| moon | R Documentation | 
Insert Moon Phase Emoji
moon(date, day = day_in_synodic_cycle(date))
date | 
 a date  | 
day | 
 number of days since new moon  | 
This function is vectorized.
If not supplied, day is calculated using the
approximation of day_in_synodic_cycle, i.e the number of
days since a known new moon modulo 29.530588853 days.
a moon emoji
moon(Sys.Date())
january <- as.Date("2021-01-01") + 0:30
moon(january)
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