TEPCat: Kepler-1661


 

This page summarises the information held within TEPCat for the transiting system Kepler-1661. Please see here for descriptions of the quantities given below.

This object consists of an eclipsing binary star system which is itself eclipsed by one or more transiting planets. The binarity of the central star causes problems for structured databases. The stellar data below refer specifically to the primary star, and the planetary data to the transiting planet. For further information on the secondary star or the system as a whole please consult the publication(s) referenced below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2020AJ....159...94S  
Date of discovery paper 2020 / 1 / 13 y / m / d
Data/telescope used for discovery Kepler  
Right ascension 19 00 40.11 h m s
Declination +41 58 01.4 d m s
Right ascension (decimal) 285.16712 degrees
Declination (decimal) 41.96706 degrees
V-band apparent magnitude 14.43 mag
K-band apparent magnitude 12.16 mag
Transit duration 0.4
( 10. )
day
hour
Transit depth 0.2 %
Time of mid-transit   2456007.1 ± 0.4     HJD or BJD
Orbital period 175.06 ± 0.06 days
Reference for orbital ephemeris   2020AJ....159...94S  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 5100 ± 100 K
Stellar metal abundance ([Fe/H] or [M/H])   dex
Stellar mass 0.841 ± 0.022   Msun
Stellar radius 0.762 ± 0.010 Rsun
Stellar logarithmic surface gravity c.g.s.
Stellar mean density ρsun
g cm-3
Orbital eccentricity 0.057 ± 0.005  
Orbital semimajor axis   0.633 ± 0.05  AU
Planetary mass 0.053 ± 0.038
( 16 ± 12 )
Mjup
Mearth
Planetary radius 0.345 ± 0.005
( 3.867 ± 0.056 )
Rjup
Rearth
Planetary surface gravity m/s2
log(cgs)
Planetary mean density 1.2 ± 0.8
( 1.6 ± 1.1 )
ρjup
g cm-3
Planetary equilibrium temperature K
Reference of detailed study 2020AJ....159...94S  

 

Kepler-1661 does not have an entry in the catalogue of orbital obliquity measurements.

 


Page generated on 2025/02/12           John Southworth   (Keele University, UK)