diff --git a/lib/astronoby.rb b/lib/astronoby.rb
index 9dfa7c8..c514a48 100644
--- a/lib/astronoby.rb
+++ b/lib/astronoby.rb
@@ -5,6 +5,8 @@
 require "astronoby/angles/dms"
 require "astronoby/angles/hms"
 require "astronoby/epoch"
+require "astronoby/astronomical_models/ephemeride_lunaire_parisienne"
+require "astronoby/bodies/moon"
 require "astronoby/bodies/sun"
 require "astronoby/coordinates/ecliptic"
 require "astronoby/coordinates/equatorial"
diff --git a/lib/astronoby/astronomical_models/ephemeride_lunaire_parisienne.rb b/lib/astronoby/astronomical_models/ephemeride_lunaire_parisienne.rb
new file mode 100644
index 0000000..4efafd3
--- /dev/null
+++ b/lib/astronoby/astronomical_models/ephemeride_lunaire_parisienne.rb
@@ -0,0 +1,143 @@
+# frozen_string_literal: true
+
+module Astronoby
+  class EphemerideLunaireParisienne
+    # Lunar theory: Éphéméride Lunaire Parisienne
+    # By Jean Chapront, Michelle Chapront-Touzé
+    # https://en.wikipedia.org/wiki/Ephemeride_Lunaire_Parisienne
+
+    DEGREES_UNIT = 10**-6
+
+    # @return [Array] Periodic terms for the Moon's longitude and distance
+    def self.periodic_terms_for_moon_longitude_and_distance
+      [
+        [0, 0, 1, 0, 6288774, -20905355],
+        [2, 0, -1, 0, 1274027, -3699111],
+        [2, 0, 0, 0, 658314, -2955968],
+        [0, 0, 2, 0, 213618, -569925],
+        [0, 1, 0, 0, -185116, 48888],
+        [0, 0, 0, 2, -114332, -3149],
+        [2, 0, -2, 0, 58793, 246158],
+        [2, -1, -1, 0, 57066, -152138],
+        [2, 0, 1, 0, 53322, -170733],
+        [2, -1, 0, 0, 45758, -204586],
+        [0, 1, -1, 0, -40923, -129620],
+        [1, 0, 0, 0, -34720, 108743],
+        [0, 1, 1, 0, -30383, 104755],
+        [2, 0, 0, -2, 15327, 10321],
+        [0, 0, 1, 2, -12528, 0],
+        [0, 0, 1, -2, 10980, 79661],
+        [4, 0, -1, 0, 10675, -34782],
+        [0, 0, 3, 0, 10034, -23210],
+        [4, 0, -2, 0, 8548, -21636],
+        [2, 1, -1, 0, -7888, 24208],
+        [2, 1, 0, 0, -6766, 30824],
+        [1, 0, -1, 0, -5163, -8379],
+        [1, 1, 0, 0, 4987, -16675],
+        [2, -1, 1, 0, 4036, -12831],
+        [2, 0, 2, 0, 3994, -10445],
+        [4, 0, 0, 0, 3861, -11650],
+        [2, 0, -3, 0, 3665, 14403],
+        [0, 1, -2, 0, -2689, -7003],
+        [2, 0, -1, 2, -2602, 0],
+        [2, -1, -2, 0, 2390, 10056],
+        [1, 0, 1, 0, -2348, 6322],
+        [2, -2, 0, 0, 2236, -9884],
+        [0, 1, 2, 0, -2120, 5751],
+        [0, 2, 0, 0, -2069, 0],
+        [2, -2, -1, 0, 2048, -4950],
+        [2, 0, 1, -2, -1773, 4130],
+        [2, 0, 0, 2, -1595, 0],
+        [4, -1, -1, 0, 1215, -3958],
+        [0, 0, 2, 2, -1110, 0],
+        [3, 0, -1, 0, -892, 3258],
+        [2, 1, 1, 0, -810, 2616],
+        [4, -1, -2, 0, 759, -1897],
+        [0, 2, -1, 0, -713, -2117],
+        [2, 2, -1, 0, -700, 2354],
+        [2, 1, -2, 0, 691, 0],
+        [2, -1, 0, -2, 596, 0],
+        [4, 0, 1, 0, 549, -1423],
+        [0, 0, 4, 0, 537, -1117],
+        [4, -1, 0, 0, 520, -1571],
+        [1, 0, -2, 0, -487, -1739],
+        [2, 1, 0, -2, -399, 0],
+        [0, 0, 2, -2, -381, -4421],
+        [1, 1, 1, 0, 351, 0],
+        [3, 0, -2, 0, -340, 0],
+        [4, 0, -3, 0, 330, 0],
+        [2, -1, 2, 0, 327, 0],
+        [0, 2, 1, 0, -323, 1165],
+        [1, 1, -1, 0, 299, 0],
+        [2, 0, 3, 0, 294, 0],
+        [2, 0, -1, -2, 0, 8752]
+      ]
+    end
+
+    # @return [Array] Periodic terms for the Moon's latitude
+    def self.periodic_terms_for_moon_latitude
+      [
+        [0, 0, 0, 1, 5128122],
