This page summarises the information held within TEPCat for the transiting planetary system HD 221416. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2019AJ....157..245H | |
| Date of discovery paper | 2019 / 1 / 8 | y / m / d |
| Data/telescope used for discovery | TESS | |
| Right ascension | 23 32 08.07 | h m s |
| Declination | −21 48 05.1 | d m s |
| Right ascension (decimal) | 353.03363 | degrees |
| Declination (decimal) | -21.80142 | degrees |
| V-band apparent magnitude | 8.15 | mag |
| K-band apparent magnitude | 6.04 | mag |
| Transit duration | 0.36 ( 8.6 ) | day hour |
| Transit depth | 0.09 | % |
| Time of mid-transit | 2458357.0135 ± 0.0026 | HJD or BJD |
| Orbital period | 14.2762 ± 0.0037 | days |
| Reference for orbital ephemeris | 2019AJ....157..245H |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5080 ± 90 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.08 ± 0.08 | dex |
| Stellar mass | 1.212 ± 0.074 | Msun |
| Stellar radius | 2.943 ± 0.064 | Rsun |
| Stellar logarithmic surface gravity | 3.584 ± 0.010 | c.g.s. |
| Stellar mean density | 0.0475 ± 0.0005 ( 0.06702 ± 0.00071 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.113 +0.034 −0.030 | |
| Orbital semimajor axis | 0.1223 +0.0025 −0.0026 | AU |
| Planetary mass | 0.200 ± 0.018 ( 63.6 ± 5.7 ) | Mjup Mearth |
| Planetary radius | 0.835 +0.031 −0.028 ( 9.36 +0.35 −0.31 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | 0.343 +0.048 −0.045 ( 0.455 +0.064 −0.060 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | K | |
| Reference of detailed study | 2019AJ....157..245H |
HD 221416 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/03/24 John Southworth (Keele University, UK)