File Summary:
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 FileName           Lrecl  Records   Explanations
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ReadMe                 80        .   This file
kepler_2.dat           44      320   Kepler's secunda classis
kepler_3.dat           44      136   Kepler's tertia classis
corrs_2.dat            44        4   Corrections to kepler_2.dat
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Byte-by-byte Description of files: kepler_2.dat kepler_3.dat corrs_2.dat
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   Bytes Format Units   Label   Explanations
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  11- 14  I4    ---     KNo     ?Record number in Tabulae Rudolphinae (1)
  16- 18  A3    ---     TCon    ?Constellation abbreviation (1)
  20- 21  I2    ---     TNum    ?Number in constellation (1)
  23- 24  I2    ---     LO.z    [0/11]? Longitude 1601 Zodiac sign (2)
  26- 27  I2    deg     LO.d    ?Longitude (degrees) within zodiac sign
  29- 30  I2    arcmin  LO.m    ?Longitude (minutes)
  31- 32  F2.1  arcmin  LO.mi   ?Longitude (minutes) fractional part (3)
      34  A1    ---     LA.-    [+-]? Latitude sign
  35- 36  I2    deg     LA.d    ?Latitude (degrees)
  38- 39  I2    arcmin  LA.m    ?Latitude (minutes)
  43- 44  A2    ---     Mag     Magnitude value (4)
      45  A1    ---     Flag    New star flag (5)
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Note (1): these fields are empty on continuation lines for the previous star.
    Continuation lines contain alternative positions or additional comments.

Note (2): The degrees part of the ecliptic longitude is expressed by two
    components: the zodiac sign, an integer from 0 (Aries) to 11 (Pisces), and
    the offset in degrees (in the range [0, 30[) within the zodiac sign.  The
    degrees part of the ecliptic longitude is therefore 30 * Lo.z + Lo.d.  In
    the original, zodiac signs are represented by traditional symbols rather
    than integers.

Note (3): This field is empty or has the value .5, in which case the minutes
    part of the ecliptic longitude is Lo.m + Lo.mi.  Only one entry in
    kepler_2.dat and none in kepler_3.dat have this.

Note (4): The magnitude value is an integer from 1 to 6 or the mention 'ne' for
    nebulous objects.

Note (5): An asterisk here marks stars that have not been observed by the
    ancients. Only two entries in kepler_2.dat and none in kepler_3.dat have
    this.

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History:

  * 2020-09-01: initial release

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