+        [0, 0, 1, 1, 280602],
+        [0, 0, 1, -1, 277693],
+        [2, 0, 0, -1, 173237],
+        [2, 0, -1, 1, 55413],
+        [2, 0, -1, -1, 46271],
+        [2, 0, 0, 1, 32573],
+        [0, 0, 2, 1, 17198],
+        [2, 0, 1, -1, 9266],
+        [0, 0, 2, -1, 8822],
+        [2, -1, 0, -1, 8216],
+        [2, 0, -2, -1, 4324],
+        [2, 0, 1, 1, 4200],
+        [2, 1, 0, -1, -3359],
+        [2, -1, -1, 1, 2463],
+        [2, -1, 0, 1, 2211],
+        [2, -1, -1, -1, 2065],
+        [0, 1, -1, -1, -1870],
+        [4, 0, -1, -1, 1828],
+        [0, 1, 0, 1, -1794],
+        [0, 0, 0, 3, -1749],
+        [0, 1, -1, 1, -1565],
+        [1, 0, 0, 1, -1491],
+        [0, 1, 1, 1, -1475],
+        [0, 1, 1, -1, -1410],
+        [0, 1, 0, -1, -1344],
+        [1, 0, 0, -1, -1335],
+        [0, 0, 3, 1, 1107],
+        [4, 0, 0, -1, 1021],
+        [4, 0, -1, 1, 833],
+        [0, 0, 1, -3, 777],
+        [4, 0, -2, 1, 671],
+        [2, 0, 0, -3, 607],
+        [2, 0, 2, -1, 596],
+        [2, -1, 1, -1, 491],
+        [2, 0, -2, 1, -451],
+        [0, 0, 3, -1, 439],
+        [2, 0, 2, 1, 422],
+        [2, 0, -3, -1, 421],
+        [2, 1, -1, 1, -366],
+        [2, 1, 0, 1, -351],
+        [4, 0, 0, 1, 331],
+        [2, -1, 1, 1, 315],
+        [2, -2, 0, -1, 302],
+        [0, 0, 1, 3, -283],
+        [2, 1, 1, -1, -229],
+        [1, 1, 0, -1, 223],
+        [1, 1, 0, 1, 223],
+        [0, 1, -2, -1, -220],
+        [2, 1, -1, -1, -220],
+        [1, 0, 1, 1, -185],
+        [2, -1, -2, -1, 181],
+        [0, 1, 2, 1, -177],
+        [4, 0, -2, -1, 176],
+        [4, -1, -1, -1, 166],
+        [1, 0, 1, -1, -164],
+        [4, 0, 1, -1, 132],
+        [1, 0, -1, -1, -119],
+        [4, -1, 0, -1, 115],
+        [2, -2, 0, 1, 107]
+      ]
+    end
+  end
+end
diff --git a/lib/astronoby/bodies/moon.rb b/lib/astronoby/bodies/moon.rb
new file mode 100644
index 0000000..90684c0
--- /dev/null
+++ b/lib/astronoby/bodies/moon.rb
@@ -0,0 +1,226 @@
+# frozen_string_literal: true
+
+module Astronoby
+  class Moon
+    MEAN_GEOCENTRIC_DISTANCE = 385_000_560
+
+    def initialize(time:)
+      @time = time
+    end
+
+    # Source:
+    #  Title: Astronomical Algorithms
+    #  Author: Jean Meeus
+    #  Edition: 2nd edition
+    #  Chapter: 47 - Position of the Moon
+
+    # @return [Coordinates::Ecliptic] Ecliptic coordinates of the Moon
+    def apparent_ecliptic_coordinates
+      @ecliptic_coordinates ||= begin
+        latitude = Astronoby::Angle.from_degrees(
+          (latitude_terms + additive_latitude_terms) *
+            EphemerideLunaireParisienne::DEGREES_UNIT
+        )
+
+        longitude = mean_longitude + Astronoby::Angle.from_degrees(
+          (longitude_terms + additive_longitude_terms) *
+            EphemerideLunaireParisienne::DEGREES_UNIT
+        ) + nutation
+
+        Coordinates::Ecliptic.new(
+          latitude: latitude,
+          longitude: longitude
+        )
+      end
+    end
+
+    # @return [Integer] Distance between the Earth and the Moon centers in meters
+    def distance
+      @distance ||= (MEAN_GEOCENTRIC_DISTANCE + distance_terms).round
+    end
+
+    # @return [Angle] Moon's mean longitude
+    def mean_longitude
+      @mean_longitude ||= begin
+        degrees =
+          218.3164477 +
+          481267.88123421 * elapsed_centuries -
+          0.0015786 * elapsed_centuries**2 +
+          elapsed_centuries**3 / 538841 -
+          elapsed_centuries**4 / 65194000
+        degrees += Constants::DEGREES_PER_CIRCLE while degrees.negative?
