mirror of https://github.com/espruino/BangleApps
39 lines
1.3 KiB
Python
39 lines
1.3 KiB
Python
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'''
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* This information is from the Yale Bright Star Catalog. First number is the RA (Right ascension) in radians. Careful because in all
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* the catalogs this is in Hour angle. We have to convert it to degrees and then to radians.
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* The second number is the DE (declination) in radians. In this case in the catalogs is in degrees, just convert to radians.
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* Third number is the aparent magnitude
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'''
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import csv
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import math
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with open('starsoriginal.csv') as csv_file:
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csv_reader = csv.reader(csv_file, delimiter=',')
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for row in csv_reader:
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data_read = [row for row in csv_reader]
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stars=[]
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for row in data_read:
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hours = float(row[0])
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min = float(row[1])
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seg = float(row[2])
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rahours = hours+(min+seg/60)/60
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radegress = rahours*360/24
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radradians = math.radians(radegress)
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deg = float(row[3])
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dem = float(row[4])
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des = float(row[5])
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if (deg<0):
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desex = deg-(dem+des/60)/60
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else:
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desex = deg+(dem+des/60)/60
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derad = math.radians(desex)
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stars.append(['{:.3f}'.format(radradians),'{:.3f}'.format(derad),'{:.1f}'.format(float(row[6])),row[7].strip()])
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with open("planetarium.stars.csv", "wt") as fp:
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writer = csv.writer(fp, delimiter=",")
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# writer.writerow(["your", "header", "foo"]) # write header
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writer.writerows(stars)
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