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Great American Eclipse 2017

On August 21, 2017, darkness will sweep across the land. Far from an ill omen, these two minutes will offer Americans an astronomical gift like no other — a total solar eclipse. The Moon's shadow will race across the continental United States from Oregon to South Carolina, earning this event its nickname as the Great American Eclipse. You'll want to be prepared for this extraordinary event, so keep up-to-date here on how to plan for eclipse day, everything you need to know about the Sun and eclipses, and all the best tools and equipment, from state-of-the-art solar filters and telescopes to do-it-yourself pinhole cameras.

Great American Eclipse Path
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LEARN THE BASICS

What to know

25 facts you should know about the August 21, 2017, total solar eclipse.

Take our advice

Two dozen tips for the August 21, 2017, total solar eclipse.

Solar eclipse glossary

All the vocab you need to know to follow solar observing for the 2017 eclipse.

First look at the 2017 eclipse

Get excited for the first total solar eclipse in the United States in 26 years.

Start observing the Sun

What's the best and cheapest way to get into solar observing?

HELPFUL PRODUCTS

Looking for something beyond the naked eye?
Astronomy reviews solar telescopes, filters, and more to help you make the most of your eclipse experience.

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Solarscope sun viewer

Setting up this simple solar viewer is a breeze, and nothing could be better for a crowd of kids.

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Orion Safety Film solar filters

Safely observe sunspots, eclipses, and planetary transits through your telescope as if it were built for solar observing.

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Daystar's Quark filter

Ease of use, extreme portability, and a great price make this Hydrogen-alpha solar filter one to consider.

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DayStar's Quantum solar filter

With a total solar eclipse on the horizon, now may be the time to invest in a Hydrogen-alpha filter.

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Coronado’s SolarMax II telescope

This compact Hydrogen-alpha scope will enhance your observing as the solar eclipse approaches.

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Coronado Personal
Solar Telescope

Observing the Sun through hydrogen-alpha filters just got easier.

VIDEO HIGHLIGHT:
How to safely observe the Sun

Double your observing fun with a few accessories that allow
you to safely study our stellar neighbor.

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Astronomy 101: The Sun

In this video, learn about the seemingly extraordinary qualities that make the Sun just an average star.

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The Real Reality Show:
How the Sun Will Die

A sheepish special guest helps Editor Dave Eicher explain our star's fate.

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Solar storm near miss

A fierce magnetic storm in 2012 barely missed Earth, but put on a spectacular show for the cameras.

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Tour the solar system: The Sun

Bill Andrews explains the characteristics of our home star and the methods scientists are using to study it.

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Solar storms imitate supernovae

The Sun’s coronal mass ejections exhibit the same finger-like structures as those observed in the Crab Nebula.

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Solar filter basics

Learn how to spot granulation and track sunspots on our home star with an underappreciated telescope accessory.

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SDO Year 4

The solar dynamics observatory watches the Sun nonstop at 10 different wavelengths.

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Telescopes tag-team on flares

This type of research can help scientists better understand what catalyst sets off large explosions on the Sun.

MORE ON SOLAR ECLIPSES FROM ASTRONOMY MAGAZINE