astro::moon_phase::phase_moments Namespace Reference

Typedefs
using	RootGenerator
	A generator for one principal phase, using its signed-fold numerical convention.

Enumerations
enum class	PhaseKind : uint8_t { NEW_MOON , FIRST_QUARTER , FULL_MOON , LAST_QUARTER }
	The four principal Moon phases. More...

Functions
auto	target_angle_deg (const PhaseKind kind) -> double
	The target elongation for a given phase, in degrees.
auto	moments (const int32_t year, const PhaseKind kind) -> std::vector< double >
	Calculate the moments of a given Moon phase in a Gregorian year.

Typedef Documentation

RootGenerator

using astro::moon_phase::phase_moments::RootGenerator

A generator for one principal phase, using its signed-fold numerical convention.

Enumeration Type Documentation

PhaseKind

enum class astro::moon_phase::phase_moments::PhaseKind : uint8_t

strong

The four principal Moon phases.

Enumerator
NEW_MOON
FIRST_QUARTER
FULL_MOON
LAST_QUARTER

Function Documentation

moments()

auto astro::moon_phase::phase_moments::moments ( const int32_t year, const PhaseKind kind )->std::vector< double >

inlinenodiscard

Calculate the moments of a given Moon phase in a Gregorian year.

Parameters

year	The Gregorian year, in [1, 32766].
kind	The phase kind.

Returns

The phase moments in the year, in JDE (TT-scale ephemeris time).

Exceptions

std::invalid_argument

if year is outside [1, 32766].

Note

The year runs from Jan 1 to Jan 1 in UTC; before 1972 the bounds degrade to UT1.

A phase exactly at Jan 1 UTC has no defined owner; rounding may retain or skip it (#127).

Positions: VSOP87D (Sun) and truncated ELP2000-82B (Moon), both apparent geocentric.

target_angle_deg()

auto astro::moon_phase::phase_moments::target_angle_deg ( const PhaseKind kind ) ->double

inlinenodiscard

The target elongation for a given phase, in degrees.