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

° '
° '

Photos

PICTURE OF THE DAY

Spiral masterpiece

Spiral masterpiece

Spiral galaxy M101 is a giant with a diameter on the order of 170,000 light-years. It lies in the constellation Ursa Major the Great Bear some 23 million light-years away.

IMAGING BASICS see all »

ISON_Nov15_Peach

Catch Comet ISON with your camera

Be ready to photograph this special celestial visitor with these expert tips.
Gamma-Cygni-region

How to image the sky

Our astrophotography series will have you becoming an accomplished imager in no time.
The Leo Trio

2010 Astroimaging Contest: Deep-sky category entrants

Nebulae dominated the category, but the winner is a beautiful trio of galaxies.
ADVERTISEMENT

FREE EMAIL NEWSLETTER

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

ADVERTISEMENT
ADVERTISEMENT
asy_blackholes_300x250

Click here to download a FREE Women in Astronomy PDF curated by Astronomy magazine.

Find us on Facebook