+        Angle.from_degrees(degrees)
+      end
+    end
+
+    # @return [Angle] Moon's mean elongation
+    def mean_elongation
+      @mean_elongation ||= begin
+        degrees =
+          297.8501921 +
+          445267.1114034 * elapsed_centuries -
+          0.0018819 * elapsed_centuries**2 +
+          elapsed_centuries**3 / 545868 -
+          elapsed_centuries**4 / 113065000
+        degrees += Constants::DEGREES_PER_CIRCLE while degrees.negative?
+        Angle.from_degrees(degrees)
+      end
+    end
+
+    # @return [Angle] Moon's mean anomaly
+    def mean_anomaly
+      @mean_anomaly ||= begin
+        degrees =
+          134.9633964 +
+          477198.8675055 * elapsed_centuries +
+          0.0087414 * elapsed_centuries**2 +
+          elapsed_centuries**3 / 69699 -
+          elapsed_centuries**4 / 14712000
+        degrees += Constants::DEGREES_PER_CIRCLE while degrees.negative?
+        Angle.from_degrees(degrees)
+      end
+    end
+
+    # @return [Angle] Moon's argument of latitude
+    def argument_of_latitude
+      @argument_of_latitude ||= begin
+        degrees =
+          93.2720950 +
+          483202.0175233 * elapsed_centuries -
+          0.0036539 * elapsed_centuries**2 -
+          elapsed_centuries**3 / 3526000
+        degrees += Constants::DEGREES_PER_CIRCLE while degrees.negative?
+        Angle.from_degrees(degrees)
+      end
+    end
+
+    private
+
+    def terrestrial_time
+      @terrestrial_time ||= begin
+        delta = Util::Time.terrestrial_universal_time_delta(@time)
+        @time + delta
+      end
+    end
+
+    def julian_date
+      Epoch.from_time(terrestrial_time)
+    end
+
+    def elapsed_centuries
+      (julian_date - Epoch::DEFAULT_EPOCH) / Constants::DAYS_PER_JULIAN_CENTURY
+    end
+
+    def sun_mean_anomaly
+      @sun_mean_anomaly ||= Sun.new(time: @time).mean_anomaly
+    end
+
+    def a1
+      @a1 ||= begin
+        degrees = 119.75 + 131.849 * elapsed_centuries
+        degrees += Constants::DEGREES_PER_CIRCLE while degrees.negative?
+        Angle.from_degrees(degrees)
+      end
+    end
+
+    def a2
+      @a2 ||= begin
+        degrees = 53.09 + 479264.290 * elapsed_centuries
+        degrees += Constants::DEGREES_PER_CIRCLE while degrees.negative?
+        Angle.from_degrees(degrees)
+      end
+    end
+
+    def a3
+      @a3 ||= begin
+        degrees = 313.45 + 481266.484 * elapsed_centuries
+        degrees += Constants::DEGREES_PER_CIRCLE while degrees.negative?
