This page summarises the information held within TEPCat for the transiting planetary system HD 28109b. 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 | 0.2082 ( 4.997 ) | day hour |
| Transit depth | 0.02 | % |
| Time of mid-transit | 2458344.8177 ± 0.0076 | HJD or BJD |
| Orbital period | 22.8910 ± 0.0036 | 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 +0.33 −0.0 | |
| Orbital semimajor axis | 0.1357 ± 0.0034 | AU |
| Planetary mass | 0.058 +0.029 −0.024 ( 18.4 +9.2 −7.6 ) | Mjup Mearth |
| Planetary radius | 0.196 ± 0.009 ( 2.20 ± 0.10 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | ρjup g cm-3 | |
| Planetary equilibrium temperature | 881 ± 8 | K |
| Reference of detailed study | 2022MNRAS.515.1328D |
HD 28109b does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/03/24 John Southworth (Keele University, UK)