This page summarises the information held within TEPCat for the transiting planetary system DS Tuc. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2019A+A...630A..81B | |
| Date of discovery paper | 2019 / 4 / 4 | y / m / d |
| Data/telescope used for discovery | TESS | |
| Right ascension | 23 39 39.48 | h m s |
| Declination | −69 11 44.7 | d m s |
| Right ascension (decimal) | 354.91450 | degrees |
| Declination (decimal) | -69.19575 | degrees |
| V-band apparent magnitude | 8.23 | mag |
| K-band apparent magnitude | 6.68 | mag |
| Transit duration | 0.13 ( 3.1 ) | day hour |
| Transit depth | 0.4 | % |
| Time of mid-transit | 2458332.30926 ± 0.00037 | HJD or BJD |
| Orbital period | 8.138268 ± 0.000011 | days |
| Reference for orbital ephemeris | 2019ApJ...880L..17N |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5598 +28 −59 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.08 ± 0.06 | dex |
| Stellar mass | 0.959 ± 0.031 | Msun |
| Stellar radius | 0.872 ± 0.027 | Rsun |
| Stellar logarithmic surface gravity | 4.60 ± 0.15 | c.g.s. |
| Stellar mean density | ρsun g cm-3 | |
| Orbital eccentricity | ||
| Orbital semimajor axis | AU | |
| Planetary mass | 0.0 +0.0453 −0.0 ( 0 +14 −0 ) | Mjup Mearth |
| Planetary radius | 0.50 ± 0.02 ( 5.60 ± 0.22 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | ρjup g cm-3 | |
| Planetary equilibrium temperature | K | |
| Reference of detailed study | 2021A+A...650A..66B |
| Reference | λ (degrees) |
|---|---|
| Zhou et al. (2020) | 2.93 + 0.88 - 0.87 |
| Benatti et al. (2021) | 12.1 + 2.6 - 2.1 |
Page generated on 2025/03/24 John Southworth (Keele University, UK)