This page summarises the information held within TEPCat for the transiting planetary system LHS 1903b. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | arXiv:2602.11271 | |
| Date of discovery paper | 2026 / 2 / 13 | y / m / d |
| Data/telescope used for discovery | TESS | |
| Right ascension | 07 11 27.94 | h m s |
| Declination | +48 19 49.4 | d m s |
| Right ascension (decimal) | 107.86642 | degrees |
| Declination (decimal) | 48.33039 | degrees |
| V-band apparent magnitude | 12.21 | mag |
| K-band apparent magnitude | 8.21 | mag |
| Transit duration | 0.0651 ( 1.562 ) | day hour |
| Transit depth | 0.055 | % |
| Time of mid-transit | 2458844.5771 ± 0.0011 | HJD or BJD |
| Orbital period | 2.1555098 ± 0.0000028 | days |
| Reference for orbital ephemeris | arXiv:2602.11271 |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 3664 ± 70 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.11 ± 0.09 | dex |
| Stellar mass | 0.538 +0.039 −0.030 | Msun |
| Stellar radius | 0.539 ± 0.014 | Rsun |
| Stellar logarithmic surface gravity | 4.75 ± 0.12 | c.g.s. |
| Stellar mean density | 3.44 ± 0.35 ( 4.85 ± 0.49 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.015 +0.014 −0.010 | |
| Orbital semimajor axis | 0.02656 +0.00055 −0.00058 | AU |
| Planetary mass | 0.0103 ± 0.0013 ( 3.27 ± 0.41 ) | Mjup Mearth |
| Planetary radius | 0.1232 ± 0.0041 ( 1.381 ± 0.046 ) | Rjup Rearth |
| Planetary surface gravity | 16.8 ± 2.4 3.23 ± 0.06 | m/s2 log(cgs) |
| Planetary mean density | 5.14 ± 0.87 ( 6.8 ± 1.2 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 796 ± 20 | K |
| Reference of detailed study | arXiv:2602.11271 |
LHS 1903b does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2026/02/19 John Southworth (Keele University, UK)