Class: Astronoby::Coordinates::Ecliptic

Inherits:
Object
  • Object
show all
Defined in:
lib/astronoby/coordinates/ecliptic.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(latitude:, longitude:) ⇒ Ecliptic

Returns a new instance of Ecliptic.



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# File 'lib/astronoby/coordinates/ecliptic.rb', line 8

def initialize(latitude:, longitude:)
  @latitude = latitude
  @longitude = longitude
end

Instance Attribute Details

#latitude ⇒ Object (readonly)

Returns the value of attribute latitude.



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# File 'lib/astronoby/coordinates/ecliptic.rb', line 6

def latitude
  @latitude
end

#longitude ⇒ Object (readonly)

Returns the value of attribute longitude.



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# File 'lib/astronoby/coordinates/ecliptic.rb', line 6

def longitude
  @longitude
end

Instance Method Details

#to_apparent_equatorial(epoch:) ⇒ Object 



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# File 'lib/astronoby/coordinates/ecliptic.rb', line 24

def to_apparent_equatorial(epoch:)
  apparent_obliquity = TrueObliquity.for_epoch(epoch)
  to_equatorial(obliquity: apparent_obliquity, epoch: epoch)
end

#to_true_equatorial(epoch:) ⇒ Object

Source:

Title: Celestial Calculations
Author: J. L. Lawrence
Edition: MIT Press
Chapter: 4 - Orbits and Coordinate Systems



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# File 'lib/astronoby/coordinates/ecliptic.rb', line 19

def to_true_equatorial(epoch:)
  mean_obliquity = MeanObliquity.for_epoch(epoch)
  to_equatorial(obliquity: mean_obliquity, epoch: epoch)
end