This page summarises the information held within TEPCat for the transiting planetary system HD 22946c. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2022A+A...668A..85C | |
| Date of discovery paper | 2022 / 9 / 21 | y / m / d |
| Data/telescope used for discovery | TESS | |
| Right ascension | 03 39 16.76 | h m s |
| Declination | −42 45 45.2 | d m s |
| Right ascension (decimal) | 54.81983 | degrees |
| Declination (decimal) | -42.76256 | degrees |
| V-band apparent magnitude | 8.27 | mag |
| K-band apparent magnitude | 6.98 | mag |
| Transit duration | 0.1535 ( 3.684 ) | day hour |
| Transit depth | 0.04 | % |
| Time of mid-transit | 2459161.60861 ± 0.00071 | HJD or BJD |
| Orbital period | 9.573083 ± 0.000014 | days |
| Reference for orbital ephemeris | 2023A+A...674A..44G |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 6169 ± 64 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.08 ± 0.04 | dex |
| Stellar mass | 1.098 +0.040 −0.039 | Msun |
| Stellar radius | 1.117 ± 0.009 | Rsun |
| Stellar logarithmic surface gravity | 4.47 ± 0.11 | c.g.s. |
| Stellar mean density | ρsun g cm-3 | |
| Orbital eccentricity | 0.0 | |
| Orbital semimajor axis | 0.1017 +0.0015 −0.0014 | AU |
| Planetary mass | 0.0 +0.031 −0.0 ( 0.0 +9.9 −0.0 ) | Mjup Mearth |
| Planetary radius | 0.244 ± 0.012 ( 2.73 ± 0.13 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | ρjup g cm-3 | |
| Planetary equilibrium temperature | 931 ± 11 | K |
| Reference of detailed study | 2023A+A...674A..44G |
HD 22946c does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/03/17 John Southworth (Keele University, UK)