This page summarises the information held within TEPCat for the transiting planetary system TOI-178d. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2021A+A...649A..26L | |
| Date of discovery paper | 2021 / 1 / 25 | y / m / d |
| Data/telescope used for discovery | TESS | |
| Right ascension | 00 29 12.30 | h m s |
| Declination | −30 27 13.5 | d m s |
| Right ascension (decimal) | 7.30125 | degrees |
| Declination (decimal) | -30.45375 | degrees |
| V-band apparent magnitude | 11.95 | mag |
| K-band apparent magnitude | 8.76 | mag |
| Transit duration | 0.0968 ( 2.323 ) | day hour |
| Transit depth | 0.14 | % |
| Time of mid-transit | 2458747.14623 ± 0.00091 | HJD or BJD |
| Orbital period | 6.557569 ± 0.000013 | days |
| Reference for orbital ephemeris | 2024A+A...688A.211L |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 4316 ± 70 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.23 ± 0.05 | dex |
| Stellar mass | 0.647 +0.030 −0.029 | Msun |
| Stellar radius | 0.662 ± 0.010 | Rsun |
| Stellar logarithmic surface gravity | 4.45 ± 0.15 | c.g.s. |
| Stellar mean density | 2.23 ± 0.14 ( 3.15 ± 0.20 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.010 +0.011 −0.007 | |
| Orbital semimajor axis | 0.05927 +0.00070 −0.00077 | AU |
| Planetary mass | 0.0164 +0.0012 −0.0014 ( 5.21 +0.38 −0.45 ) | Mjup Mearth |
| Planetary radius | 0.2404 +0.0037 −0.0041 ( 2.695 +0.041 −0.046 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | 0.73 +0.23 −0.26 ( 0.97 +0.31 −0.34 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 690 ± 14 | K |
| Reference of detailed study | 2024A+A...688A.211L |
TOI-178d does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/01/01 John Southworth (Keele University, UK)