Sky Calendar — Moon Phases & Retrogrades
A real, computed calendar of the sky's own next 30 days — every upcoming Moon phase and every planet currently or about to be retrograde, with genuine calculated dates rather than an approximate seasonal guide. Useful as a quick reference for anyone tracking real current astrological weather without pulling up a full chart.
Each entry links back to what that event traditionally means — a Full Moon's release-and-culmination themes, a New Moon's fresh-start themes, or a specific planet's retrograde period and what it traditionally asks you to revisit — so the calendar doubles as a quick plain-language reference, not just a bare list of dates.
Frequently Asked Questions
How are the New Moon and Full Moon dates on this calendar actually calculated?
By scanning the real computed Sun-Moon phase angle forward in daily steps and locating each zero-crossing — 0° for New Moon, 180° for Full Moon — then narrowing that window to sub-minute precision.
How does this tool know when a planet is retrograde?
It steps forward day by day through the same real planetary-position calculation used everywhere else on the site and records the start and end of every continuous retrograde window for Mercury through Pluto.
What does 'Moon void of course' mean?
It's the traditional window between the Moon's last classical aspect (to the Sun, Mercury, Venus, Mars, Jupiter, or Saturn) and the moment it enters the next sign — traditionally read as a poor window to start something new.
How often does Mercury retrograde happen?
Roughly three to four times a year — more often than any other retrograde tracked here, which is part of why it gets so much attention.
Can I add these Moon phases and retrogrades to my own calendar app?
Yes — the Export to Calendar button downloads a standard .ics file ready to import into Google Calendar, Outlook, Apple Calendar, or any other app that reads .ics files.