This page summarises the information held within TEPCat for the transiting system K2-154b. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2018AJ....156...78L | |
| Date of discovery paper | 2018 / 7 / 2 | y / m / d |
| Data/telescope used for discovery | K2 | |
| Right ascension | 12 36 00.36 | h m s |
| Declination | −02 40 10.1 | d m s |
| Right ascension (decimal) | 189.00150 | degrees |
| Declination (decimal) | -2.66947 | degrees |
| V-band apparent magnitude | 13.03 | mag |
| K-band apparent magnitude | 10.37 | mag |
| Transit duration | 0.0847 ( 2.033 ) | day hour |
| Transit depth | 0.08 | % |
| Time of mid-transit | 2457585.05330 ± 0.00370 | HJD or BJD |
| Orbital period | 3.6762600 ± 0.0003000 | days |
| Reference for orbital ephemeris | 2018AJ....156...78L |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 4097 +40 −45 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | 0.21 +0.09 −0.10 | dex |
| Stellar mass | 0.650 +0.020 −0.010 | Msun |
| Stellar radius | 0.630 ± 0.010 | Rsun |
| Stellar logarithmic surface gravity | 4.650 ± 0.010 | c.g.s. |
| Stellar mean density | 3.000 +1.400 −1.800 ( 4.2 +2.0 −2.5 ) | ρsun g cm-3 |
| Orbital eccentricity | ||
| Orbital semimajor axis | 0.04050 ± 0.00030 | AU |
| Planetary mass | Mjup Mearth | |
| Planetary radius | 0.178 +0.019 −0.010 ( 2.00 +0.21 −0.11 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | ρjup g cm-3 | |
| Planetary equilibrium temperature | 715 +9 −8 | K |
| Reference of detailed study | 2018AJ....156...78L |
K2-154b does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/08/27 John Southworth (Keele University, UK)