TEPCat: TOI-1855


 

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.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper arXiv:2401.05923  
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   arXiv:2401.05923  

 

Physical properties from the most recent detailed study:
 
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 arXiv:2401.05923  

 

TOI-1855 does not have an entry in the catalogue of orbital obliquity measurements.

 


Page generated on 2024/03/28           John Southworth   (Keele University, UK)