This page summarises the information held within TEPCat for the transiting planetary system KELT-17. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2016AJ....152..136Z | |
| Date of discovery paper | 2016 / 7 / 14 | y / m / d |
| Data/telescope used for discovery | KELT | |
| Right ascension | 08 22 28.21 | h m s |
| Declination | +13 44 07.2 | d m s |
| Right ascension (decimal) | 125.61754 | degrees |
| Declination (decimal) | 13.73533 | degrees |
| V-band apparent magnitude | 9.29 | mag |
| K-band apparent magnitude | 8.65 | mag |
| Transit duration | 0.1448 ( 3.475 ) | day hour |
| Transit depth | 1.0 | % |
| Time of mid-transit | 2457287.74511 ± 0.00056 | HJD or BJD |
| Orbital period | 3.08018052 ± 0.00000076 | days |
| Reference for orbital ephemeris | arXiv:2312.03319 |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 7454 ± 49 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.018 +0.074 −0.072 | dex |
| Stellar mass | 1.635 +0.066 −0.061 | Msun |
| Stellar radius | 1.645 +0.060 −0.055 | Rsun |
| Stellar logarithmic surface gravity | 4.220 +0.022 −0.024 | c.g.s. |
| Stellar mean density | 0.367 +0.032 −0.030 ( 0.518 +0.045 −0.042 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0 +0.39 −0.0 | |
| Orbital semimajor axis | 0.04881 +0.00065 −0.00061 | AU |
| Planetary mass | 1.31 +0.28 −0.29 ( 416 +89 −92 ) | Mjup Mearth |
| Planetary radius | 1.507 ± 0.055 ( 16.89 ± 0.62 ) | Rjup Rearth |
| Planetary surface gravity | 13.9 +3.2 −3.1 3.14 +0.09 −0.11 | m/s2 log(cgs) |
| Planetary mean density | 0.35 +0.09 −0.08 ( 0.46 +0.12 −0.11 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 2087 +32 −33 | K |
| Reference of detailed study | 2022MNRAS.513.2822G |
| Reference | λ (degrees) |
|---|---|
| Zhou et al. (2016) | −115.9 ± 4.1 |
Page generated on 2024/09/04 John Southworth (Keele University, UK)