This page summarises the information held within TEPCat for the transiting planetary system Kepler-89b. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2013ApJ...768...14W | |
| Date of discovery paper | 2013 / 3 / 10 | y / m / d |
| Data/telescope used for discovery | Kepler | |
| Right ascension | 19 49 19.93 | h m s |
| Declination | +41 53 28.0 | d m s |
| Right ascension (decimal) | 297.33304 | degrees |
| Declination (decimal) | 41.89111 | degrees |
| V-band apparent magnitude | 12.33 | mag |
| K-band apparent magnitude | 10.93 | mag |
| Transit duration | 0.17 ( 4.1 ) | day hour |
| Transit depth | 0.02 | % |
| Time of mid-transit | 2454964.6175 ± 0.0021 | HJD or BJD |
| Orbital period | 3.743208 ± 0.000015 | days |
| Reference for orbital ephemeris | 2013ApJ...768...14W |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 6182 ± 82 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.02 ± 0.02 | dex |
| Stellar mass | 1.277 ± 0.050 | Msun |
| Stellar radius | 1.52 ± 0.14 | Rsun |
| Stellar logarithmic surface gravity | 4.181 ± 0.066 | c.g.s. |
| Stellar mean density | ρsun g cm-3 | |
| Orbital eccentricity | 0.25 ± 0.17 | |
| Orbital semimajor axis | 0.05119 ± 0.00067 | AU |
| Planetary mass | 0.033 ± 0.014 ( 10.5 ± 4.5 ) | Mjup Mearth |
| Planetary radius | 0.153 ± 0.014 ( 1.71 ± 0.16 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | 7.6 +4.1 −4.2 ( 10.1 + 5.4 − 5.6 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 1486 | K |
| Reference of detailed study | 2013ApJ...768...14W |
Kepler-89b does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/03/24 John Southworth (Keele University, UK)