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IC 418 planetary nebula

Night Sky Sights

A Deep-sky Hippity-hop through Lepus, the Hare

Snare a dozen bright double stars and deep-sky objects in the celestial Hare the next clear night. We also provide details on how to watch the potentially hazardous asteroid Apophis occult a star the night of February 21st.

Daytime planet fest

Solar System

Planets and Comets Can't Hide from SOHO's Eye

With the help of the Solar Heliospheric Observatory you can not only keep track of the planets in the daytime sky but maybe even discover a comet.

Castor and Pollux

Night Sky Sights

Meet Castor, Six Stars in One

Castor, a prime ornament of the Gemini constellation and one of the brightest stars in the sky, is actually a system of stars with six unique members.

Total lunar eclipse path on May 26, 2021

Celestial Objects to Observe

Solar and Lunar Eclipses in 2021

Four eclipses occur in 2021, with annular and total solar eclipses alternating between total and not-quite-total lunar eclipses.

Comet 67P/Churyumov-Gerasimenko

Comets

Comet Watch 2021

If you own an 8-inch or larger telescope you might see more than a dozen new and returning comets this year, including one potential naked-eye candidate.

Deep-sky map Capella region

Deep Sky

Foraging for Deep-sky Delights with Capella, the Goat Star

We explore deep-sky riches within a stone's throw of Capella, one of the season's brightest stars.

Kochab in the Little Dipper

Celestial Objects to Observe

Meet Kochab, a Guardian of the Pole

Meet the stars: Kochab is no record-breaking bright star, but it's easy enough to find — and it may have played an important role through history.

Sirius and M41

Celestial News & Events

Tour 15 of the Brightest Stars on New Year's Eve (VIDEO)

Tour 15 of the sky's brightest stars all in one night on this New Year's Eve! This interactive Worldwide Telescope video will show you the way.

Leonid fireball crossing Orion

Meteors

The Best Meteor Showers in 2021

Sky & Telescope predicts that the year's best meteor shower will be the strong, fireball-rich Perseids in mid-August.

Aldebaran vs. the Sun

Celestial Objects to Observe

Meet Aldebaran, the Bull’s Eye

Learn more about Aldebaran, the red-orange giant star that "follows" the Pleiades across the sky.

Explore the Night with Bob King

Jupiter and Saturn Embrace in Solstice Conjunction

Jupiter and Saturn fashion the Great Conjunction of 2020 when they pair up on December 21st, the winter solstice. That evening they'll be closest in nearly 400 years.

Path of the solar eclipse on December 14, 2020.

Eclipses

A South American Total Eclipse

The Moon’s shadow visits Chile and Argentina again. If you can't be there, watch online!

Capella and the Kids

Night Sky Sights

Meet Capella, the Goat Star

Capella is the sixth-brightest star in the sky — and it's more than one star! The main two stars in the system are near-twins, bright yellow giants.

2001 Leonid storm

Celestial Objects to Observe

Leonid Meteor Shower to the Rescue

Modest but reliable, the annual Leonid meteor shower returns this week. Take an hour or two to relax and enjoy the show.

Cool blue world

Night Sky Sights

Tiny Asteroid Flora and Mighty Uranus Team Up

Both Uranus and the asteroid 8 Flora came to opposition on Halloween. Catch them both in the same corner of the sky the next clear night.

ATLAS with a tail

Comets

Comets Crawl through the Skies at Dawn and Dusk

Comets have been scarce since NEOWISE departed the scene. Not anymore. Suddenly, there are four fresh faces visible from dusk til dawn.

Bootes and the Big Dipper

Celestial Objects to Observe

Meet Arcturus: Guardian of the Bear

Arcturus is one of the brightest stars in the sky — a cool red giant in Bootes, the Herdsman, that's often tied mythologically to Ursa Major, the Bear.

Mars the magnificent

Planets

Behold Mars! The Best View Until 2035

After a two-years hiatus Mars returns big and bright at opposition on October 13th, its best apparition until September 2035.

Moon over Sequoia National Park

Celestial News & Events

International Observe the Moon Night Is Here

International Observe the Moon Night is here. Step outside Saturday evening and admire our closest celestial neighbor with your family.

Caroline's Cluster

Celestial Objects to Observe

Explore Caroline Herschel's Celestial Showpieces

More than 200 years ago Caroline Herschel pointed her telescope at the heavens and discovered some of the finest deep-sky objects. Follow in her footsteps and see them for yourself.

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