TEPCat: K2-141b


 

This page summarises the information held within TEPCat for the transiting planetary system K2-141b. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2018A+A...612A..95B  
Date of discovery paper 2017 / 11 / 7 y / m / d
Right ascension 23 23 39.97 h m s
Declination −01 11 21.4 d m s
V-band apparent magnitude 11.49 mag
K-band apparent magnitude 8.40 mag
Transit duration 0.039
( 0.94 )
day
hour
Transit depth 0.05 %
Time of mid-transit   2457738.46540 ± 0.00022     HJD or BJD
Orbital period 0.2803226 ± 0.0000013 days
Reference for orbital ephemeris   2018A+A...612A..95B  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 4599 ± 79 K
Stellar metal abundance ([Fe/H] or [M/H])   −0.06 +0.08 −0.10 dex
Stellar mass 0.706 +0.021 −0.015   Msun
Stellar radius 0.6862 +0.0066 −0.0080 Rsun
Stellar logarithmic surface gravity 4.62 +0.02 −0.03 c.g.s.
Stellar mean density 2.74 +0.11 −0.13
( 3.87 +0.16 −0.18 )
ρsun
g cm-3
Orbital eccentricity 0.0  
Orbital semimajor axis   0.00716 +0.00055 −0.00065  AU
Planetary mass 0.0162 ± 0.0011
( 5.15 ± 0.35 )
Mjup
Mearth
Planetary radius 0.1332 +0.0037 −0.0031
( 1.493 +0.041 −0.035 )
Rjup
Rearth
Planetary surface gravity m/s2
log(cgs)
Planetary mean density 6.4 +1.0 −0.9
( 8.5 +1.3 −1.2 )
ρjup
g cm-3
Planetary equilibrium temperature 2039 +87 −48 K
Reference of detailed study arXiv:1908.06299  

 

K2-141b does not have an entry in the catalogue of orbital obliquity measurements.

 

K2-141b 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)