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 | 2458543.91281 ± 0.00050 | HJD or BJD |
| Orbital period | 0.768377 ± 0.0000014 | days |
| Reference for orbital ephemeris | 2020A+A...642A.173N |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 3360 ± 51 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.19 ± 0.16 | dex |
| Stellar mass | 0.379 ± 0.016 | Msun |
| Stellar radius | 0.382 ± 0.012 | Rsun |
| Stellar logarithmic surface gravity | 4.81 ± 0.04 | c.g.s. |
| Stellar mean density | 6.8 ± 0.7 ( 9.59 ± 0.99 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.064 +0.075 −0.046 | |
| Orbital semimajor axis | 0.01203 +0.00054 −0.00053 | AU |
| Planetary mass | 0.0074 ± 0.0008 ( 2.35 ± 0.25 ) | Mjup Mearth |
| Planetary radius | 0.120 ± 0.005 ( 1.345 ± 0.056 ) | Rjup Rearth |
| Planetary surface gravity | 12.6 +1.8 −1.6 3.10 +0.06 −0.06 | m/s2 log(cgs) |
| Planetary mean density | 3.95 +0.71 −0.61 ( 5.24 +0.94 −0.81 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 1000 +98 −100 | K |
| Reference of detailed study | 2020A+A...642A.173N |
LTT 3780b does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2023/09/01 John Southworth (Keele University, UK)