first_new_moon: Dates of first visibility of the lunar crescent just after a...

In Susarro/arqastwb: Archaeoastronomy algorithms

Description

Dates of first visibility of the lunar crescent just after a solar festival (solstice, equinox or cross-quarter day)

Usage

first_new_moon(from, to, festivities = NULL,
  festival_reference = "winter solstice", geographical_latitude,
  geographical_longitude, geographical_altitude, silent = FALSE)

Arguments

from	Initial value of the interval to be searched
to	Final value of the interval to be searched
festivities	Festivities data frame obtained with festivals() function
festival_reference	Solar festival (solstice, equinox or cross-quarter day) as reference for the first new moon
geographical_latitude	Geographical latitude in degrees
geographical_longitude	Geographical longitude in degrees
geographical_altitude	Geographical altitude in meters
silent	If false a text progress bar is shown

Value

Dates of first visibility of the lunar crescent

Susarro/arqastwb documentation built on May 21, 2019, 10:28 a.m.