I realize this isn't strictly what you're asking for, but, there used to be a reference in the remind documentation for a Navy run list of solar data, however it's been replaced with a much more accurate system. The script below connects to that new page and can get you the list of solar events for a given span of years.
#!/bin/bash # The list of sun positions below is from the Astronomical Applications # Department of the U.S. Naval Observatory # Output=SolarDataReminders File=$(mktemp) for Year in $(seq 2018 2068) do links "http://aa.usno.navy.mil/seasons?year=${Year}&tz=0&dst=0"; -dump \ | grep -E 'helion|quinox|olstice' \ | sed -e 's/ */ /g' -e 's/^ *\(.*\) *$/\1/' \ >> ${File} done while read Event Year Month Day Time do Comdelimit=$(echo ${Time} | tr ":" ",") echo "REM [trigger(date("${Year}","${Month}","${Day}"), time("${Comdelimit}"), 1)] MSG "${Event} ; echo done < ${File} >> ${Output} rm ${File} After running, you should have accurate Remind statements in the file SolarDataReminders in your present working directory. REM [trigger(date(2019,Jan,03), time(05,20), 1)] MSG Perihelion REM [trigger(date(2019,Mar,20), time(21,58), 1)] MSG Equinox REM [trigger(date(2019,Jun,21), time(15,54), 1)] MSG Solstice REM [trigger(date(2019,Jul,04), time(22,11), 1)] MSG Aphelion REM [trigger(date(2019,Sep,23), time(07,50), 1)] MSG Equinox REM [trigger(date(2019,Dec,22), time(04,19), 1)] MSG Solstice REM [trigger(date(2020,Jan,05), time(07,48), 1)] MSG Perihelion REM [trigger(date(2020,Mar,20), time(03,50), 1)] MSG Equinox REM [trigger(date(2020,Jun,20), time(21,44), 1)] MSG Solstice Any questions, please ask! Steve Jones -----Original Message----- From: Remind-fans <[email protected]> On Behalf Of Matthias Teege Sent: Thursday, March 21, 2019 6:33 AM To: [email protected] Subject: [Remind-Fans] Beginning of spring Hi, On a give occasion I've tried to calculate the beginning of spring (day and night same lenght) in remind. I've played with [sunrise(trigdate()) - sunset(trigdate())] but is not exact enough. Is it possible at all, to calculate the beginn of spring in remind? Any hints? Thanks, Matthias _______________________________________________ Remind-fans mailing list [email protected] https://dianne.skoll.ca/mailman/listinfo/remind-fans Remind is at https://dianne.skoll.ca/projects/remind/ _______________________________________________ Remind-fans mailing list [email protected] https://dianne.skoll.ca/mailman/listinfo/remind-fans Remind is at https://dianne.skoll.ca/projects/remind/
