This page summarises the information held within TEPCat for the transiting planetary system HD 148797b. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | arXiv:2607.09656 | |
| Date of discovery paper | 2026 / 7 / 13 | y / m / d |
| Data/telescope used for discovery | TESS | |
| Right ascension | 16 33 39.06 | h m s |
| Declination | −56 41 57.4 | d m s |
| Right ascension (decimal) | 248.41275 | degrees |
| Declination (decimal) | -56.69928 | degrees |
| V-band apparent magnitude | 9.57 | mag |
| K-band apparent magnitude | 8.36 | mag |
| Transit duration | 0.24 ( 5.8 ) | day hour |
| Transit depth | 0.2 | % |
| Time of mid-transit | 2460122.1984 ± 0.0019 | HJD or BJD |
| Orbital period | 42.146 ± 0.015 | days |
| Reference for orbital ephemeris | arXiv:2607.09656 |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 6441 ± 51 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.071 ± 0.079 | dex |
| Stellar mass | 1.268 ± 0.080 | Msun |
| Stellar radius | 1.569 ± 0.069 | Rsun |
| Stellar logarithmic surface gravity | 4.050 ± 0.077 | c.g.s. |
| Stellar mean density | 0.327 ± 0.021 ( 0.461 ± 0.030 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.153 ± 0.093 | |
| Orbital semimajor axis | 0.2568 ± 0.0052 | AU |
| Planetary mass | 0.124 +0.041 −0.027 ( 39.4 +13.0 −8.6 ) | Mjup Mearth |
| Planetary radius | 0.736 ± 0.033 ( 8.25 ± 0.37 ) | Rjup Rearth |
| Planetary surface gravity | 5.8 +1.8 −1.4 2.8 +0.1 −0.1 | m/s2 log(cgs) |
| Planetary mean density | 0.294 ± 0.090 ( 0.39 ± 0.12 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 762 ± 17 | K |
| Reference of detailed study | arXiv:2607.09656 |
HD 148797b does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2026/07/16 John Southworth (Keele University, UK)