skyscapeR (version 1.0.0)

findTargets: Find celestial targets within declination and time ranges

Description

Find celestial targets within declination and time ranges

Usage

findTargets(
  decrange,
  timerange,
  max.mag = 2.5,
  loc = FALSE,
  calendar = skyscapeR.env$calendar
)

Arguments

decrange

Range of declination to consider.

timerange

Temporal range to consider

max.mag

(Optional) Maximum magnitude of stars to consider. Defaults to 2.5

loc

Location, either a skyscapeR.object or a vector containing the latitude, longitude and elevation of location, in this order. Defaults to FALSE, thus checking only geocentric declination.

calendar

(Optional) Calendar used in parameter time. G for gregorian and J for julian. If not given the value set by skyscapeR.vars will be used instead.

Examples

# NOT RUN {
findTargets(c(-25,-17.5), c(-2500,-1750))

# if a location is given then the zenith and anti-zenith sun will also be looked at:
findTargets(c(3,12), c(-2500,-1750), loc=c(8.6, 7.3, 200))

# if a horizon profile is given then the spatial equinox will also be looked at:
hor <- downloadHWT('J657KVEV')
findTargets(c(-7,2), c(-2500,-1750), loc=hor)
# }