This page summarises the information held within TEPCat for the transiting planetary system TRAPPIST-1h. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2017NatAs...1E.129L | |
| Date of discovery paper | 2017 / 3 / 14 | y / m / d |
| Right ascension | 23 06 29.28 | h m s |
| Declination | −05 02 28.5 | d m s |
| V-band apparent magnitude | 18.80 | mag |
| K-band apparent magnitude | 10.30 | mag |
| Transit duration | 0.05342 ( 1.2821 ) | day hour |
| Transit depth | 0.35 | % |
| Time of mid-transit | 2457662.55467 ± 0.00054 | HJD or BJD |
| Orbital period | 18.767953 ± 0.000080 | days |
| Reference for orbital ephemeris | 2018MNRAS.475.3577D |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 2511 ± 37 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.04 ± 0.08 | dex |
| Stellar mass | 0.0890 ± 0.0070 | Msun |
| Stellar radius | 0.1210 ± 0.0030 | Rsun |
| Stellar logarithmic surface gravity | c.g.s. | |
| Stellar mean density | 51.1 +1.2 −2.4 ( 72.1 + 1.7 − 3.4 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0 | |
| Orbital semimajor axis | 0.0617 +0.0015 −0.0013 | AU |
| Planetary mass | 0.0010 ± 0.0002 ( 0.318 ± 0.064 ) | Mjup Mearth |
| Planetary radius | 0.0690 +0.0024 −0.0023 ( 0.773 +0.027 −0.026 ) | Rjup Rearth |
| Planetary surface gravity | 5.44 ± 0.75 2.74 ± 0.06 | m/s2 log(cgs) |
| Planetary mean density | 3.95 ± 0.56 ( 5.24 ± 0.74 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 169.2 ± 2.4 | K |
| Reference of detailed study | arXiv:1802.01377 |
TRAPPIST-1h does not have an entry in the catalogue of orbital obliquity measurements.
TRAPPIST-1h has not been analysed as part of the Homogeneous Studies of Transiting Extrasolar Planets project.
Page generated on 2018/04/18 John Southworth (Keele University, UK)