TEPCat: HD 1397


 

This page summarises the information held within TEPCat for the transiting planetary system HD 1397. 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.100N  
Date of discovery paper 2018 / 11 / 6 y / m / d
Data/telescope used for discovery TESS  
Right ascension 00 17 47.14 h m s
Declination −66 21 32.3 d m s
Right ascension (decimal) 4.44642 degrees
Declination (decimal) -66.35897 degrees
V-band apparent magnitude 7.87 mag
K-band apparent magnitude 5.99 mag
Transit duration 0.3585
( 8.604 )
day
hour
Transit depth 0.25 %
Time of mid-transit   2458332.08230 ± 0.00050     HJD or BJD
Orbital period 11.53604 ± 0.00036 days
Reference for orbital ephemeris   2019A+A...623A.100N  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 5528 ± 50 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.273 ± 0.05 dex
Stellar mass 1.322 ± 0.040   Msun
Stellar radius 2.328 +0.050 −0.056 Rsun
Stellar logarithmic surface gravity 3.826 +0.020 −0.018 c.g.s.
Stellar mean density 0.105 +0.007 −0.006
( 0.1482 +0.0099 −0.0085 )
ρsun
g cm-3
Orbital eccentricity 0.265 ± 0.023  
Orbital semimajor axis   0.1097 +0.0011 −0.0012  AU
Planetary mass 0.419 ± 0.024
( 133.20 ± 7.63 )
Mjup
Mearth
Planetary radius 1.023 +0.023 −0.026
( 11.47 + 0.26 − 0.29 )
Rjup
Rearth
Planetary surface gravity 9.93 +0.70 −0.71
3.00 +0.03 −0.03
m/s2
log(cgs)
Planetary mean density 0.367 +0.032 −0.030
( 0.487 +0.042 −0.040 )
ρjup
g cm-3
Planetary equilibrium temperature 1228 ± 10 K
Reference of detailed study 2019A+A...623A.100N  

 

HD 1397 does not have an entry in the catalogue of orbital obliquity measurements.

 

HD 1397 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)