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Your guide to the sky

Planetary Events.

Close encounters on the sky’s stage. Follow conjunctions, oppositions and elongations, and learn what each one means for an evening outside.

Plan ahead

Upcoming planetary events

Read the field guide ↓

The next 400 days in the available catalog. Event pages explain local visibility and prediction uncertainty.

Catalog refreshed . Dates and predictions come from the catalog used by Forecast Bar, with a source on every event.

Calendar day groupings use UTC. Event times adapt to your device’s time zone when JavaScript is available. Exact local visibility and weather can differ from the global catalog timing.

A little context. A better view.

Planetary Events: a field guide

Conjunctions are apparent meetings

Two objects can look close together from Earth while remaining far apart in space. Angular separation describes their apparent spacing, not their physical distance.

Opposition favors outer planets

An outer planet at opposition lies opposite the Sun in our sky. It is generally well placed during the night; its altitude and your weather still shape the observing opportunity.

Elongation measures distance from the Sun in the sky

Greatest elongation can make Mercury or Venus easier to find in the evening or morning. A low horizon and local twilight conditions are important, even when the separation is large.

A catalog event is not always observable

Some conjunctions occur close to the Sun. The event page preserves that distinction. Never sweep near the Sun with binoculars or a telescope to find a planet.

Recently in the sky

Past events, preserved for reference.

Take the sky with you

From a date on a calendar
to a night worth remembering.

Open the astronomy calendar in Forecast Bar to explore events alongside your local weather and astronomy alert settings.

An illustrated night landscape unfolding from a little book.
A little wonder. Wherever you go.