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From: Zorbec Legras (no email)
Date: Wed Aug 04 2004 - 13:12:22 EDT
> Is there a way to use the GHA for the sun from the daily page from one
> of the online almanacs to calculate noon GMT, and then use the table
> "Convert Arc to Time" to calculate LAN? Is that possible?
Yes !!
360° - GHA at 12:00:00 UT = T1 équation of time in °'"
Correct for longitude, T1 (+ W/- E) = T2 observer équation of time in °'"
Transform T2 in with table i (first yellow page) = T3 observer équation of time in h mn sec
T3 + 12 h = T4 observer time of transit.
Attention de greatest sun altitude is Not the instant of transit for a mobile observer
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