Functions
qtty::Radian	altitude_at (const Geodetic &obs, const Time< TT, MJD > &mjd)
	Compute the Moon's altitude (radians) at a given Time<TT, MJD> instant.

std::vector< Period< TT, MJD > >	above_threshold (const Geodetic &obs, const Period< TT, MJD > &window, qtty::Degree threshold, const SearchOptions &opts={})
	Find periods when the Moon is above a threshold altitude.

std::vector< Period< TT, MJD > >	below_threshold (const Geodetic &obs, const Period< TT, MJD > &window, qtty::Degree threshold, const SearchOptions &opts={})
	Find periods when the Moon is below a threshold altitude.

std::vector< CrossingEvent >	crossings (const Geodetic &obs, const Period< TT, MJD > &window, qtty::Degree threshold, const SearchOptions &opts={})
	Find threshold-crossing events for the Moon.

std::vector< CulminationEvent >	culminations (const Geodetic &obs, const Period< TT, MJD > &window, const SearchOptions &opts={})
	Find culmination events for the Moon.

std::vector< Period< TT, MJD > >	altitude_ranges (const Geodetic &obs, const Period< TT, MJD > &window, qtty::Degree min_alt, qtty::Degree max_alt, const SearchOptions &opts={})
	Find periods when the Moon's altitude is within [min, max].

qtty::Degree	azimuth_at (const Geodetic &obs, const Time< TT, MJD > &mjd)
	Compute the Moon's azimuth (degrees, N-clockwise) at a given Time<TT, MJD> instant.

std::vector< AzimuthCrossingEvent >	azimuth_crossings (const Geodetic &obs, const Period< TT, MJD > &window, qtty::Degree bearing, const SearchOptions &opts={})
	Find epochs when the Moon crosses a given bearing.

std::vector< AzimuthExtremum >	azimuth_extrema (const Geodetic &obs, const Period< TT, MJD > &window, const SearchOptions &opts={})
	Find azimuth extrema (northernmost / southernmost) for the Moon.

std::vector< Period< TT, MJD > >	in_azimuth_range (const Geodetic &obs, const Period< TT, MJD > &window, qtty::Degree min_bearing, qtty::Degree max_bearing, const SearchOptions &opts={})
	Find periods when the Moon's azimuth is within [min_bearing, max_bearing].

std::vector< Period< TT, MJD > >	outside_azimuth_range (const Geodetic &obs, const Period< TT, MJD > &window, qtty::Degree min_bearing, qtty::Degree max_bearing, const SearchOptions &opts={})
	Find periods when the Moon's azimuth is outside [min_bearing, max_bearing].

MoonPhaseGeometry	phase_geocentric (const Time< TT, JD > &jd)
	Compute geocentric Moon phase geometry at a Julian Date.

MoonPhaseGeometry	phase_topocentric (const Time< TT, JD > &jd, const Geodetic &site)
	Compute topocentric Moon phase geometry at a Julian Date.

MoonPhaseLabel	phase_label (const MoonPhaseGeometry &geom)
	Determine the descriptive phase label for a given geometry.

std::vector< PhaseEvent >	find_phase_events (const Period< TT, MJD > &window, const SearchOptions &opts={})
	Find principal phase events (new moon, quarters, full moon) in a window.

std::vector< Period< TT, MJD > >	illumination_above (const Period< TT, MJD > &window, double k_min, const SearchOptions &opts={})
	Find periods when illuminated fraction is ≥ k_min.

std::vector< Period< TT, MJD > >	illumination_below (const Period< TT, MJD > &window, double k_max, const SearchOptions &opts={})
	Find periods when illuminated fraction is ≤ k_max.

std::vector< Period< TT, MJD > >	illumination_range (const Period< TT, MJD > &window, double k_min, double k_max, const SearchOptions &opts={})
	Find periods when illuminated fraction is within [k_min, k_max].

Function Documentation

◆ above_threshold()

std::vector< Period< TT, MJD > > siderust::moon::above_threshold	(	const Geodetic &	obs,
		const Period< TT, MJD > &	window,
		qtty::Degree	threshold,
		const SearchOptions &	opts = `{}`
	)

inline

Find periods when the Moon is above a threshold altitude.

