Moon phases, ephemeris, and sun/planet positions for the Fe₂O₃ Rust terminal suite. Shared by nova (astronomy panel) and tock (calendar).

Planet calculations are ported from ruby-ephemeris.

Install

[dependencies]
orbit = { version = "0.1", package = "fe2o3-orbit" }

Highlights

• moon_phase(y, m, d) → illumination, phase name, symbol, phase index
• moon_times(y, m, d, lat, lon, tz) → rise / set
• sun_times(y, m, d, lat, lon, tz) → sunrise / sunset
• visible_planets(y, m, d, lat, lon, tz) → planets above 5° between 20:00–04:00
• all_bodies(y, m, d, lat, lon, tz) → ephemeris rows for sun/moon/planets
• astro_events(m, d), astro_events_for_year(y, m, d) → meteor showers, equinoxes, etc.
• tonight_summary(y, m, d, lat, lon, tz, bortle) → human-readable nightly summary
• notable_phase(y, m, d), notable_phases_in_month(y, m) → quarter / new / full markers
• Display helpers: body_symbol, body_color_hex, body_color_256, moon_phase_gray

License

Public domain (Unlicense).