Uranus =)

By Esha

Introduction

Uranus is the seventh planet from the Sun . It has the fourth largest planetary mass. Uranus is made of methane(a colorless,odorless gas ),hydrogen, and helium. Uranus is a really cold planet so its been called the "ice giant."

History

Uranus was once mistaken as a star because of its slow orbit and of its dimness (meaning not clear or not much light).William Herschel was the first one to discover Uranus with a telescope and on March 18,1781.

Name

Uranus is the only planet that was derived from Greek mythology .In the Chinese,Japanese,Korean languages,Uranus is translated as the “sky king star.

Symbol

Astronomers have developed various symbols to stand for celestial (astronomical) object.it has a circle with a dot inside and an arrow representing Mars' spear.

The symbol

The Orbit and Rotation

Uranus revolves around the Sun once every 84 earth years.Its average distance from the Sun is about 3 billion Kilometers. The rotational period of Uranus is about 17 hrs 14 min.The average speed is 24,607 kilometers per hour.

The Rings of Uranus

The rings of Uranus were discovered by an astronomical team ; James L. Elliot(main person) , Edward W. Dunham , and Douglas J. Mink.They noticed that the rings are very dark and thin.Now the astronomers know that Uranus has 13 unusual rings.Some are brighter and some are darker.
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James Ludlow Elliot

The rings of Uranus continued

The names of some of the rings are 6 , 5 , 4 , Alpha , Beta , Eta , Gamma , Delta , Lambda , and Epsilon

The moons of Uranus

Uranus has 6 major moons but in total it has 27 moons.The six moons are Puck , Miranda , Ariel , Umbriel , Titania , and Oberon.Titania is the largest moon of Uranus and Miranda is the smallest moon of Uranus.

Mission

Only one safe mission has flown to Uranus, the Voyager 2. Voyager 2 is a space probe (an instrument used to explore space) that was launched in 1977 and it discovered 10 new moons.The closest it got was 81,500 kilometers (50,600 miles) away from the cloud tops of Uranus.
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