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Sky events calendar

Source-reviewed observing guides. Dates use UTC calendar windows. Exact local visibility depends on your site. The catalog is maintained editorially.

Field calendar

Conjunction · Upcoming

Mars meets Jupiter

Mars and Jupiter pass about 1.2 degrees apart in apparent direction. Their proximity is a line-of-sight effect.

Meteor shower · Upcoming

The Geminids

Earth passes through debris associated with asteroid 3200 Phaethon. The estimated peak night is December 13–14.

Season · Upcoming

December solstice

The Sun reaches its southernmost declination of the year. This marks astronomical summer in the south and winter in the north.

Solar eclipse · Upcoming

A ring of sunlight

The apparent lunar disk is smaller than the Sun and leaves an annulus along a narrow track.

Lunar eclipse · Upcoming

Moon in Earth’s outer shadow

The Moon passes through the penumbra, where Earth blocks only part of the sunlight. Shading can be subtle.

Solar eclipse · Upcoming

The August total solar eclipse

The Moon’s umbra follows a narrow track across parts of southern Europe, northern Africa and the Middle East.