This page summarises the information held within TEPCat for the transiting system Kepler-661b. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2016ApJ...822...86M | |
| Date of discovery paper | 2016 / 5 / 10 | y / m / d |
| Data/telescope used for discovery | Kepler | |
| Right ascension | 18 54 50.61 | h m s |
| Declination | +47 51 47.7 | d m s |
| Right ascension (decimal) | 283.71087 | degrees |
| Declination (decimal) | 47.86325 | degrees |
| V-band apparent magnitude | 16.19 | mag |
| K-band apparent magnitude | 13.23 | mag |
| Transit duration | 0.0659 ( 1.582 ) | day hour |
| Transit depth | 0.19 | % |
| Time of mid-transit | 2455004.60296 ± 0.00071 | HJD or BJD |
| Orbital period | 6.0293033 ± 0.0000055 | days |
| Reference for orbital ephemeris | 2016ApJ...822...86M |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 4483 ± 57 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.05 +0.16 −0.15 | dex |
| Stellar mass | 0.700 +0.030 −0.120 | Msun |
| Stellar radius | 0.670 +0.020 −0.040 | Rsun |
| Stellar logarithmic surface gravity | 4.640 +0.020 −0.030 | c.g.s. |
| Stellar mean density | ρsun g cm-3 | |
| Orbital eccentricity | ||
| Orbital semimajor axis | AU | |
| Planetary mass | Mjup Mearth | |
| Planetary radius | 0.254 +0.023 −0.013 ( 2.85 +0.26 −0.15 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | ρjup g cm-3 | |
| Planetary equilibrium temperature | 678 | K |
| Reference of detailed study | 2016ApJ...822...86M |
Kepler-661b does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/08/27 John Southworth (Keele University, UK)