Definition at line 225 of file altitude.hpp.

◆ altitude_at()

qtty::Radian siderust::moon::altitude_at	(	const Geodetic &	obs,
		const Time< TT, MJD > &	mjd
	)

inline

Compute the Moon's altitude (radians) at a given Time<TT, MJD> instant.

Definition at line 214 of file altitude.hpp.

References siderust::check_status(), siderust::detail::make_body_subject(), and siderust::Geodetic::to_c().

◆ altitude_ranges()

std::vector< Period< TT, MJD > > siderust::moon::altitude_ranges	(	const Geodetic &	obs,
		const Period< TT, MJD > &	window,
		qtty::Degree	min_alt,
		qtty::Degree	max_alt,
		const SearchOptions &	opts = `{}`
	)

inline

Find periods when the Moon's altitude is within [min, max].

Definition at line 284 of file altitude.hpp.

◆ azimuth_at()

qtty::Degree siderust::moon::azimuth_at	(	const Geodetic &	obs,
		const Time< TT, MJD > &	mjd
	)

inline

Compute the Moon's azimuth (degrees, N-clockwise) at a given Time<TT, MJD> instant.

Definition at line 190 of file azimuth.hpp.

References siderust::check_status(), siderust::detail::make_body_subject(), and siderust::Geodetic::to_c().

◆ azimuth_crossings()

std::vector< AzimuthCrossingEvent > siderust::moon::azimuth_crossings	(	const Geodetic &	obs,
		const Period< TT, MJD > &	window,
		qtty::Degree	bearing,
		const SearchOptions &	opts = `{}`
	)

inline

Find epochs when the Moon crosses a given bearing.

Definition at line 201 of file azimuth.hpp.

◆ azimuth_extrema()

std::vector< AzimuthExtremum > siderust::moon::azimuth_extrema	(	const Geodetic &	obs,
		const Period< TT, MJD > &	window,
		const SearchOptions &	opts = `{}`
	)

inline

Find azimuth extrema (northernmost / southernmost) for the Moon.

Definition at line 217 of file azimuth.hpp.

◆ below_threshold()

std::vector< Period< TT, MJD > > siderust::moon::below_threshold	(	const Geodetic &	obs,
		const Period< TT, MJD > &	window,
		qtty::Degree	threshold,
		const SearchOptions &	opts = `{}`
	)

inline

Find periods when the Moon is below a threshold altitude.

Definition at line 241 of file altitude.hpp.

◆ crossings()

std::vector< CrossingEvent > siderust::moon::crossings	(	const Geodetic &	obs,
		const Period< TT, MJD > &	window,
		qtty::Degree	threshold,
		const SearchOptions &	opts = `{}`
	)

inline

Find threshold-crossing events for the Moon.

Definition at line 257 of file altitude.hpp.

◆ culminations()

std::vector< CulminationEvent > siderust::moon::culminations	(	const Geodetic &	obs,
		const Period< TT, MJD > &	window,
		const SearchOptions &	opts = `{}`
	)

inline

Find culmination events for the Moon.

Definition at line 272 of file altitude.hpp.

◆ find_phase_events()

std::vector< PhaseEvent > siderust::moon::find_phase_events	(	const Period< TT, MJD > &	window,
		const SearchOptions &	opts = `{}`
	)

inline

Find principal phase events (new moon, quarters, full moon) in a window.

Parameters

window	Time<TT, MJD> search window.
opts	Search tolerances (optional).

Definition at line 164 of file lunar_phase.hpp.

◆ illumination_above()

std::vector< Period< TT, MJD > > siderust::moon::illumination_above	(	const Period< TT, MJD > &	window,
		double	k_min,
		const SearchOptions &	opts = `{}`
	)

inline

Find periods when illuminated fraction is ≥ k_min.

Parameters

window	Time<TT, MJD> search window.
k_min	Minimum illuminated fraction in [0, 1].
opts	Search tolerances (optional).

