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)