This page summarises the information held within TEPCat for the transiting planetary system SPECULOOS-3. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | arXiv:2406.00794 | |
| Date of discovery paper | 2024 / 6 / 4 | y / m / d |
| Data/telescope used for discovery | SPECULOOS | |
| Right ascension | 20 49 27.44 | h m s |
| Declination | +33 36 51.0 | d m s |
| Right ascension (decimal) | 312.36433 | degrees |
| Declination (decimal) | 33.61417 | degrees |
| V-band apparent magnitude | 17.80 | mag |
| K-band apparent magnitude | 10.54 | mag |
| Transit duration | 0.0190 ( 0.456 ) | day hour |
| Transit depth | 0.5 | % |
| Time of mid-transit | 2459790.58344 ± 0.00032 | HJD or BJD |
| Orbital period | 0.71912603 ± 0.00000057 | days |
| Reference for orbital ephemeris | arXiv:2406.00794 |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 2800 ± 29 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.07 ± 0.10 | dex |
| Stellar mass | 0.1009 ± 0.0024 | Msun |
| Stellar radius | 0.1230 ± 0.0022 | Rsun |
| Stellar logarithmic surface gravity | 5.265 ± 0.014 | c.g.s. |
| Stellar mean density | 54.7 ± 2.5 ( 77.2 ± 3.5 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0 | |
| Orbital semimajor axis | 0.00733 ± 0.00006 | AU |
| Planetary mass | Mjup Mearth | |
| Planetary radius | 0.0872 ± 0.0020 ( 0.977 ± 0.022 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | ρjup g cm-3 | |
| Planetary equilibrium temperature | 553 ± 8 | K |
| Reference of detailed study | arXiv:2406.00794 |
SPECULOOS-3 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/03/17 John Southworth (Keele University, UK)