TEPCat: K2-285c


 

This page summarises the information held within TEPCat for the transiting planetary system K2-285c. 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 0.128
( 3.07 )
day
hour
Transit depth 0.21 %
Time of mid-transit   2457744.53906 ± 0.00038     HJD or BJD
Orbital period 7.138048 ± 0.000068 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   0.0824 ± 0.0018  AU
Planetary mass 0.0493 +0.0072 −0.0067
( 15.7 +2.3 −2.1 )
Mjup
Mearth
Planetary radius 0.315 ± 0.007
( 3.531 ± 0.078 )
Rjup
Rearth
Planetary surface gravity 12.3 +1.9 −1.7
3.09 +0.06 −0.06
m/s2
log(cgs)
Planetary mean density 1.47 +0.24 −0.21
( 1.95 +0.32 −0.28 )
ρjup
g cm-3
Planetary equilibrium temperature 741 ± 15 K
Reference of detailed study 2019A+A...623A..41P  

 

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

 

K2-285c 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)