This page summarises the information held within TEPCat for the transiting planetary system HD 21520. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2024MNRAS.534.3744N | |
| Date of discovery paper | 2024 / 6 / 17 | y / m / d |
| Data/telescope used for discovery | TESS | |
| Right ascension | 03 25 33.68 | h m s |
| Declination | −43 36 49.2 | d m s |
| Right ascension (decimal) | 51.39033 | degrees |
| Declination (decimal) | -43.61367 | degrees |
| V-band apparent magnitude | 9.22 | mag |
| K-band apparent magnitude | 7.71 | mag |
| Transit duration | 0.1913 ( 4.591 ) | day hour |
| Transit depth | 0.05 | % |
| Time of mid-transit | 2459160.0157 ± 0.0015 | HJD or BJD |
| Orbital period | 25.1292 ± 0.0008 | days |
| Reference for orbital ephemeris | 2024MNRAS.534.3744N |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5871 ± 62 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.049 ± 0.042 | dex |
| Stellar mass | 1.09 ± 0.07 | Msun |
| Stellar radius | 1.044 ± 0.024 | Rsun |
| Stellar logarithmic surface gravity | 4.42 ± 0.03 | c.g.s. |
| Stellar mean density | 0.96 ± 0.09 ( 1.35 ± 0.13 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0 | |
| Orbital semimajor axis | 0.1726 ± 0.0071 | AU |
| Planetary mass | 0.0 +0.056 −0.0 ( 0 +17 −0 ) | Mjup Mearth |
| Planetary radius | 0.2406 ± 0.0080 ( 2.697 ± 0.090 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | ρjup g cm-3 | |
| Planetary equilibrium temperature | 637 +13 −12 | K |
| Reference of detailed study | 2024MNRAS.534.3744N |
HD 21520 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2024/11/22 John Southworth (Keele University, UK)