Now you can blame Mercury in advance

Orbit

Calendar

A free astrology calendar subscription feed that turns the ephemeris into calendar entries, so the sky sits alongside your appointments instead of in a separate app. You can add it to your favorite calendar app, such as Apple iCal or Google Calendar. Take the All Orbits option to have them all in one. Or get individual calendars so you can switch any one of them on and off independently: Moon phases, void-of-course Moon, sign ingresses + stations, and exact planetary aspects.

Tropical zodiac. Exact times, shown in your own time zone. Currently covers 2026 through 2029 and will be extended each year. Free to use, with no account or sign-up.

Scroll
01

All Orbits

01Every phase, every void, every ingress, every aspect, all in one calendar.

All our astrology feeds in a single calendar: Moon phases, void-of-course Moon, ingresses + stations, and all planetary aspects. One subscription, one color in your calendar of choice.

Subscribe Download .ics
02

Moon Phases

02New, first quarter, full, last quarter to the minute. Plus eclipses.

Follow the Moon’s phases to the exact moment, including the solar and lunar eclipses too.

Subscribe Download .ics
03

Void Moons

03When the Moon goes quiet, you’ll know exactly how long.

A void-of-course Moon is the stretch between the Moon’s last major aspect in a sign and the moment it enters the next one. Each calendar entry marks the moment the void begins, and a note inside the entry says how long it will last.

Subscribe Download .ics
04

Ingresses + Stations

04Planets change signs. Planets stand still. Planets retrograde. Now it’s on your calendar.

The Moon and every planetary body entering a new sign, plus every retrograde and station.

Subscribe Download .ics
05

Aspects

05When Mars squares Saturn at 3:14am, you’ll get the invite.

Exact conjunctions, oppositions, squares, trines, and sextiles between the Sun, Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto. Each entry spells it out in plain language.

Subscribe Download .ics
06

Subscribe

Subscribing is free and keeps the calendar current as new years are added. Downloading gives you a one-time import that never updates.

Apple iCal

  1. Click Subscribe on any feed above. Calendar opens and asks to confirm.
  2. Set auto-refresh to daily or weekly. Works on Mac, iPhone, and iPad.

Google Calendar

  1. Right-click Subscribe and copy the link. Change webcal:// to https://.
  2. On the web, open Other calendars → + → From URL, paste, and click Add calendar.
07

About

07An ephemeris in the one app you actually open every day: your calendar.

Orbit Calendar is a free service that turns the ephemeris into astrology calendar entries in plain language, so the sky sits alongside your appointments instead of in a separate app. Positions are calculated from NASA JPL’s DE440 planetary ephemeris, the same data NASA’s Jet Propulsion Laboratory uses to navigate spacecraft. Tropical zodiac, geocentric. Every time is stored in UTC, so your calendar shows it in whatever time zone you are in, even if you travel. Aspects are the five major ones. Because the Moon makes several aspects each day, its aspects are used only to compute void periods, so as not to clutter your calendar.