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Universal Time
local time+/−zone=
Local sidereal time
UT+GST+(UTaccel)+/−(°longitude÷15)=stoLST
Direct MC
RAMCtan→÷OEcos=atan→+180
ST ratio
LST−earlier ST=÷0h m s4=storatio
Interpolating the MC or an ASC
later−earlier=×ratio=+earlier=
Latitude ratio
φ−lower latitude=÷1° ′ ″=storatio
ASC between latitudes
ASC increasesASC at the higher latitude−ASC at the lower latitude=×ratio=+ASC at the lower latitude=
ASC decreasesASC at the lower latitude−ASC at the higher latitude=×ratio=stoxASC at the lower latitude−x=
Birth-time ratio
UT÷24h m s=storatio
A planet
directnext day−day of birth=×ratio=+day of birth=
retrogradeday of birth−next day=×ratio=stoxday of birth−x=
Southern births, by the table
LST+12h m s=
Direct ASC
1.OEcos×RAMCsin=stox
2.OEsin×φtan+x=stox
3.RAMCcos±÷x=atan
4.+180
Signed values
±·longitude+360=
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