TEPCat: HAT-P-11


 

This page summarises the information held within TEPCat for the transiting planetary system HAT-P-11. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2010ApJ...710.1724B  
Date of discovery paper 2009 / 1 / 2 y / m / d
Data/telescope used for discovery HAT  
Right ascension 19 50 50.25 h m s
Declination +48 04 51.1 d m s
Right ascension (decimal) 297.70938 degrees
Declination (decimal) 48.08086 degrees
V-band apparent magnitude 9.47 mag
K-band apparent magnitude 7.01 mag
Transit duration 0.0980
( 2.352 )
day
hour
Transit depth 0.43 %
Time of mid-transit   2454957.813207 ± 0.000005     HJD or BJD
Orbital period 4.887802443 ± 0.000000034 days
Reference for orbital ephemeris   arXiv:2403.01527  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 4780 ± 50 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.31 ± 0.05 dex
Stellar mass 0.86 ± 0.06   Msun
Stellar radius 0.76 ± 0.01 Rsun
Stellar logarithmic surface gravity 4.563 +0.092 −0.080 c.g.s.
Stellar mean density 1.915 ± 0.081
( 2.70 ± 0.11 )
ρsun
g cm-3
Orbital eccentricity 0.2577 +0.0033 −0.0025  
Orbital semimajor axis   0.0532 ± 0.0010  AU
Planetary mass 0.0787 ± 0.0048
( 25.0 ± 1.5 )
Mjup
Mearth
Planetary radius 0.4466 ± 0.0059
( 5.006 ± 0.066 )
Rjup
Rearth
Planetary surface gravity 13.2 ± 1.1
3.12 ± 0.03
m/s2
log(cgs)
Planetary mean density 0.884 ± 0.064
( 1.173 ± 0.085 )
ρjup
g cm-3
Planetary equilibrium temperature 847 +46 −54 K
Reference of detailed study arXiv:2403.01527  

 

Entries in the catalogue of orbital obliquity measurements:
 
Reference λ (degrees)
Winn et al. (2010)   103   + 26   - 10  
Hirano et al. (2011)   103   + 22   - 18  
Sanchis-Ojeda et al. (2011) solution 1   106   + 15   - 12  
Sanchis-Ojeda et al. (2011) solution 2   121   + 24   - 21  
Deming et al. (2011)almost polar orbit
Bourrier et al. (2023)   133.9   + 7.1   - 8.3  

 

 


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