This page summarises the information held within TEPCat for the transiting planetary system HR 858b. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2019ApJ...881L..19V | |
| Date of discovery paper | 2019 / 5 / 14 | y / m / d |
| Data/telescope used for discovery | TESS | |
| Right ascension | 02 51 56.25 | h m s |
| Declination | −30 48 52.3 | d m s |
| Right ascension (decimal) | 42.98438 | degrees |
| Declination (decimal) | -30.81453 | degrees |
| V-band apparent magnitude | 6.38 | mag |
| K-band apparent magnitude | 5.15 | mag |
| Transit duration | 0.1129 ( 2.710 ) | day hour |
| Transit depth | 0.02 | % |
| Time of mid-transit | 2458409.18969 ± 0.00084 | HJD or BJD |
| Orbital period | 3.58599 ± 0.00015 | days |
| Reference for orbital ephemeris | 2019ApJ...881L..19V |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 6201 ± 50 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.14 ± 0.08 | dex |
| Stellar mass | 1.145 +0.074 −0.080 | Msun |
| Stellar radius | 1.310 +0.024 −0.022 | Rsun |
| Stellar logarithmic surface gravity | 4.262 +0.032 −0.036 | c.g.s. |
| Stellar mean density | 0.508 ± 0.045 ( 0.717 ± 0.063 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.00 +0.30 −0.00 | |
| Orbital semimajor axis | 0.0480 +0.0010 −0.0011 | AU |
| Planetary mass | Mjup Mearth | |
| Planetary radius | 0.1860 +0.0061 −0.0057 ( 2.085 +0.068 −0.064 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | ρjup g cm-3 | |
| Planetary equilibrium temperature | 1572 +22 −19 | K |
| Reference of detailed study | 2019ApJ...881L..19V |
HR 858b does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2024/09/10 John Southworth (Keele University, UK)