skyscapeR.vars {skyscapeR}

See and change the global variables used by skyscapeR

Description

See and change the global variables used by skyscapeR

Usage

skyscapeR.vars(timezone, calendar, refraction, atm, temp, dec)

Arguments

timezone

Timezone of input either as a known acronym (e.g. "GMT", "CET") or a string with continent followed by country capital (e.g. "Europe/London"). See timezones for details. Default is the system timezone

calendar

Calendar used in parameter time. G for gregorian and J for julian. Defaults to Gregorian.

refraction

Whether atmospheric refraction is to be taken into account. Default is TRUE.

atm

Atmospheric pressure for refraction calculation. Default is 1013.25 mbar.

temp

Atmospheric temperature for refraction calculation. Default is 15 degrees.

dec

Output declination: geo for the geocentric, or topo for the topocentric frame of reference. Defaults to topocentric.

Examples

# Julian date at noon GMT on Christmas day 2018
time2jd('2018-12-25 12:00:00', 'GMT')