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    Re: Today is Sun fast day
    From: Lu Abel
    Date: 2014 Nov 4, 02:42 +0000
    And there I thought the sun was coming up earlier because we went off Daylight time  *:P tongue  .

    Kind of reminds me of something about a decade ago.   Co-worker who knew I was into celestial and such pointed out to me that around Jan 1st the days were definitely getting longer.  Sunrise was occurring earlier and earlier, but sunset was hardly moving.   Took a few minutes of head scratching (I was low on coffee that morning) and I finally gasped "the analemma!"     Then I had to explain it to my co-worker... 

    At the solstices, the top or bottom of the figure-8 that describes the location of the sun's noontime position are moving almost exclusively east or west -- ie, little change in the sun's declination, but a lot of change in LAN.
     


    From: Frank Reed <NoReply_FrankReed@fer3.com>
    To: luabel{at}ymail.com
    Sent: Monday, November 3, 2014 11:31 AM
    Subject: [NavList] Today is Sun fast day

    Today is "Sun fast day". The Sun is early to the meridian (and all of its other appointments) today by 16 minutes and 26 seconds or equivalentally 4° 06.4' of longitude. During the next three months, the Equation of Time, which is the traditional name for the amount by which the Sun is fast or slow, relative to a true clock, will swing from 16:23 fast to 14:14 slow. Here in central Rhode Island, the Sun reaches the meridian, "high noon", a little more than half an hour before 12:00 o'clock zone time today, while on February 11, the Sun will cross the meridian at almost exactly 12:00 zone time. That's a big change for three short months. 
    Reminder: analemma.com is a nice old web site with lots of interesting material on this topic.
    -FER


       
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