This page summarises the information held within TEPCat for the transiting planetary system Kepler-278b. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2014ApJ...784...45R | |
| Date of discovery paper | 2014 / 3 / 20 | y / m / d |
| Data/telescope used for discovery | Kepler | |
| Right ascension | 19 20 25.72 | h m s |
| Declination | +38 42 08.0 | d m s |
| Right ascension (decimal) | 290.10717 | degrees |
| Declination (decimal) | 38.70222 | degrees |
| V-band apparent magnitude | 11.83 | mag |
| K-band apparent magnitude | 9.46 | mag |
| Transit duration | 0.3128 ( 7.507 ) | day hour |
| Transit depth | 0.02 | % |
| Time of mid-transit | 2454971.51248 ± 0.00644 | HJD or BJD |
| Orbital period | 30.160546 ± 0.000311 | days |
| Reference for orbital ephemeris | 2020A+A...634A..29J |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 4965 ± 54 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.22 ± 0.04 | dex |
| Stellar mass | 1.227 ± 0.061 | Msun |
| Stellar radius | 2.861 +0.060 −0.066 | Rsun |
| Stellar logarithmic surface gravity | 3.58 ± 0.10 | c.g.s. |
| Stellar mean density | 0.052 ± 0.004 ( 0.0734 ± 0.0056 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.696 +0.017 −0.026 | |
| Orbital semimajor axis | 0.202 ± 0.005 | AU |
| Planetary mass | 0.18 +0.12 −0.04 ( 57 +38 −12 ) | Mjup Mearth |
| Planetary radius | 0.353 ± 0.007 ( 3.957 ± 0.078 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | 3.8 +2.4 −0.88 ( 5.0 +3.2 −1.2 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 586 ± 19 | K |
| Reference of detailed study | 2020A+A...634A..29J |
Kepler-278b does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2024/09/04 John Southworth (Keele University, UK)