TEPCat: KELT-1


 

This page summarises the information held within TEPCat for the transiting brown dwarf system KELT-1. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2012ApJ...761..123S  
Date of discovery paper 2012 / 6 / 11 y / m / d
Data/telescope used for discovery KELT  
Right ascension 00 01 26.92 h m s
Declination +39 23 01.7 d m s
Right ascension (decimal) 0.36217 degrees
Declination (decimal) 39.38381 degrees
V-band apparent magnitude 10.70 mag
K-band apparent magnitude 9.44 mag
Transit duration 0.11484
( 2.7562 )
day
hour
Transit depth 0.6 %
Time of mid-transit   2457254.624084 ± 0.000054     HJD or BJD
Orbital period 1.21749385 ± 0.00000004 days
Reference for orbital ephemeris   2023MNRAS.521.1200B  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 6471 +50 −49 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.095 ± 0.080 dex
Stellar mass 1.369 +0.071 −0.075   Msun
Stellar radius 1.501 ± 0.036 Rsun
Stellar logarithmic surface gravity 4.221 +0.018 −0.017 c.g.s.
Stellar mean density 0.404 +0.023 −0.020
( 0.570 +0.032 −0.028 )
ρsun
g cm-3
Orbital eccentricity 0.0055 +0.0084 −0.0039  
Orbital semimajor axis   0.02494 +0.00042 −0.00046  AU
Planetary mass 27.7 +1.0 −1.1
( 88056 +3179 −3497 )
Mjup
Mearth
Planetary radius 1.138 ± 0.030
( 12.76 ± 0.34 )
Rjup
Rearth
Planetary surface gravity 530 +24 −22
4.72 +0.02 −0.02
m/s2
log(cgs)
Planetary mean density 17.6 +1.2 −1.1
( 23.3 + 1.6 − 1.5 )
ρjup
g cm-3
Planetary equilibrium temperature 2421 ± 28 K
Reference of detailed study 2023MNRAS.521.1200B  

 

Entries in the catalogue of orbital obliquity measurements:
 
Reference λ (degrees)
Siverd et al. (2012)   2   ±   16  

 

 


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