This page summarises the information held within TEPCat for the transiting planetary system Kepler-9d. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2011ApJ...727...24T | |
| Date of discovery paper | 2010 / 11 / 22 | y / m / d |
| Data/telescope used for discovery | Kepler | |
| Right ascension | 19 02 17.76 | h m s |
| Declination | +38 24 03.2 | d m s |
| Right ascension (decimal) | 285.57400 | degrees |
| Declination (decimal) | 38.40089 | degrees |
| V-band apparent magnitude | 13.93 | mag |
| K-band apparent magnitude | 12.34 | mag |
| Transit duration | 0.0821 ( 1.970 ) | day hour |
| Transit depth | 0.02 | % |
| Time of mid-transit | 2455733.15785 ± 0.00026 | HJD or BJD |
| Orbital period | 1.5929592 ± 0.0000010 | days |
| Reference for orbital ephemeris | arXiv:1403.1372 |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5774 ± 60 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.05 ± 0.07 | dex |
| Stellar mass | 1.022 +0.029 −0.039 | Msun |
| Stellar radius | 0.958 ± 0.020 | Rsun |
| Stellar logarithmic surface gravity | 4.49 +0.02 −0.03 | c.g.s. |
| Stellar mean density | 1.16 +0.08 −0.09 ( 1.64 +0.11 −0.13 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0 | |
| Orbital semimajor axis | 0.0271 ± 0.0001 | AU |
| Planetary mass | 0.025 ± 0.013 ( 7.9 ± 4.1 ) | Mjup Mearth |
| Planetary radius | 0.146 +0.017 −0.012 ( 1.64 +0.19 −0.13 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | ρjup g cm-3 | |
| Planetary equilibrium temperature | 2026 ± 60 | K |
| Reference of detailed study | arXiv:1403.1372 |
Kepler-9d does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/03/17 John Southworth (Keele University, UK)