TEPCat: TOI-270b


 

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

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2019NatAs...3.1099G  
Date of discovery paper 2019 / 3 / 15 y / m / d
Data/telescope used for discovery TESS  
Right ascension 04 33 39.72 h m s
Declination −51 57 22.4 d m s
Right ascension (decimal) 68.41550 degrees
Declination (decimal) -51.95622 degrees
V-band apparent magnitude 12.62 mag
K-band apparent magnitude 8.25 mag
Transit duration 0.06
( 1.4 )
day
hour
Transit depth 0.09 %
Time of mid-transit   2458461.01556 ± 0.00059     HJD or BJD
Orbital period 3.36016 ± 0.00004 days
Reference for orbital ephemeris   arXiv:2308.10763  

 

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 0.380 ± 0.008 Rsun
Stellar logarithmic surface gravity 4.872 ± 0.026 c.g.s.
Stellar mean density 7.53 ± 0.52
( 10.62 ± 0.73 )
ρsun
g cm-3
Orbital eccentricity 0.036 ± 0.027  
Orbital semimajor axis   0.03199 ± 0.00022  AU
Planetary mass 0.0047 ± 0.0006
( 1.49 ± 0.19 )
Mjup
Mearth
Planetary radius 0.1142 ± 0.0045
( 1.280 ± 0.050 )
Rjup
Rearth
Planetary surface gravity m/s2
log(cgs)
Planetary mean density 2.93 ± 0.50
( 3.89 ± 0.66 )
ρjup
g cm-3
Planetary equilibrium temperature 600 ± 16 K
Reference of detailed study arXiv:2308.10763  

 

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

 


Page generated on 2024/05/08           John Southworth   (Keele University, UK)