This page summarises the information held within TEPCat for the transiting planetary system Kepler-40. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2011A+A...528A..63S | |
| Date of discovery paper | 2011 / 1 / 1 | y / m / d |
| Data/telescope used for discovery | Kepler | |
| Right ascension | 19 47 15.28 | h m s |
| Declination | +47 31 35.7 | d m s |
| Right ascension (decimal) | 296.81367 | degrees |
| Declination (decimal) | 47.52658 | degrees |
| V-band apparent magnitude | 14.59 | mag |
| K-band apparent magnitude | 13.27 | mag |
| Transit duration | 0.286 ( 6.86 ) | day hour |
| Transit depth | 0.39 | % |
| Time of mid-transit | 2455204.83996 ± 0.00020 | HJD or BJD |
| Orbital period | 6.8731697 ± 0.0000096 | days |
| Reference for orbital ephemeris | 2012MNRAS.426.1291S |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 6510 ± 100 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.10 ± 0.10 | dex |
| Stellar mass | 1.46 ± 0.25 | Msun |
| Stellar radius | 2.48 ± 0.19 | Rsun |
| Stellar logarithmic surface gravity | 3.812 ± 0.050 | c.g.s. |
| Stellar mean density | 0.096 ± 0.014 ( 0.135 ± 0.020 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0 | |
| Orbital semimajor axis | 0.0802 ± 0.0045 | AU |
| Planetary mass | 2.16 ± 0.43 ( 686 ± 136 ) | Mjup Mearth |
| Planetary radius | 1.44 ± 0.12 ( 16.1 ± 1.3 ) | Rjup Rearth |
| Planetary surface gravity | 25.7 ± 5.0 3.41 ± 0.08 | m/s2 log(cgs) |
| Planetary mean density | 0.67 ± 0.17 ( 0.89 ± 0.23 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 1744 ± 51 | K |
| Reference of detailed study | 2012MNRAS.426.1291S |
Kepler-40 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/03/17 John Southworth (Keele University, UK)