TEPCat: TOI-270d


 

This page summarises the information held within TEPCat for the transiting planetary system TOI-270d. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper arXiv:1903.06107  
Date of discovery paper 2019 / 3 / 15 y / m / d
Right ascension 04 33 39.72 h m s
Declination −51 57 22.4 d m s
V-band apparent magnitude 12.62 mag
K-band apparent magnitude 8.25 mag
Transit duration 0.09
( 2.2 )
day
hour
Transit depth 0.3 %
Time of mid-transit   2458389.67744 ± 0.0010     HJD or BJD
Orbital period 11.38027 ± 0.00028 days
Reference for orbital ephemeris   arXiv:2101.01593  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 3506 ± 70 K
Stellar metal abundance ([Fe/H] or [M/H])   −0.20 ± 0.12 dex
Stellar mass 0.386 ± 0.008   Msun
Stellar radius 0.378 ± 0.011 Rsun
Stellar logarithmic surface gravity 4.872 ± 0.026 c.g.s.
Stellar mean density 7.20 ± 0.63
( 10.16 ± 0.89 )
ρsun
g cm-3
Orbital eccentricity 0.034 ± 0.024  
Orbital semimajor axis   0.07215 ± 0.00049  AU
Planetary mass 0.0150 ± 0.0014
( 4.77 ± 0.45 )
Mjup
Mearth
Planetary radius 0.1789 ± 0.0060
( 2.005 ± 0.067 )
Rjup
Rearth
Planetary surface gravity m/s2
log(cgs)
Planetary mean density 2.47 ± 0.34
( 3.28 ± 0.45 )
ρjup
g cm-3
Planetary equilibrium temperature 387 ± 10 K
Reference of detailed study arXiv:2101.01593  

 

TOI-270d does not have an entry in the catalogue of orbital obliquity measurements.

 

TOI-270d has not been analysed as part of the Homogeneous Studies of Transiting Extrasolar Planets project.

 


Page generated on 2021/12/02           John Southworth   (Keele University, UK)