Presentation
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       The CANON contains all the lunar eclipses (total or partial by umbra or penumbra) from -2000 to 3000.
        For each eclipse one gives the precise date of the maximum together with the main characterisitics.
        The data is given in displayable and downlable file of moderate size.
        Additional data for total eclipses is available  here.
 
 

       Each  file is organized by year  as follows :
        -----------------------------------------------------

             Year    2001

      JD(TDB)      date       hour   g         type      long  lat  T1    T2    T3    T4    T5    T6
   2451919.348   9/ 1/ 2001  20:21 1.19   Total   Umbra    57   22 17:44 18:42 19:50 20:52 21:59 22:58
   2452096.123   5/ 7/ 2001  14:55 0.50   Partial Umbra   137  -23 12:11 13:35             16:15 17:40
   2452273.938  30/12/ 2001  10:29 0.92   Partial Pen    -157   24  8:25                         12:33

 
Meaning of the fields
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JD    :    Date of the maximum of the eclipse in julian day TDB
date  :    Same in dd/mm/yyyy format and in UT (Gregorian calendar since 15/10/1582)
hour  :    Time of the maximum in hh:mm  in UT
g     :    Magnitude of the eclipse (relative to umbra or penumbra)
type  :    Total or partial in Umbra or Pen(umbra)
long  :    Longitude of the sublunar point on the Earth at maximum ( > east)
lat   :    Latitude of the sublunar point at maximum of the eclipse

      T1 = first contact with penumbra
   T2 = first contact with umbra
   T3 = begining of totality (2nd contact with umbra)
   T4 = end of totality      (3rd contact with umbra)
   T5 = fourth contact with umbra
   T6 = fourth contact with penumbra

• The difference between TDB and UT is quadratically extrapolated in the distant past or in the future from known values of TD - UT.
• The difference reaches several hours in the distance past, so  JD xxxxxxx.500 is not the  beginning of a calendar day in UT.
• Computations are based on lunar and solar theories developped at the Institut de Mécanique Céleste in Paris
• The ratio k between the moon and earth radius is taken as  0.2725076 (IAU recommended value)
• The geometric umbra and penumbra diameters are increased by a factor 1.02 to allow for the refraction in the atmosphere
• The Earth has been condiserd as spherical
• The longitude and latitude of the sublunar point is the pole of hemisphere of visibility.

• years -2000 to -1501
• years -1500 to -1001
• years -1000 to - 501
• years - 500 to -   1
• years     0 to   499
• years   500 to   999
• years  1000 to  1499
• years  1500 to  1999
• years  2000 to  2499
• years  2500 to  2999

 
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