This page summarises the information held within TEPCat for the transiting planetary system Kepler-420. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2014A+A...571A..37S | |
| Date of discovery paper | 2014 / 6 / 25 | y / m / d |
| Data/telescope used for discovery | Kepler | |
| Right ascension | 19 24 54.05 | h m s |
| Declination | +44 55 38.6 | d m s |
| Right ascension (decimal) | 291.22521 | degrees |
| Declination (decimal) | 44.92739 | degrees |
| V-band apparent magnitude | 14.88 | mag |
| K-band apparent magnitude | 12.73 | mag |
| Transit duration | 0.177 ( 4.25 ) | day hour |
| Transit depth | 0.8 | % |
| Time of mid-transit | 2455006.79454 ± 0.00030 | HJD or BJD |
| Orbital period | 86.647661 ± 0.000034 | days |
| Reference for orbital ephemeris | 2014A+A...571A..37S |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5520 ± 80 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.27 ± 0.09 | dex |
| Stellar mass | 0.99 ± 0.05 | Msun |
| Stellar radius | 1.13 ± 0.14 | Rsun |
| Stellar logarithmic surface gravity | 4.32 ± 0.10 | c.g.s. |
| Stellar mean density | 0.70 ± 0.25 ( 0.99 ± 0.35 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.772 ± 0.045 | |
| Orbital semimajor axis | 0.382 ± 0.006 | AU |
| Planetary mass | 1.45 ± 0.35 ( 460 ± 111 ) | Mjup Mearth |
| Planetary radius | 0.94 ± 0.12 ( 10.5 ± 1.3 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | 1.6 ± 0.9 ( 2.1 ± 1.2 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 511 ± 50 | K |
| Reference of detailed study | 2014A+A...571A..37S |
| Reference | λ (degrees) |
|---|---|
| Santerne et al. (2014) | 74 + 32 - 46 |
Page generated on 2025/03/17 John Southworth (Keele University, UK)