This page summarises the information held within TEPCat for the transiting planetary system GJ 3929. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2022A+A...659A..17K | |
| Date of discovery paper | 2022 / 2 / 3 | y / m / d |
| Data/telescope used for discovery | TESS | |
| Right ascension | 15 58 18.80 | h m s |
| Declination | +35 24 24.3 | d m s |
| Right ascension (decimal) | 239.57833 | degrees |
| Declination (decimal) | 35.40675 | degrees |
| V-band apparent magnitude | 12.68 | mag |
| K-band apparent magnitude | 7.87 | mag |
| Transit duration | 0.0495 ( 1.188 ) | day hour |
| Transit depth | 0.1 | % |
| Time of mid-transit | 2459320.05808 ± 0.00019 | HJD or BJD |
| Orbital period | 2.6162745 ± 0.0000003 | days |
| Reference for orbital ephemeris | 2022A+A...659A..17K |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 3369 ± 51 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.00 ± 0.16 | dex |
| Stellar mass | 0.309 ± 0.014 | Msun |
| Stellar radius | 0.315 ± 0.010 | Rsun |
| Stellar logarithmic surface gravity | 4.84 ± 0.04 | c.g.s. |
| Stellar mean density | 10.60 +0.33 −0.42 ( 14.96 + 0.47 − 0.59 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.043 +0.030 −0.021 | |
| Orbital semimajor axis | 0.02569 ± 0.00088 | AU |
| Planetary mass | 0.0036 ± 0.0003 ( 1.144 ± 0.095 ) | Mjup Mearth |
| Planetary radius | 0.0972 ± 0.0036 ( 1.090 ± 0.040 ) | Rjup Rearth |
| Planetary surface gravity | 9.0 ± 3.1 3.0 ± 0.1 | m/s2 log(cgs) |
| Planetary mean density | 3.3 ± 1.2 ( 4.4 ± 1.6 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 569 ± 9 | K |
| Reference of detailed study | arXiv:2508.12516 |
GJ 3929 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/08/27 John Southworth (Keele University, UK)