geocentric2topocentric: Geocentric to topocentric equatorial coordinates...

In Susarro/arqastwb: Archaeoastronomy algorithms

Description

Geocentric to topocentric equatorial coordinates transformation

Usage

geocentric2topocentric(declination, right_ascension, jd,
  geographic_longitude, geographic_latitude, geographic_altitude,
  celestial_body)

Arguments

declination	Geocentric declination in degrees
right_ascension	Geocentric right Ascension in hour angle
jd	Julian day used to determine true obliquity of ecliptic
geographic_longitude	Geographical longitude in degrees
geographic_latitude	Geographical latitude in degrees
geographic_altitude	Geographical altitude in meters
celestial_body	Celestial body name as string: mercury, venus,mars, jupyter, saturn, sun or moon

Value

Horizontal coordinates

• declination Topocentric declination in degrees

• right_ascension Topocentric right ascension in hour angle

Examples

jd<-str2jd("2003-08-28T03:17:00")
geocentric2topocentric(-15.771083,-22.63534722222,jd,-116.8625,-33.356111,1706,"mars")

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