This page summarises the information held within TEPCat for the transiting brown dwarf system ZTF J2038+2030. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2021ApJ...919L..26V | |
| Date of discovery paper | 2021 / 5 / 19 | y / m / d |
| Data/telescope used for discovery | ZTF | |
| Right ascension | 00 38 55.00 | h m s |
| Declination | +20 30 26.1 | d m s |
| Right ascension (decimal) | 9.72917 | degrees |
| Declination (decimal) | 20.50725 | degrees |
| V-band apparent magnitude | 17.75 | mag |
| K-band apparent magnitude | mag | |
| Transit duration | 0.004 ( 0.10 ) | day hour |
| Transit depth | 100 | % |
| Time of mid-transit | 2459045.985194 ± 0.000002 | HJD or BJD |
| Orbital period | 0.4319208 ± 0.0000014 | days |
| Reference for orbital ephemeris | 2021ApJ...919L..26V |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 10900 ± 200 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | dex | |
| Stellar mass | 0.505 +0.024 −0.018 | Msun |
| Stellar radius | 0.0143 ± 0.0002 | Rsun |
| Stellar logarithmic surface gravity | 7.832 ± 0.013 | c.g.s. |
| Stellar mean density | ρsun g cm-3 | |
| Orbital eccentricity | 0.0 | |
| Orbital semimajor axis | AU | |
| Planetary mass | 62.1 +3.8 −4.1 ( 19741 +1208 −1303 ) | Mjup Mearth |
| Planetary radius | 0.762 +0.013 −0.011 ( 8.54 +0.15 −0.12 ) | Rjup Rearth |
| Planetary surface gravity | 2660 +130 −180 5.42 +0.02 −0.03 | m/s2 log(cgs) |
| Planetary mean density | 131 +7 −8 ( 173.8 + 9.3 − 10.6 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | K | |
| Reference of detailed study | 2021ApJ...919L..26V |
ZTF J2038+2030 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2023/09/01 John Southworth (Keele University, UK)