This page summarises the information held within TEPCat for the transiting brown dwarf system Kepler-492. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2013A+A...551L...9D | |
| Date of discovery paper | 2013 / 2 / 13 | y / m / d |
| Data/telescope used for discovery | Kepler | |
| Right ascension | 19 41 59.20 | h m s |
| Declination | +42 32 16.4 | d m s |
| Right ascension (decimal) | 295.49667 | degrees |
| Declination (decimal) | 42.53789 | degrees |
| V-band apparent magnitude | 14.76 | mag |
| K-band apparent magnitude | 12.66 | mag |
| Transit duration | 0.1279 ( 3.070 ) | day hour |
| Transit depth | 1.0 | % |
| Time of mid-transit | 2455186.13609 ± 0.00016 | HJD or BJD |
| Orbital period | 11.720126 ± 0.000011 | days |
| Reference for orbital ephemeris | 2015A+A...575A..85B |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5400 ± 75 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.18 ± 0.12 | dex |
| Stellar mass | 0.95 +0.03 −0.04 | Msun |
| Stellar radius | 0.87 ± 0.02 | Rsun |
| Stellar logarithmic surface gravity | 4.558 ± 0.014 | c.g.s. |
| Stellar mean density | 1.53 ± 0.08 ( 2.16 ± 0.11 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0 +0.031 −0.0 | |
| Orbital semimajor axis | 0.1010 ± 0.0010 | AU |
| Planetary mass | 40.8 +1.1 −1.5 ( 129699 +3497 −4768 ) | Mjup Mearth |
| Planetary radius | 0.82 ± 0.02 ( 9.19 ± 0.22 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | 68.5 +5.4 −5.1 ( 90.9 + 7.2 − 6.8 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 737 ± 31 | K |
| Reference of detailed study | 2015A+A...575A..85B |
Kepler-492 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2023/11/23 John Southworth (Keele University, UK)