+        Angle.from_degrees(degrees)
+      end
+    end
+
+    def eccentricity_correction
+      @eccentricity_correction ||=
+        1 - 0.002516 * elapsed_centuries - 0.0000074 * elapsed_centuries**2
+    end
+
+    def latitude_terms
+      @latitude_terms ||=
+        Astronoby::EphemerideLunaireParisienne
+          .periodic_terms_for_moon_latitude
+          .inject(0) do |sum, terms|
+            value = terms[4] * Math.sin(
+              terms[0] * mean_elongation.radians +
+              terms[1] * sun_mean_anomaly.radians +
+              terms[2] * mean_anomaly.radians +
+              terms[3] * argument_of_latitude.radians
+            )
+
+            value *= eccentricity_correction if terms[1].abs == 1
+            value *= eccentricity_correction**2 if terms[1].abs == 2
+
+            sum + value
+          end
+    end
+
+    def additive_latitude_terms
+      @additive_latitude_terms ||=
+        -2235 * mean_longitude.sin +
+        382 * a3.sin +
+        175 * (a1 - argument_of_latitude).sin +
+        175 * (a1 + argument_of_latitude).sin +
+        127 * (mean_longitude - mean_anomaly).sin -
+        115 * (mean_longitude + mean_anomaly).sin
+    end
+
+    def longitude_terms
+      @longitude_terms ||=
+        Astronoby::EphemerideLunaireParisienne
+          .periodic_terms_for_moon_longitude_and_distance
+          .inject(0) do |sum, terms|
+            value = terms[4] * Math.sin(
+              terms[0] * mean_elongation.radians +
+              terms[1] * sun_mean_anomaly.radians +
+              terms[2] * mean_anomaly.radians +
+              terms[3] * argument_of_latitude.radians
+            )
+
+            value *= eccentricity_correction if terms[1].abs == 1
+            value *= eccentricity_correction**2 if terms[1].abs == 2
+
+            sum + value
+          end
+    end
+
+    def additive_longitude_terms
+      @additive_longitude_terms ||=
+        3958 * a1.sin +
+        1962 * (mean_longitude - argument_of_latitude).sin +
+        318 * a2.sin
+    end
+
+    def distance_terms
+      @distance_terms ||=
+        EphemerideLunaireParisienne
+          .periodic_terms_for_moon_longitude_and_distance
+          .inject(0) do |sum, terms|
+            value = terms[5] * Math.cos(
+              terms[0] * mean_elongation.radians +
+              terms[1] * sun_mean_anomaly.radians +
+              terms[2] * mean_anomaly.radians +
+              terms[3] * argument_of_latitude.radians
+            )
+
+            value *= eccentricity_correction if terms[1].abs == 1
+            value *= eccentricity_correction**2 if terms[1].abs == 2
+
+            sum + value
+          end
+    end
+
+    def nutation
+      @nutation ||=
+        Astronoby::Nutation.for_ecliptic_longitude(epoch: julian_date)
+    end
+  end
+end
diff --git a/spec/astronoby/bodies/moon_spec.rb b/spec/astronoby/bodies/moon_spec.rb
new file mode 100644
index 0000000..af32489
--- /dev/null
+++ b/spec/astronoby/bodies/moon_spec.rb
@@ -0,0 +1,123 @@
+# frozen_string_literal: true
+
+RSpec.describe Astronoby::Moon do
+  describe "#apparent_ecliptic_coordinates" do
+    # Source:
+    #  Title: Astronomical Algorithms
+    #  Author: Jean Meeus
+    #  Edition: 2nd edition
+    #  Chapter: 47 - Position of the Moon, p.342
+    it "returns the apparent ecliptic coordinates for 1992-04-12" do
+      # Example gives 1992-04-12 00:00:00 TT (and not UTC)
+      time = Time.utc(1992, 4, 12, 0, 0, 0)
+      time -= Astronoby::Util::Time.terrestrial_universal_time_delta(time)
+      moon = described_class.new(time: time)
+
+      coordinates = moon.apparent_ecliptic_coordinates
+
+      expect(coordinates.latitude.str(:dms)).to eq "-3° 13′ 44.8543″"
+      # Result from the book: -3° 13′ 45″
+      # Result from IMCCE: -3° 13′ 44.184″
+
