TEPCat: GJ 1214


 

This page summarises the information held within TEPCat for the transiting planetary system GJ 1214. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2009Natur.462..891C  
Date of discovery paper 2009 / 12 / 17 y / m / d
Data/telescope used for discovery MEarth  
Right ascension 17 15 18.94 h m s
Declination +04 57 49.7 d m s
Right ascension (decimal) 258.82892 degrees
Declination (decimal) 4.96381 degrees
V-band apparent magnitude 14.67 mag
K-band apparent magnitude 8.78 mag
Transit duration 0.03624
( 0.8698 )
day
hour
Transit depth 1.7 %
Time of mid-transit   2459639.781262 ± 0.000009     HJD or BJD
Orbital period 1.580404531 ± 0.000000018 days
Reference for orbital ephemeris   2024ApJ...963L..37M  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 3101 ± 43 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.24 ± 0.11 dex
Stellar mass 0.1820 +0.0042 −0.0041   Msun
Stellar radius 0.2162 +0.0025 −0.0024 Rsun
Stellar logarithmic surface gravity 5.0286 +0.0078 −0.0088 c.g.s.
Stellar mean density 18.00 +0.44 −0.50
( 25.40 + 0.62 − 0.71 )
ρsun
g cm-3
Orbital eccentricity 0.0062 +0.0079 −0.0044  
Orbital semimajor axis   0.01505 ± 0.00011  AU
Planetary mass 0.0265 ± 0.0011
( 8.42 ± 0.35 )
Mjup
Mearth
Planetary radius 0.2438 +0.0029 −0.0028
( 2.733 +0.033 −0.031 )
Rjup
Rearth
Planetary surface gravity 11.04 +0.49 −0.47
3.04 +0.02 −0.02
m/s2
log(cgs)
Planetary mean density 1.70 ± 0.08
( 2.26 ± 0.11 )
ρjup
g cm-3
Planetary equilibrium temperature 567 ± 8 K
Reference of detailed study 2024ApJ...963L..37M  

 

GJ 1214 does not have an entry in the catalogue of orbital obliquity measurements.

 


Page generated on 2024/04/19           John Southworth   (Keele University, UK)