This page summarises the information held within TEPCat for the transiting planetary system AU Mic b. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2020Natur.582..497P | |
| Date of discovery paper | 2020 / 6 / 25 | y / m / d |
| Data/telescope used for discovery | TESS | |
| Right ascension | 20 45 09.53 | h m s |
| Declination | −31 20 27.2 | d m s |
| Right ascension (decimal) | 311.28971 | degrees |
| Declination (decimal) | -31.34089 | degrees |
| V-band apparent magnitude | 8.63 | mag |
| K-band apparent magnitude | 4.53 | mag |
| Transit duration | 0.1456 ( 3.494 ) | day hour |
| Transit depth | 0.3 | % |
| Time of mid-transit | 2458330.39017 ± 0.00072 | HJD or BJD |
| Orbital period | 8.46303507 ± 0.00000025 | days |
| Reference for orbital ephemeris | arXiv:2302.04922 |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 3700 ± 100 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | dex | |
| Stellar mass | 0.50 ± 0.03 | Msun |
| Stellar radius | 0.75 ± 0.03 | Rsun |
| Stellar logarithmic surface gravity | 4.39 ± 0.03 | c.g.s. |
| Stellar mean density | ρsun g cm-3 | |
| Orbital eccentricity | 0.120 +0.089 −0.063 | |
| Orbital semimajor axis | 0.0831 +0.0009 −0.0016 | AU |
| Planetary mass | 0.12 +0.19 −0.05 ( 38 +60 −15 ) | Mjup Mearth |
| Planetary radius | 0.4571 +0.0055 −0.0090 ( 5.124 +0.062 −0.101 ) | Rjup Rearth |
| Planetary surface gravity | 13 +23 −6 3.1 +0.4 −0.3 | m/s2 log(cgs) |
| Planetary mean density | 1.1 +1.9 −0.5 ( 1.46 +2.52 −0.66 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 570 ± 5 | K |
| Reference of detailed study | arXiv:2302.04922 |
| Reference | λ (degrees) |
|---|---|
| Hirano et al. (2020) | −4.7 + 6.8 - 6.4 |
| Martioli et al. (2020) | −0.1 + 5.1 - 5.0 |
| Palle et al. (2020) | −3.0 + 10.4 - 10.3 |
| Addison et al. (2020) | 5 + 16 - 15 |
Page generated on 2023/09/01 John Southworth (Keele University, UK)