+      expect(coordinates.longitude.str(:dms)).to eq "+133° 10′ 1.834″"
+      # Result from the book: 133° 10′ 02″
+      # Result from IMCCE: 133° 10′ 0.157″
+    end
+
+    # Source:
+    #  Title: Celestial Calculations
+    #  Author: J. L. Lawrence
+    #  Edition: MIT Press
+    #  Chapter: 7 - The Moon, p.166
+    it "returns the apparent ecliptic coordinates for 2015-01-01" do
+      moon = described_class.new(time: Time.new(2015, 1, 1, 22, 0, 0, "-05:00"))
+
+      coordinates = moon.apparent_ecliptic_coordinates
+
+      expect(coordinates.latitude.str(:dms)).to eq "-3° 50′ 46.0007″"
+      # Result from the book: -3° 57′ 22.5179″ (-3.956255°)
+      # Result from IMCCE: -3° 50′ 55.417″
+
+      expect(coordinates.longitude.str(:dms)).to eq "+65° 21′ 5.9223″"
+      # Result from the book: +65° 3′ 35.3304″ (65.059814°)
+      # Result from IMCCE: +65° 21′ 3.629″
+    end
+
+    # Source:
+    #  Title: Celestial Calculations
+    #  Author: J. L. Lawrence
+    #  Edition: MIT Press
+    #  Chapter: 7 - The Moon, p.185
+    it "returns the apparent ecliptic coordinates for 2000-08-09" do
+      moon = described_class.new(time: Time.new(2000, 8, 9, 12, 0, 0, "-05:00"))
+
+      coordinates = moon.apparent_ecliptic_coordinates
+
+      expect(coordinates.latitude.str(:dms)).to eq "+3° 11′ 22.0683″"
+      # Result from the book: +3° 2′ 40.2″ (3.0445°)
+      # Result from IMCCE: +3° 11′ 25.819″
+
+      expect(coordinates.longitude.str(:dms)).to eq "+257° 17′ 32.7597″"
+      # Result from the book: +257° 13′ 11.784″ (257.21994°)
+      # Result from IMCCE: +257° 17′ 32.387″
+    end
+
+    # Source:
+    #  Title: Celestial Calculations
+    #  Author: J. L. Lawrence
+    #  Edition: MIT Press
+    #  Chapter: 7 - The Moon, p.185
+    it "returns the apparent ecliptic coordinates for 2010-05-15" do
+      moon = described_class.new(time: Time.new(2010, 5, 15, 14, 30, 0, "-04:00"))
+
+      coordinates = moon.apparent_ecliptic_coordinates
+
+      expect(coordinates.latitude.str(:dms)).to eq "+2° 16′ 12.4064″"
+      # Result from the book: +2° 25′ 1.7975″ (2.417166°)
+      # Result from IMCCE: +2° 16′ 15.434″
+
+      expect(coordinates.longitude.str(:dms)).to eq "+76° 35′ 31.0243″"
+      # Result from the book: +76° 24′ 58.8924″ (76.416359°)
+      # Result from IMCCE: +76° 35′ 32.198″
+    end
+
+    # Source:
+    #  Title: Practical Astronomy with your Calculator or Spreadsheet
+    #  Authors: Peter Duffett-Smith and Jonathan Zwart
+    #  Edition: Cambridge University Press
+    #  Chapter: 65 - Calculating the Moon’s position, p.165
+    it "returns the apparent ecliptic coordinates for 2003-09-01" do
+      moon = described_class.new(time: Time.utc(2003, 9, 1))
+
+      coordinates = moon.apparent_ecliptic_coordinates
+
+      expect(coordinates.latitude.str(:dms)).to eq "+1° 37′ 12.7837″"
+      # Result from the book: +1° 42′ 57.8664″ (1.716074°)
+      # Result from IMCCE: +1° 37′ 9.680″
+
+      expect(coordinates.longitude.str(:dms)).to eq "+214° 46′ 16.0171″"
+      # Result from the book: +214° 52′ 3.0107″ (214.867503°)
+      # Result from IMCCE: +214° 46′ 16.888″
+    end
+  end
+
+  describe "#distance" do
+    # Source:
+    #  Title: Astronomical Algorithms
+    #  Author: Jean Meeus
+    #  Edition: 2nd edition
+    #  Chapter: 47 - Position of the Moon, p.342
+    it "returns the distance for 1992-04-12" do
+      # Example gives 1992-04-12 00:00:00 TT (and not UTC)
+      time = Time.utc(1992, 4, 12, 0, 0, 0)
+      time -= Astronoby::Util::Time.terrestrial_universal_time_delta(time)
+      moon = described_class.new(time: time)
+
+      distance = moon.distance
+
+      expect(distance).to eq 368409707
+      # Result from the book: 368409700 (36849.7 km)
+      # Result from IMCCE: 368439405 (0.002462865305 AU)
+    end
+  end
+end