Astronomy for Dummies by Maran Stephen P.;

Author:Maran, Stephen P.;
Language: eng
Format: epub
Publisher: John Wiley & Sons, Incorporated
Published: 2017-08-28T00:00:00+00:00

The disk of Uranus has a pale green tint; you can make out the disk with a high-power eyepiece when viewing conditions are good. (Chapter 3 has more about telescopes and eyepieces.) You can detect the motion of Uranus by making a sketch of its relative position among the stars in the field of view. For this purpose, use a low-power eyepiece so the field of view is larger and more stars are visible. Look again in a few hours or on the following night, and sketch again.

You may glimpse a few of the biggest of Uranus’s 27 known moons with large amateur telescopes, but they’re better suited for study with powerful observatory telescopes. Uranus’s dark rings are detectable with the Hubble Space Telescope and in images made with very large telescopes on Earth, but you can’t see them with amateur instruments.

You can see the Hubble Space Telescope images of Uranus and its rings at hubblesite.org/images/news/86-uranus. You can browse images of Uranus, its moons, and the rings from the Voyager 2 space probe at photojournal.jpl.nasa.gov, the Planetary Photojournal website; just click on the labeled picture of Uranus there. (Voyager 2 is the only spacecraft that visited Uranus.)

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