This page summarises the information held within TEPCat for the transiting planetary system TOI-1855. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2024AJ....168...32S | |
| Date of discovery paper | 2024 / 1 / 12 | y / m / d |
| Data/telescope used for discovery | TESS | |
| Right ascension | 13 41 25.03 | h m s |
| Declination | +17 41 14.0 | d m s |
| Right ascension (decimal) | 205.35429 | degrees |
| Declination (decimal) | 17.68722 | degrees |
| V-band apparent magnitude | 11.39 | mag |
| K-band apparent magnitude | 9.52 | mag |
| Transit duration | 0.04977 ( 1.1945 ) | day hour |
| Transit depth | 0.71 | % |
| Time of mid-transit | 2458929.44324 ± 0.00032 | HJD or BJD |
| Orbital period | 1.36414864 ± 0.00000051 | days |
| Reference for orbital ephemeris | 2024AJ....168...32S |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5359 +89 −83 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.399 +0.069 −0.079 | dex |
| Stellar mass | 0.987 +0.058 −0.045 | Msun |
| Stellar radius | 1.041 +0.031 −0.033 | Rsun |
| Stellar logarithmic surface gravity | 4.397 +0.040 −0.031 | c.g.s. |
| Stellar mean density | 0.87 +0.11 −0.08 ( 1.23 +0.16 −0.11 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.033 +0.038 −0.023 | |
| Orbital semimajor axis | 0.02398 +0.00046 −0.00037 | AU |
| Planetary mass | 1.133 +0.096 −0.091 ( 360 +30 −28 ) | Mjup Mearth |
| Planetary radius | 1.65 +0.52 −0.37 ( 18.5 + 5.8 − 4.1 ) | Rjup Rearth |
| Planetary surface gravity | 10.2 +7.1 −4.3 3.0 +0.2 −0.2 | m/s2 log(cgs) |
| Planetary mean density | 0.23 +0.28 −0.14 ( 0.31 +0.37 −0.19 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 1701 ± 20 | K |
| Reference of detailed study | 2024AJ....168...32S |
TOI-1855 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/03/17 John Southworth (Keele University, UK)