Tonight's Sky
Sun
Sun
Moon
Moon
Mercury
Mercury
Venus
Venus
Mars
Mars
Jupiter
Jupiter
Saturn
Saturn

Tonight's Sky — Change location

OR

Searching...

Tonight's Sky — Select location

Tonight's Sky — Enter coordinates

° '
° '
HKTauri_sliderlarge

Weird arrangement

Astronomers find misaligned planet-forming gas disks around two young stars

Learn more »

A must-have app!

Put the universe at your fingertips

Purchase today »

Mass map

Mapping the mass within a galaxy cluster more precisely than ever

Learn more »

P22861_564x453

Get started in the hobby!

Find your way around the night sky with our new app!

Buy now »

Seeing a halo

Hubble reveals an unexpected size and shape to the halo of Centaurus A

Learn more »

Uwingu Mars

Name a crater ... make an impact!

Learn more »

Starmus_rotatorlarge

Starmus 2014 Rocks Astronomy!

Join astronomy’s greatest minds in the Canary Islands, September 22–27, 2014. New speakers continue to be announced!

Get the latest info »

Why Join?

Get more from Astronomy.com!

Register Today »

Reliving Apollo 11

EXCLUSIVE! How one small step became a giant leap

Read the story »

P20974_app_563x452_2

GET IT NOW!

Astronomy is available on the App Store!

Learn more »

Observing Basics

Your Eyes & Observing

Watch now »

Surprising shape

Nucleus of Rosetta target consists of two separate parts

Learn more »

FaroeIslandsEclipse_slider

Faroe Islands Eclipse

Join Astronomy magazine and MWT Associates, Inc., March 14–23, 2015, as they take in totality from these unspoiled North Atlantic islands. Learn more »

Astronomy on DVD

Explore Astronomy magazine on DVD!

Order today »

3-D outburst

The first high-res model of the expanding cloud from Eta Carinae

Learn more »

Weird arrangement

Astronomers find misaligned planet-forming gas disks around two young stars

Learn more »

PICTURE OF THE DAYsee all »

Messier 10

Globular cluster M10 floats through space within the boundaries of the constellation Ophiuchus the Serpent-bearer. It lies approximately 14, 300 light-years away. (3.6-inch Astro-Tech AT90DT refractor at f/6.7, SBIG ST-8300 CCD camera, LRGB image with exposures of 120, 40, 40, and 40 minutes, respectively)
ADVERTISEMENT

FREE EMAIL NEWSLETTER

Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter.

ADVERTISEMENT
ADVERTISEMENT

Loading...