | ||
| Radius Detection Method | Primary Transit | ||
| Primary transit | 2458412.70851 (± 0.0004) JD | |
|
| Secondary transit | — | ||
| λ | — | ||
| Impact Parameter b | 0.17 ( -0.12 +0.15 ) | |
|
| Time Vr=0 | — | ||
| Velocity Semiamplitude K | 2.6 (± 0.21) m/s | |
|
| Calculated temperature | 424.0 (± 21.0) K | |
|
| Measured temperature | — | ||
| Hottest point longitude | — | ||
| Geometric albedo | — | ||
| Surface gravity log(g/gH) | — | ||
| Alternate Names | TOI-455 b |
Star
LTT 1445A| Name | LTT 1445A | ||
| Distance | 6.9 pc | |
|
| Spectral type | M | ||
| Apparent magnitude V | — | ||
| Mass | 0.256 (± 0.014) MSun | |
|
| Age | — | ||
| Effective temperature | 3340.0 (± 159.0) K | |
|
| Radius | 0.27 (± 0.012) RSun | |
|
| Metallicity [Fe/H] | -0.34 (± 0.09) | |
|
| Detected Disc | — | ||
| Magnetic Field | — | ||
| RA2000 | 03:01:51.0 | ||
| Dec2000 | -16:35:36 | ||
| Alternate Names | |||
| Planetary system | 3 planets |
Remarks
More data
- Simbad
- Most recent references (ADS)
Atmospheric parameters
Temperatures
| Data Source | Type | Result Value | Result Figure | Notes | Reference |
Molecules
| Molecule | Data Source | Type | Result Value | Result Figure | Notes | Reference |
| H2O | Modeling | 2023 - PHILLIPS C. | ||||
| NH3 | Modeling | 2023 - PHILLIPS C. | ||||
Observability Predictor 
Related publications
Ground-based Optical Transmission Spectroscopy of the Nearby Terrestrial Exoplanet LTT 1445Ab
2023
DIAMOND-LOWE H., MENDONCA J., CHARBONNEAU D. & BUCHHAVE L.
Astron. J., 165, 169
paper arxiv
Exploring the Potential of Twinkle to Unveil the Nature of LTT 1445 Ab
2023
PHILLIPS C., WANG J., BILLY E., RODRIGUEZ MARTINEZ R., PAI ASKONAR A. & SCOTT GAUDI B.
MNRAS, in press
paper
Planetary system around LTT 1445A unveiled by ESPRESSO: Multiple planets in a triple M-dwarf system
2023
LAVIE B., BOUCHY F., LOVIS Ch., ZAPATERO OSORIO M., DELINE A. et al.
Astron. & Astrophys., 673, A69
paper arxiv
A Second Planet Transiting LTT~1445A and a Determination of the Masses of Both Worlds
2022
WINTERS J., CLOUTIER R., MEDINA A., IRWIN J., CHARBONNEAU D. et al.
Astron. J., 163, 168
paper arxiv
X-ray Emission from the Exoplanet Hosting LTT 1445 Triple Star System
2022
BROWN A., FRONING C., YOUNGBLOOD A., FRANCE K., WILSON D. et al.
Astron. J., 164, 206
paper arxiv
Is LTT 1445 Ab a Hycean World or a cold Haber World? Exploring the Potential of Twinkle to Unveil Its Nature
2022
PHILLIPS C., WANG J., EDWARDS B., RODRIGUEZ MARTINEZ R., ASNODKAR A. & SCOTT GAUDI B.
MNRAS, submitted
arxiv
A hot terrestrial planet orbiting the bright M dwarf L 168-9 unveiled by TESS
2020
ASTUDILLO-DEFRU N., CLOUTIER R., WANG S., TESKE J., BRAHM R. et al.
Astron. & Astrophys., 636, A58
paper arxiv
Three Red Suns in the Sky: A Transiting, Terrestrial Planet in a Triple M Dwarf System at 6.9 Parsecs
2019
WINTERS J., MEDINA A., IRWIN J., CHARBONNEAU D., ASTUDILLI-DEFRU N. et al.
Astron. J., 158, 152
paper arxiv
