Q re Anticrepuscular rays on the equinox
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Hello all,
Interested to know whether my logic holds up for this question.
I saw lovely anti-crepuscular rays (here in Phnom Penh, Cambodia) at sunset (about 6:30pm) on 22 September this year.
I believe the equinox this year was 8:21am 23 September.
Would this mean that of all days in the year (possibly bar the other equinox!), those rays on the eve of the equinox would have been converging on the point on the horizon that’s closest possible to true “east”?
(it’d be fun, if so!)
Thanks! -
Well, they say fools rush in, so I will vote yes; but I can see from your link why you exercise some caution in posing the question. I guess you could check against the North Star (but is that ‘true’ north) since you seem to be one of the lucky ones with a vista. In suburbia a vista is not what I get.
And I have never seen anti-crepuscular.
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It’s probably easy to work out, but I would ask Eratosthenes.
https://en.wikipedia.org/wiki/Eratosthenes -
It’s probably easy to work out, but I would ask Eratosthenes.
https://en.wikipedia.org/wiki/Eratosthenes
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