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    Re: Venus in daylight
    From: David C
    Date: 2020 Mar 31, 22:02 -0700

    Due to  high cloud in the north I hava abandoned today's attempt to see venus with the naked eye.

    Looking at the data I reaised that venus was on the meridian at about 0320 UT.

    UT   Azimuth    Altitude

    0120   029    20

    0200   019    23

    0210  017    24

    0220    014   24

    0320   359    26

    0420   344   24

    0520   330   20

    The exact time of meridian passage can be found from the aeornautical almanc.

    We need GHA = 360 - my east lat

                          =  360° - 175° 05'

                          = 184°  55'

    From the AP  UT 0310 -> GHA 182° 58' which is a difference of 1°  57'

    From the interpolation table (for sun & planets) the increment is 7 min 48 sec

    Hence time of meridian passage of venus  is 0310  + 7m  48sec     =     0318  (rounded to nearest minute).

       
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