Look up, know what's up

SkyDeck publishes monthly moon-phase calendars and stargazing guides for backyard astronomers, astrophotographers and the simply night-sky-curious — with every date computed or verified against official sources, and every meteor peak cited. No guesswork under your sky.

The moon-phase calculator

Pick any date and get the phase name, illumination, moon age and next full/new moon — computed in your browser.

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Look up any night, past or future

Dates for phase events come from a Meeus-chapter-49 engine validated against the US Naval Observatory's published table: all 25 primary phases from October 2026 to March 2027 matched within 2 minutes.

Open the calculator →