This page summarises the information held within TEPCat for the transiting planetary system HD 28109c. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2022MNRAS.515.1328D | |
| Date of discovery paper | 2022 / 5 / 19 | y / m / d |
| Data/telescope used for discovery | TESS | |
| Right ascension | 04 20 57.13 | h m s |
| Declination | −68 06 09.5 | d m s |
| Right ascension (decimal) | 65.23804 | degrees |
| Declination (decimal) | -68.10264 | degrees |
| V-band apparent magnitude | 9.38 | mag |
| K-band apparent magnitude | 8.81 | mag |
| Transit duration | 0.3510 ( 8.424 ) | day hour |
| Transit depth | 0.08 | % |
| Time of mid-transit | 2458377.8011 ± 0.0073 | HJD or BJD |
| Orbital period | 56.0082 ± 0.0020 | days |
| Reference for orbital ephemeris | 2022MNRAS.515.1328D |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 6120 ± 50 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.0 ± 0.1 | dex |
| Stellar mass | 1.446 ± 0.035 | Msun |
| Stellar radius | 1.26 ± 0.08 | Rsun |
| Stellar logarithmic surface gravity | 4.13 ± 0.10 | c.g.s. |
| Stellar mean density | ρsun g cm-3 | |
| Orbital eccentricity | 0.0 +0.12 −0.0 | |
| Orbital semimajor axis | 0.308 ± 0.011 | AU |
| Planetary mass | 0.025 +0.013 −0.010 ( 7.9 +4.1 −3.2 ) | Mjup Mearth |
| Planetary radius | 0.377 ± 0.010 ( 4.23 ± 0.11 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | ρjup g cm-3 | |
| Planetary equilibrium temperature | 582 ± 9 | K |
| Reference of detailed study | 2022MNRAS.515.1328D |
HD 28109c does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/01/01 John Southworth (Keele University, UK)