As this 2004 infrared Keck telescope image shows, Uranus is tilted, plus it has structure in its atmosphere. It even has a ring system. Not so boring now, is it. Click to enlarge this image.
Lawrence Sromovsky, (Univ. Wisconsin-Madison), Keck Observatory
Lawrence Sromovsky, (Univ. Wisconsin-Madison), Keck Observatory
Of all the planets in our solar system, I'm usually guilty of thinking poor old Uranus is pretty bland and uninteresting.
In fact, the only interesting things I can ever think to say about it are that it orbits the sun on its side... and has a pretty exciting story attached to its discovery.
Other than that, well... let's look at Neptune instead. NO, WAIT! Something exciting has happened on Uranus!
Uranus, like the other giant planets in the solar system (Jupiter, Saturn and Neptune), is made up almost entirely of gas, although it differs in composition to Jupiter and Saturn -- it has higher quantities of water, methane and ammonia ices. Unlike conventional ice, it's a super dense liquid. Uranus, like Neptune, is often referred to as an "ice giant."
Uranus measures a mighty four-times the diameter of Earth and orbits the sun at an average distance of 2.9 billion kilometers (around 20 times the Earth-sun distance). From that distance it's only just visible to the naked eye under dark skies, but telescopes are needed to see any detail.
Nearer planets seem to receive more attention from amateur astronomers but that may be about to change.
An image taken by planetary scientist Larry Sromovsky, with the Gemini 8.1 meter telescope shows a bright patch that is thought to be an eruption of methane ice high in the atmosphere.
Leading planetary scientist Heidi B. Hammel used her Facebook page to announce the discovery and to appeal for further observations. Amateur astronomers with advanced equipment are being asked to make observations of the planet and, if enough confirmations are received, it may lead controllers of the Hubble Space Telescope to interrupt observations and take a closer look.
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