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    Re: Tycho Brahe Mars oppositions
    From: Michael Dorl
    Date: 2004 Nov 29, 14:46 -0600

    George:
    
    Do you now how these times were calculated or how opposition is defined here?
    
    Michael
    
    
    At 12:35 AM 11/28/04 +0000, you wrote:
    
    >Finally, here are some relevant dates and times taken from Jean Meeus'
    >"Astronomical tables of the Sun, Moon, and planets" (Willman-Bell 1995).
    >These are from Table 2, "Oppositions of Mars", on page 81. Meeus tells us
    >that he uses the Julian Calendar until Oct 4 1582, then the Gregorian from
    >15 Oct 1582 (the next day). The times are in TD, and are geometrical, i.e.
    >at the moment the opposition occurred; not the moment it was seen, which
    >would be about 7 min later. That distinction was presumably irrelevant to
    >Tycho.
    >
    >18/11/1580 11:41
    >07/01/1583 16:11
    >10/02/1585 07:27
    >16/03/1587 21:38
    >24/04/1589 19:55
    >18/06/1591 18:21
    >05/09/1593 02:11
    >10/11/1595 10:40
    >24/12/1597 02:41
    >29/01/1600 03:14
    >03/03/1602 04:28
    >08/04/1604 05:53
    
    
    

       
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