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

° '
° '

Glenn Chaple's observing basics: A ring and a triangle

August 2004: It's time for another edition of Professor Chaple's pop multiple-choice astroquiz.
Greetings all you seekers of astronomical knowledge. It's time for another edition of Professor Chaple's pop multiple-choice astroquiz: Is a triangle a three-sided geometric figure? A musical percussion instrument? Or, is a triangle Vega, Altair, and Deneb? If you answered "yes" to either of the first two, you're wrong — at least from an astronomical viewpoint. "Vega, Altair, and Deneb" is the right answer. These three bright stars make up the Summer Triangle, which currently is visible in the evening sky. Traversed by the Milky Way, the Summer Triangle is rich with telescopic treats, some of which are easy targets for the beginner.

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...