Astronomy Central

Sun
Sunrise & Sunset Times
Day Light Map
Day and Night World Map

Where is the Sun directly overhead right now?

Skyline at twilight with lights reflecting on the water.
Twilight, Dawn, and Dusk

What are the three stages of twilight?

Diagram showing the distance between the Sun and Earth at different times of the year (perihelion and aphelion).
Perihelion and Aphelion

When is Earth nearest and farthest from the Sun?

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Read more about the Sun

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Moon
Moonrise & Moonset Times
Moon Phases in Your City
Moon Light Map
Moon Light World Map

Where is the Moon visible right now?

Illustration showing the Moon orbiting Earth in Space.
Moon Phases Visualized

What are the positions of Earth and the Moon right now?

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Read more about the Moon

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Solar & Lunar Eclipses
Eclipse Lookup
Feb 17, 2026: Annular solar eclipse
Mar 2–3, 2026: Total lunar eclipse
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All Eclipses and Planet Transits Worldwide

Eclipses and transits from 1900 to 2199.

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Upcoming Live Streams

Watch LIVE coverage of our solar and lunar eclipses.

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Read more about eclipses

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Illustration of night sky with stars and a crescent moon.
Earth & Space Library

From Apogee to Zodiacal light, browse our astronomy articles.

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Astronomy News

Keep up with events in the sky and space.

Illustration of night sky with stars and a crescent moon.
Astro Events 2025

Notable dates for skywatchers and stargazers.

Equinoxes & Solstices
Astronomical Season Calculator
Blooming crocuses are a symbol of spring.
Spring Equinox

The start of spring—also called the vernal equinox.

The sun is shining bright on the blue sky.
Summer Solstice

The start of summer, and the longest day of the year.

Falling autumn leaves on a blue background.
Fall Equinox

The start of fall/autumn—also called the autumnal equinox.

Snowflake on blue background.
Winter Solstice

The start of winter, and the shortest day of the year.

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Read more about the seasons

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Meteors, Comets & Asteroids
Illustration of a meteor shower
Meteor Showers

Calendars, animations, and tips for catching shooting stars.

Illustration of two people watching a bright comet streaking across a starry night sky over a mountainous landscape.
Comets

What is a comet?

Black and white image of an asteroid floating in space, with a starry background.
Asteroids

What is an asteroid?

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Read more about meteors

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Night Sky & Planets
Night Sky Lookup
Illustration of a night sky with visible constellations outlined above a dark horizon at twilight.
The Sky Tonight

Find and track the Sun, Moon, planets, and stars.

Illustration of a distance arrow between a planet and Earth
Planet Distance & Brightness

Which planet is closest to Earth right now?

Illustration of the solar system showing planets in order from the Sun to Saturn.
Planet Sizes & Order

Which are the biggest and smallest planets?

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Astronomical Glossary

Know your albedo from your antumbra.

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Read more about the planets

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Our Solar System
Telescope view of the Sun from Earth.
The Sun

Our Home Star

Planet Mercury in detail
Mercury

The Iron Planet

Venus captured by NASA's Mariner 10 spacecraft
Venus

Our Twin Planet

A view of the Earth in space.
Earth

Our Living Planet

The Moon (just after Full Moon).
The Moon

Our Satellite

A view of the planet Mars.
Mars

The Red Planet

3D rendered image of Jupiter.
Jupiter

The Massive Planet

3d render of the planet Saturn
Saturn

The Ringed Planet

A close-up of Uranus, taken by the Voyager 2 spacecraft in January 1986.
Uranus

The Sideways Planet

Image of Neptune against a black background.
Neptune

The Farthest Planet