This page summarises the information held within TEPCat for the transiting brown dwarf system NGTS-28. Please see here for descriptions of the quantities given below.
Quantity | Value | Unit |
---|---|---|
Reference of discovery paper | 2024MNRAS.530..318H | |
Date of discovery paper | 2024 / 2 / 16 | y / m / d |
Data/telescope used for discovery | NGTS | |
Right ascension | 14 11 42.99 | h m s |
Declination | −29 58 26.7 | d m s |
Right ascension (decimal) | 212.92912 | degrees |
Declination (decimal) | -29.97408 | degrees |
V-band apparent magnitude | 14.74 | mag |
K-band apparent magnitude | 11.76 | mag |
Transit duration | 0.0558 ( 1.339 ) | day hour |
Transit depth | 2.8 | % |
Time of mid-transit | 2458953.9685 ± 0.0001 | HJD or BJD |
Orbital period | 1.2541 ± 0.0001 | days |
Reference for orbital ephemeris | 2024MNRAS.530..318H |
Quantity | Value | Unit |
---|---|---|
Stellar effective temperature | 3626 +47 −44 | K |
Stellar metal abundance ([Fe/H] or [M/H]) | −0.14 +0.16 −0.17 | dex |
Stellar mass | 0.56 ± 0.02 | Msun |
Stellar radius | 0.59 ± 0.03 | Rsun |
Stellar logarithmic surface gravity | 4.74 +0.10 −0.09 | c.g.s. |
Stellar mean density | 3.44 ± 0.16 ( 4.85 ± 0.23 ) | ρsun g cm-3 |
Orbital eccentricity | 0.0404 +0.0067 −0.0101 | |
Orbital semimajor axis | 0.0202 ± 0.0011 | AU |
Planetary mass | 69.0 +5.3 −4.8 ( 21934 +1685 −1526 ) | Mjup Mearth |
Planetary radius | 0.954 +0.049 −0.048 ( 10.69 + 0.55 − 0.54 ) | Rjup Rearth |
Planetary surface gravity | 2108 +78 −77 5.32 +0.02 −0.02 | m/s2 log(cgs) |
Planetary mean density | 74 +18 −14 ( 98 +23 −18 ) | ρjup g cm-3 |
Planetary equilibrium temperature | 863 +13 −12 | K |
Reference of detailed study | 2024MNRAS.530..318H |
NGTS-28 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/02/12 John Southworth (Keele University, UK)