This page summarises the information held within TEPCat for the transiting planetary system LHS 3844. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2019ApJ...871L..24V | |
| Date of discovery paper | 2018 / 9 / 20 | y / m / d |
| Data/telescope used for discovery | TESS | |
| Right ascension | 22 41 59.09 | h m s |
| Declination | −69 10 10.6 | d m s |
| Right ascension (decimal) | 340.49621 | degrees |
| Declination (decimal) | -69.16961 | degrees |
| V-band apparent magnitude | 15.26 | mag |
| K-band apparent magnitude | 9.15 | mag |
| Transit duration | 0.0218 ( 0.523 ) | day hour |
| Transit depth | 0.4 | % |
| Time of mid-transit | 2460178.83309 ± 0.00011 | HJD or BJD |
| Orbital period | 0.462929709 ± 0.000000042 | days |
| Reference for orbital ephemeris | arXiv:2603.28237 |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 3080 ± 50 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.22 ± 0.10 | dex |
| Stellar mass | 0.151 ± 0.014 | Msun |
| Stellar radius | 0.189 ± 0.006 | Rsun |
| Stellar logarithmic surface gravity | 5.07 ± 0.04 | c.g.s. |
| Stellar mean density | 22.6 ± 0.7 ( 31.89 ± 0.99 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0 | |
| Orbital semimajor axis | 0.00624 +0.00019 −0.00020 | AU |
| Planetary mass | 0.0075 ± 0.0008 ( 2.38 ± 0.25 ) | Mjup Mearth |
| Planetary radius | 0.115 ± 0.004 ( 1.289 ± 0.045 ) | Rjup Rearth |
| Planetary surface gravity | 14.1 +1.2 −1.3 3.15 +0.04 −0.04 | m/s2 log(cgs) |
| Planetary mean density | 4.64 +0.45 −0.46 ( 6.15 +0.60 −0.61 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 816 ± 14 | K |
| Reference of detailed study | arXiv:2603.28237 |
LHS 3844 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2026/04/13 John Southworth (Keele University, UK)