Visualization of Exoplanet Data using Python

by Yanal Kashou

This is a free dataset of exoplanets from the RDatasets.

The data was obtained from the URLs below of the .csv data file and the .html documentation file, respectively:

Read in the Dataset



In [1]:

    
import pandas as pd
planets = pd.read_csv("planets.csv")

Brief Exploration



In [8]:

    
planets.head(3)



In [14]:

    
planets = planets.rename(columns = {'Unnamed: 0':'Number'})
planets.shape









    Out[14]:





(101, 4)



In [19]:

    
planets.describe()









    Out[19]:






  
    
      
      Number
      mass
      period
      eccen
    
  
  
    
      count
      101.000000
      101.000000
      101.000000
      101.000000
    
    
      mean
      51.000000
      3.327287
      666.531252
      0.281548
    
    
      std
      29.300171
      3.680601
      873.749838
      0.210943
    
    
      min
      1.000000
      0.050000
      2.985000
      0.000000
    
    
      25%
      26.000000
      0.930000
      44.280000
      0.100000
    
    
      50%
      51.000000
      1.760000
      337.110000
      0.270000
    
    
      75%
      76.000000
      4.140000
      1089.000000
      0.410000
    
    
      max
      101.000000
      17.500000
      5360.000000
      0.927000



In [70]:

    
p25 = planets.sample(n=25)
p25 = p25.drop('Number', 1)
p25

Plotting with PyPlot and Seaborn

Hexbin Plot



In [55]:

    
import matplotlib.pyplot as plt
import numpy as np
from scipy.stats import kendalltau
import seaborn as sns
sns.set(style="ticks")

sns.jointplot(planets.period, planets.eccen, kind="hex", stat_func=kendalltau, color="blue")
plt.show()

Density Plot



In [62]:

    
sns.kdeplot(planets.period, planets.eccen)
plt.show()

Simple Scatter Plot



In [72]:

    
sns.lmplot('mass', 'eccen', data=planets, fit_reg=False)
plt.show()

	mass	period	eccen
65	3.320	267.20000	0.230
40	1.282	7.12620	0.134
6	0.340	2.98500	0.080
19	0.880	221.60000	0.540
2	0.210	44.28000	0.340
100	17.500	256.03000	0.429
56	2.080	228.52000	0.304
15	0.685	3.52433	0.000
36	1.150	2614.00000	0.000
88	7.700	58.11600	0.529
22	0.900	1136.00000	0.330
50	1.830	454.00000	0.200
13	0.560	30.12000	0.270
27	0.990	872.30000	0.280
30	1.010	540.40000	0.520
76	4.270	1764.00000	0.353
39	1.240	435.60000	0.450
10	0.480	3.48700	0.050
53	1.990	743.00000	0.620
85	7.390	1582.00000	0.478
42	1.550	51.61000	0.649
31	1.010	1942.00000	0.400
77	4.290	1308.50000	0.310
11	0.480	22.09000	0.300
72	4.000	15.78000	0.046

	Number	mass	period	eccen
count	101.000000	101.000000	101.000000	101.000000
mean	51.000000	3.327287	666.531252	0.281548
std	29.300171	3.680601	873.749838	0.210943
min	1.000000	0.050000	2.985000	0.000000
25%	26.000000	0.930000	44.280000	0.100000
50%	51.000000	1.760000	337.110000	0.270000
75%	76.000000	4.140000	1089.000000	0.410000
max	101.000000	17.500000	5360.000000	0.927000