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Comet SWAN heads north

Celestial News & Events

Comet SWAN's Final Song

Despite early expectations Comet SWAN appears to be fizzling, providing yet another opportunity to appreciate what makes these objects so unique.

Celestial News & Events

Comet SWAN Expected to Put on a Splendid Show

Comet SWAN will grace northern skies in the days to come.

Explore the Night with Bob King

Oh No! Comet ATLAS Is Fragmenting

Find out when and where to see Comet ATLAS (C/2019 Y4) — and stay tuned to see how bright (or not) this comet gets.

Celestial News & Events

Comet Iwamoto Ascends and Brightens

Comet Iwamoto is visible as a binocular target from a dark sky. Follow it this week as it passes from Virgo into Leo.

Comet Triple Crown

Solar System

Comet 46P/Wirtanen Approaches Earth

On December 16th, the comet will pass within 12 million kilometers of Earth and should brighten to about 3rd magnitude, though the diffuse coma and a nearly full Moon will make observations difficult.

Comets

Amateur Don Machholz Discovers His 12th Comet! (Updated)

Arizona comet hunter Don Machholz did it again! He discovered his 12th comet only two mornings ago. Set your alarm, grab your scope, and take a look.

Explore the Night with Bob King

Three Upcoming Sky Events We Can All Share

Comets, meteors, and Moon: Share the night sights that are coming our way!

Pretty package

Explore the Night with Bob King

Comet 21P/Giacobini-Zinner Shines in September

Watch a binocular-bright comet leapfrog across Auriga in the next few weeks before a remarkable conjunction with the bright star cluster, M35.

Explore the Night with Bob King

PanSTARRS Comet, Rocked by Outburst, Goes Green

Comet PanSTARRS (C/2017 S3) has erupted again! Now bright enough to see in binoculars, it might become a naked-eye object if it survives until perihelion.

Celestial News & Events

Comet Heinze (C/2017 T1): A Binocular Comet for the New Year?

Just discovered, Comet Heinze (C/2017 T) will zoom by Earth in January and may just show up in your binoculars.

Beautiful Sight in Aquarius

Explore the Night with Bob King

Comet PanSTARRS (C/2015 ER61) in Outburst and Binocular Bright

Dawn comet C/2015 ER61 PanSTARRS just underwent a bright outburst and is now an easy binocular object. Take a look before the Moon returns!

Comets

Comet Lovejoy Brightens Quickly, Heads North

Terry Lovejoy's new comet has gone from faint to bright in just three weeks and is now a tempting binocular target at dawn.

Celestial News & Events

Comet 45P Returns to Dark Skies

With the Moon out of the picture, amateurs can once again check in on comet 45P/H-M-P, now making an appearance in the evening sky.

Comet 45P

Comets

Green Comet 45P Makes Close Earth Flyby

Green-glowing 45P/Honda-Mrkos-Pajdusakova will make an unusually close pass by Earth on Saturday. Watch it boogie across the morning sky this week!

Comet Triple Crown

Pro-Am Collaboration

Comet Campaign Seeks Imagers Worldwide

Calling all imagers! Three comets will make close flybys of Earth over the next two years. Join a new pro-am effort to make the most of this rare triple play.

Celestial News & Events

Comet 29P/Schwassmann-Wachmann 1 Blows Its Top . . . Again!

An otherwise faint and distant periodic comet underwent a bright outburst at the end of last month. Now it's visible in amateur telescopes at nightfall.

Solar System

Comets Break Up and Make Up

Comet 67P/Churyumov-Gerasimenko appears to have split into two segments that briefly orbited each other and then slowly merged into a new configuration.

Explore the Night with Bob King

See Comet PanSTARRS (C/2013 X1) in Binoculars at Dawn

An old friend from winter returns for an encore in the morning sky. Already visible in binoculars, Comet PanSTARRS (C/2013 X1) may reach naked-eye visibility in June.

252P Drags its Tail

Celestial News & Events

Up, Up, and Away with Comet 252P

With the Moon finally put to bed and Comet 252P still bright, there's no better time than now to see it. Nearby Mars and Saturn only sweeten the deal.

Blue Q-tip

Celestial News & Events

Catalina Comet Sails Into Northern Skies

Comet Catalina returns this month with naked-eye potential. Follow its every move with our guide and maps.

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