This page summarises the information held within TEPCat for the transiting planetary system LP 890-9c. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2022A+A...667A..59D | |
| Date of discovery paper | 2022 / 9 / 8 | y / m / d |
| Data/telescope used for discovery | TESS | |
| Right ascension | 04 16 31.16 | h m s |
| Declination | −28 18 53.0 | d m s |
| Right ascension (decimal) | 64.12983 | degrees |
| Declination (decimal) | -28.31472 | degrees |
| V-band apparent magnitude | 18.0 | mag |
| K-band apparent magnitude | 11.34 | mag |
| Transit duration | 0.0400 ( 0.960 ) | day hour |
| Transit depth | 0.7 | % |
| Time of mid-transit | 2459520.70598 ± 0.00031 | HJD or BJD |
| Orbital period | 8.457463 ± 0.000024 | days |
| Reference for orbital ephemeris | 2022A+A...667A..59D |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 2850 ± 75 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.028 ± 0.089 | dex |
| Stellar mass | 0.118 ± 0.002 | Msun |
| Stellar radius | 0.1556 ± 0.0086 | Rsun |
| Stellar logarithmic surface gravity | 5.126 +0.050 −0.047 | c.g.s. |
| Stellar mean density | 31.3 +5.9 −4.7 ( 44.2 + 8.3 − 6.6 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0 | |
| Orbital semimajor axis | 0.03984 ± 0.00022 | AU |
| Planetary mass | 0.0 +0.080 −0.0 ( 0 +25 −0 ) | Mjup Mearth |
| Planetary radius | 0.1220 +0.0049 −0.0035 ( 1.367 +0.055 −0.039 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | ρjup g cm-3 | |
| Planetary equilibrium temperature | 272 ± 2 | K |
| Reference of detailed study | 2022A+A...667A..59D |
LP 890-9c does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/03/17 John Southworth (Keele University, UK)