eq | R Documentation |
This function calculates the declination of the sun at the astronomical equinox with corrected average parallax.
eq(loc = FALSE, parallax = 0.00224, altitude = 0, verbose = TRUE)
loc |
(Optional) This can be either the latitude of the location, or a skyscapeR.horizon object. If missing or FALSE, function will output geocentric declination. |
parallax |
(Optional) Average parallax value for the sun. Defaults to 0.00224. |
altitude |
(Optional) Altitude of the sun. Defaults to 0 degrees. |
verbose |
(Optional) Boolean to control output of warnings and messages. Defaults to TRUE. |
obliquity
, jS
, eq
,
zenith
, antizenith
, spatial.equinox
, parallax.corr
# Equinoctial geocentric declination:
eq()
# Topocentric declination for same year and latitude of 50 degrees N:
eq(loc=50)
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