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

° '
° '

Has anyone used Voyager spacecraft images to measure stellar parallax?

GLENN PFEFFER, PLANO, TEXAS
No, but it was considered. The reason parallax measurements weren't taken with Voyager or any other interplanetary spacecraft is simply that astronomers can do better from the ground or with dedicated satellites like Hipparcos in low Earth orbit.The cameras aboard the Voyager spacecraft provide an image scale such that a single picture element, or pixel, spans about 2" on the sky. Image-processing software could improve this resolution by a factor of 4, so, in principal, the Voyager cameras coul...

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...