lunar month
Full moon interval
A lunar month is the time it takes for the moon to complete one cycle of phases—about 29.5 days from new moon to new moon.
This differs from calendar months, which are fixed at 28–31 days.
Some calendars, like the Islamic calendar, are based on lunar months: Ramadan begins with the sighting of the new moon.
Relating to orbital alignments
- siderealOf the stars
- anomalisticRelating to irregularity
- draconicExtremely severe or cruel
- nodalOf network vertices
perigee · apogee · elliptical · revolution · period · orbital plane · inclination · eccentricity
Coating for shine
- waningGradually decreasing in intensity
- crescentCurved sickle-like arc
- gibbousConvexly swollen shape
- first quarterMoon half-visible, growing
last quarter · illumination · moonlight · moonbeam · earthshine · terminator · limb · disc
Involving both celestial cycles
- Islamic calendarMuslim lunar year system
- Hebrew calendarLunisolar system tracking Jewish observances
- Chinese calendarLunisolar dating system from Asia
- Hindu calendarTraditional Indian timekeeping system
Ramadan · Muharram · Nisan · new year · reckoning · timekeeping
Scientific study of the moon
- mareFemale adult equine
- cratersImpact-formed depressions
- regolithFragmented covering over bedrock
- librationApparent rocking motion
eclipse · syzygy · telescope · observatory · ephemeris · conjunction · opposition · transit
Extreme tidal fluctuation
- neap tideLowest tidal range
- high tideMaximum sea level
- low tideSea at minimum level
- tidal rangeExtent of tide fluctuation
tidal force · gravitational pull · ebb · flow · tidal bulge · king tide · tidal cycle · coastal
synodic
Relating to orbital alignments
- siderealOf the stars
- anomalisticRelating to irregularity
- draconicExtremely severe or cruel
nodal · perigee · apogee · elliptical · revolution · period · orbital plane · inclination · eccentricity · apse
waxing
Coating for shine
first quarter · last quarter · illumination · moonlight · moonbeam · earthshine · terminator · limb · disc · supermoon
lunisolar
Involving both celestial cycles
- Islamic calendarMuslim lunar year system
- Hebrew calendarLunisolar system tracking Jewish observances
- Chinese calendarLunisolar dating system from Asia
Hindu calendar · Ramadan · Muharram · Nisan · new year · reckoning · timekeeping
selenology
Scientific study of the moon
libration · eclipse · syzygy · telescope · observatory · ephemeris · conjunction · opposition · transit · occultation
spring tide
Extreme tidal fluctuation
tidal range · tidal force · gravitational pull · ebb · flow · tidal bulge · king tide · tidal cycle · coastal · intertidal
- moonluna, moonlight, moonrise, moonset, moonbeam
- calendar cycleday, week, year, season, quarter
- celestial cyclessolar cycle, orbit, eclipse, solstice, equinox
- lunar cycleswaxing crescent, first quarter, waxing gibbous, last quarter, waning gibbous
- monthsJanuary, February, March, April, May
- time cyclesseasonal cycle, yearly cycle, seasons, day, solar cycle
moon, month, lunar, lunacy, lunate, lunation, lunacies, semilunar, lunar months