TEPCat: K2-285b


 

This page summarises the information held within TEPCat for the transiting planetary system K2-285b. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2019A+A...623A..41P  
Date of discovery paper 2018 / 8 / 2 y / m / d
Data/telescope used for discovery K2  
Right ascension 23 17 32.23 h m s
Declination +01 18 01.0 d m s
Right ascension (decimal) 349.38429 degrees
Declination (decimal) 1.30028 degrees
V-band apparent magnitude 12.03 mag
K-band apparent magnitude 9.97 mag
Transit duration 0.107
( 2.57 )
day
hour
Transit depth 0.097 %
Time of mid-transit   2457743.37545 ± 0.00051     HJD or BJD
Orbital period 3.471745 ± 0.000045 days
Reference for orbital ephemeris   2019A+A...623A..41P  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 4975 ± 95 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.00 ± 0.05 dex
Stellar mass 0.830 ± 0.023   Msun
Stellar radius 0.787 ± 0.016 Rsun
Stellar logarithmic surface gravity 4.4 ± 0.1 c.g.s.
Stellar mean density ρsun
g cm-3
Orbital eccentricity 0.0  
Orbital semimajor axis   0.03817 +0.00095 −0.00092  AU
Planetary mass 0.0305 +0.0038 −0.0043
( 9.7 +1.2 −1.4 )
Mjup
Mearth
Planetary radius 0.231 ± 0.005
( 2.589 ± 0.056 )
Rjup
Rearth
Planetary surface gravity 14.2 +1.9 −2.0
3.15 +0.05 −0.07
m/s2
log(cgs)
Planetary mean density 2.31 ± 0.34
( 3.06 ± 0.45 )
ρjup
g cm-3
Planetary equilibrium temperature 1089 ± 22 K
Reference of detailed study 2019A+A...623A..41P  

 

K2-285b does not have an entry in the catalogue of orbital obliquity measurements.

 

K2-285b has not been analysed as part of the Homogeneous Studies of Transiting Extrasolar Planets project.

 


Page generated on 2022/12/07           John Southworth   (Keele University, UK)