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

° '
° '

Get to know the exoplanets

Astronomers have found more than 140 planets circling stars other than the Sun. Here's the scoop on all the known planets as of October 2004.
Astronomers continue to find planets orbiting other stars. More than 140 have been confirmed so far, with the vast majority orbiting stars fairly similar to the Sun. (That's largely a selection effect, however — the searches have looked mainly at stars with properties similar to the Sun.) In the table below, each known exoplanet is listed in order of increasing period of revolution around its parent star. The three new exoplanets discussed in "Lucifer's planets" are shown in red. All have periods of less than 10 days, and all rank among the least-massive planets yet found outside our solar system.

Already a subscriber? Register now!

Registration is FREE and takes only a few seconds to complete. If you are already registered on Astronomy.com, please log in below.
ADVERTISEMENT

FREE EMAIL NEWSLETTER

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

ADVERTISEMENT
ADVERTISEMENT
BoxProductcovernov

Click here to receive a FREE e-Guide exclusively from Astronomy magazine.

Find us on Facebook

Loading...