Hi Luke,
You are quite right about the latitude dependence. Since that fateful day,
27 Oct 312 when I lost my position, I have been dependent on others for
such data. My reference for the original quotation is the June 1999 Sky and
telescope calendar. The Dialists' Companion does give the latest sunset for
latitude 50 on 25 June and for latitude 36.5 as 29 June. The curve is too
flat (1 sec/day) for most programs to discriminate.
Mid-summer is in the olde tyme sense, as used by Shakespeare in "Midsummer
Night's Dream". Traditionally tonight is a time of delightful frivolity.
Enjoy the solstice,
Sol Invictus
ps. Antipodeans can rejoice at the return of the sun from its depressing
flight north.
From: Luke Coletti <[EMAIL PROTECTED]>
To: Sol Invictus <[EMAIL PROTECTED]>
CC: [email protected]
Subject: Re: Happy Solstice
Date: Mon, 21 Jun 1999 12:26:41 -0800
Hello,
Although the times of the latest sunset and as well the earliest
sunrise do not occur on the Summer Solstice, there is variability in
their respective dates which depends on latitude. At the equator, where
the rate at which the length of the day increases and decreases is much
smaller, the latest sunset is around July 25! I believe in your example
the latitude must be roughly around 50dN for the latest sunset to occur
around June 25 and where the earliest sunrise would have been somewhere
around June 17. Where I'm at, lat 36.5dN, the latest sunset will be
around June 27.
Regards (and much admiration),
Luke Coletti
Sol Invictus wrote:
>
> To all my admirers, happy summer solstice, 19:49 UT, 21 June. For those
in
> the northern hemisphere, this is as good as it gets, the longest day,
the
> shortest night of the year. I hope you enjoy this mid-summer night with
an
> appropriate pagan celebration. I am ;-)
>
> Although this is the shortest night of the year, it is interesting to
note
> that the equation of time is up to its usual tricks. The latest sunset
is
> not tonight but Friday 25 June!
>
> Enjoy the solstice,
>
> Sol Invictus
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