exoplanet.eu parser

[1]:

import pyexoplaneteu  # (install via pip install pyExoplaneteu)
import pandas as pd
import astropy.units as u
import astropy.constants as const

[2]:

planet= 'WASP-39 b'

[3]:

data = pyexoplaneteu.get_data()
df = pd.DataFrame(data, index=data['name'])

[4]:

df_pla = df.loc[planet]

[5]:

R = df_pla['radius']*u.jupiterRad
M = df_pla['mass']*u.jupiterMass
g = M*const.G/R**2
omega = df_pla['orbital_period']*u.day
ap = df_pla['semi_major_axis']*u.au
Rstar = df_pla['star_radius']*u.R_sun
Tstar = df_pla['star_teff']*u.K

data file:

[6]:

print(f'gravity: {g.si}')

gravity: 4.302948386956267 m / s2

[7]:

print(f'rotationperiod [s]: {omega.to(u.day)}, {omega.si}')

rotationperiod [s]: 4.055259 d, 350374.3776 s

[8]:

print(f'rsphere: {R.to(u.jupiterRad)}, {R.si}')

rsphere: 1.27 jupiterRad, 90794840.0 m

opac.yaml file:

[9]:

print(f'semimajoraxis: {ap.to(u.au)}')

semimajoraxis: 0.0486 AU

[10]:

print(f'Rstar: {Rstar.to(u.R_sun)}')

Rstar: 0.895 solRad

[11]:

print(f'Tstar: {Tstar.to(u.K)}')

Tstar: 5400.0 K