This page summarises the information held within TEPCat for the transiting planetary system LTT 3780b. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2020AJ....160....3C | |
| Date of discovery paper | 2020 / 3 / 3 | y / m / d |
| Data/telescope used for discovery | TESS | |
| Right ascension | 10 18 34.78 | h m s |
| Declination | −11 43 04.1 | d m s |
| Right ascension (decimal) | 154.64492 | degrees |
| Declination (decimal) | -11.71781 | degrees |
| V-band apparent magnitude | 13.07 | mag |
| K-band apparent magnitude | 8.20 | mag |
| Transit duration | 0.0341 ( 0.818 ) | day hour |
| Transit depth | 0.11 | % |
| Time of mid-transit | 2459606.58098 ± 0.00036 | HJD or BJD |
| Orbital period | 0.76837931 ± 0.00000041 | days |
| Reference for orbital ephemeris | arXiv:2311.12577 |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 3358 ± 92 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.06 ± 0.11 | dex |
| Stellar mass | 0.381 +0.024 −0.034 | Msun |
| Stellar radius | 0.380 ± 0.012 | Rsun |
| Stellar logarithmic surface gravity | 4.85 ± 0.11 | c.g.s. |
| Stellar mean density | 6.94 ± 0.84 ( 9.8 ± 1.2 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0 | |
| Orbital semimajor axis | 0.01195 +0.00028 −0.00029 | AU |
| Planetary mass | 0.0077 ± 0.0006 ( 2.45 ± 0.19 ) | Mjup Mearth |
| Planetary radius | 0.1182 ± 0.0051 ( 1.325 ± 0.057 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | 4.4 +0.8 −0.6 ( 5.84 +1.06 −0.80 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 903 ± 26 | K |
| Reference of detailed study | arXiv:2311.12577 |
LTT 3780b does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2023/11/23 John Southworth (Keele University, UK)