29.53 days ވަކުވެ phases cycle — invisible new moon brilliant full moon. phases agriculture navigation calendars guided thousands years. moon phase calendar phases track precise times astronomical algorithms.
ވަކުވެ ފަސް ކި
ވަކުވެ light produce — sunlight reflect. ވަކުވެ ދިވެހި orbit different portions sunlit side face phases cycle.
any moment exactly half ވަކުވެ illuminated (sun face). phases observe sun dunia moon angle depend. ވަކުވެ dunia sun between dark side — new moon. dunia moon sun between fully illuminated side — full moon.
8 phases lunar cycle
new moon — ވަކުވެ dunia sun between. illuminated side dunia from invisible (0% illumination). synodic cycle day 0.
waxing crescent — light thin sliver ވަކުވެ right side appear (northern hemisphere). illumination 0% kɔ 50% grow. crescent moon sunset after visible.
first quarter — ވަކުވެ visible face half exactly illuminated (50%). "quarter" name despite half appear — "first quarter" cycle quarter.
waxing gibbous — ވަކުވެ half more illuminated full toward. "gibbous" latin "hump" word.
full moon — ވަކުވެ visible face entire illuminated (100%). ވަކުވެ sunset rise sunrise set night long visible. cycle day 14.8 kɔnɛ occur.
waning gibbous — illumination full from decrease start. lit portion right side from shrink.
last quarter — ވަކުވެ half illuminated again (50%) opposite first quarter. cycle three-quarter kɔ.
waning crescent — thin sliver remain early morning sky sunrise visible. cycle next new moon reset.
synodic month
complete cycle phases — new moon next new moon — synodic month ~29.53 days (29 days 12 hours 44 miniti). sidereal month (27.32 days) different ވަކުވެ ދިވެހި star kɔ orbit.
synodic month longer ވަކުވެ dunia orbit sun orbit kɔ move. ވަކުވެ ~2.2 days "catch up" sun-dunia-moon angle same return.
moon phases ak tides
ވަކުވެ phase ދިވެހި tides directly affect. new moons ak full moons sun moon aligned gravity pulls combine spring tides larger tidal ranges create. quarter phases sun moon right angles partially pull cancel neap tides smaller tidal ranges create.
gravity interaction ވަކުވެ ދିވެހި from slowly move — ~3.8 cm year — ދިވެහި rotation gradually slow.
tracking moon phases
moon phase calendar ވާ meeus astronomical algorithm precise phase times calculate. daily illumination percentages major phase events exact times lunar day. deeper calculation method understanding how lunar time is calculated see.