Definition at line 180 of file lunar_phase.hpp.

◆ illumination_below()

std::vector< Period< TT, MJD > > siderust::moon::illumination_below	(	const Period< TT, MJD > &	window,
		double	k_max,
		const SearchOptions &	opts = `{}`
	)

inline

Find periods when illuminated fraction is ≤ k_max.

Parameters

window	Time<TT, MJD> search window.
k_max	Maximum illuminated fraction in [0, 1].
opts	Search tolerances (optional).

Definition at line 196 of file lunar_phase.hpp.

◆ illumination_range()

std::vector< Period< TT, MJD > > siderust::moon::illumination_range	(	const Period< TT, MJD > &	window,
		double	k_min,
		double	k_max,
		const SearchOptions &	opts = `{}`
	)

inline

Find periods when illuminated fraction is within [k_min, k_max].

Parameters

window	Time<TT, MJD> search window.
k_min	Minimum illuminated fraction in [0, 1].
k_max	Maximum illuminated fraction in [0, 1].
opts	Search tolerances (optional).

Definition at line 213 of file lunar_phase.hpp.

◆ in_azimuth_range()

std::vector< Period< TT, MJD > > siderust::moon::in_azimuth_range	(	const Geodetic &	obs,
		const Period< TT, MJD > &	window,
		qtty::Degree	min_bearing,
		qtty::Degree	max_bearing,
		const SearchOptions &	opts = `{}`
	)

inline

Find periods when the Moon's azimuth is within [min_bearing, max_bearing].

Definition at line 233 of file azimuth.hpp.

◆ outside_azimuth_range()

std::vector< Period< TT, MJD > > siderust::moon::outside_azimuth_range	(	const Geodetic &	obs,
		const Period< TT, MJD > &	window,
		qtty::Degree	min_bearing,
		qtty::Degree	max_bearing,
		const SearchOptions &	opts = `{}`
	)

inline

Find periods when the Moon's azimuth is outside [min_bearing, max_bearing].

Definition at line 249 of file azimuth.hpp.

◆ phase_geocentric()

MoonPhaseGeometry siderust::moon::phase_geocentric ( const Time< TT, JD > & jd )

inline

Compute geocentric Moon phase geometry at a Julian Date.

Parameters

jd	Julian Date (e.g. `siderust::Time<TT, JD>(2451545.0)` for J2000.0).

Definition at line 124 of file lunar_phase.hpp.

References siderust::check_status(), and siderust::MoonPhaseGeometry::from_c().

◆ phase_label()

MoonPhaseLabel siderust::moon::phase_label ( const MoonPhaseGeometry & geom )

inline

Determine the descriptive phase label for a given geometry.

Parameters

geom	Moon phase geometry (as returned by phase_geocentric / phase_topocentric).

Definition at line 149 of file lunar_phase.hpp.

References siderust::check_status(), siderust::MoonPhaseGeometry::elongation, siderust::MoonPhaseGeometry::illuminated_fraction, siderust::MoonPhaseGeometry::phase_angle, and siderust::MoonPhaseGeometry::waxing.

◆ phase_topocentric()

MoonPhaseGeometry siderust::moon::phase_topocentric	(	const Time< TT, JD > &	jd,
		const Geodetic &	site
	)

inline

Compute topocentric Moon phase geometry at a Julian Date.

Parameters

jd	Julian Date.
site	Observer geodetic coordinates.

Definition at line 136 of file lunar_phase.hpp.

References siderust::check_status(), siderust::MoonPhaseGeometry::from_c(), and siderust::Geodetic::to_c().

Functions

Function Documentation

◆ above_threshold()

◆ altitude_at()

◆ altitude_ranges()

◆ azimuth_at()

◆ azimuth_crossings()

◆ azimuth_extrema()

◆ below_threshold()

◆ crossings()

◆ culminations()

◆ find_phase_events()

◆ illumination_above()

◆ illumination_below()

◆ illumination_range()

◆ in_azimuth_range()

◆ outside_azimuth_range()

◆ phase_geocentric()

◆ phase_label()

◆ phase_topocentric()