This page summarises the information held within TEPCat for the transiting planetary system LTT 3780c. 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 | 0.0746 ( 1.790 ) | day hour |
| Transit depth | 0.32 | % |
| Time of mid-transit | 2459600.54227 ± 0.00066 | HJD or BJD |
| Orbital period | 12.252284 ± 0.000013 | days |
| Reference for orbital ephemeris | 2024A+A...682A..66B |
| 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 | 0.024 +0.032 −0.017 | |
| Orbital semimajor axis | 0.0757 ± 0.0018 | AU |
| Planetary mass | 0.0252 +0.0016 −0.0015 ( 8.01 +0.51 −0.48 ) | Mjup Mearth |
| Planetary radius | 0.213 +0.009 −0.010 ( 2.39 +0.10 −0.11 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | 2.44 +0.41 −0.32 ( 3.24 +0.54 −0.42 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 359 ± 10 | K |
| Reference of detailed study | 2024A+A...682A..66B |
LTT 3780c does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/03/17 John Southworth (Keele University, UK)