is.solar_time

is.solar_date

Compute the position of the sun, and local solar time using Meeus'
formulae. Compute day and/or night length using different
twilight definitions or arbitrary sun elevation angles. This package is
part of the 'r4photobiology' suite, Aphalo, P. J. (2015)
<doi:10.19232/uv4pb.2015.1.14>. Algorithms from Meeus (1998, ISBN:0943396611).

Pedro Aphalo

SunCalcMeeus

Sun Position and Daylight Calculations

Pedro J. Aphalo

is.solar_time function

<dl><dt>x</dt>
<dd>an R object.</dd></dl>

Arguments

Query class — is.solar_time

<dl>

<dt>x</dt>
<dd>an R object.</dd>

</dl>

is.solar_time: Query class

Description

Usage

Value

Arguments

See Also