- March 13 -

Planet Uranus Discovered

Uranus was discovered by the British astronomer, William Herschel on the 13th of March 1781, but initially reported it (on April 26, 1781) as a

Planet Uranus Discovered

Uranus was discovered by the British astronomer, William Herschel on the 13th of March 1781, but initially reported it (on April 26, 1781) as a "comet".
Uranus had been observed on many occasions before its recognition as a planet, but it was generally mistaken for a star.
He discovered Uranus accidentally with his telescope while surveying all stars down to those about 10 times dimmer than can be seen by the naked eye. One "star" seemed different, and within a year Uranus was shown to follow a planetary orbit. The object was soon universally accepted as a new planet.

Uranus is the seventh planet from the Sun and was the first planet to be discovered with the use of a telescope. Uranus’ most unique feature is that its axis sideways in comparison to other planets i.e. its north and south poles are in line with where other planets have their equators. Uranus is named after the Greek sky deity Ouranos, the earliest of the lords of the heavens.

The only spacecraft to visit Uranus is Voyager 2 which passed in 1986 passing at a distance of 81,500 km.
Uranus has two sets of rings, nine inner rings and two outer rings.
The first set of rings was discovered in 1977 and the second set was discovered in 2003 by the Hubble Space Telescope.

Although Uranus is visible to the naked eye, just like the classical planets — Mercury, Venus, Mars, Jupiter, and Saturn — it was long mistaken as a star because of the planet’s dimness and slow orbit.

Source:
http://space-facts.com/uranus/
http://www.space.com/45-uranus-seventh-planet-in-earths-solar-system-was-first-discovered-planet.html

Categories:

More holidays on this day:

Ear Muff Day
World Rotaract Day

You may also like...

Interesting events from Science category.

First Untethered Spacewalk

>Bruce McCandless II and Robert L. Stewart astronauts made the first untethered spacewalks in history during Space Shuttle mission STS-41B. McCandless and Stewart used their nitrogen-propelled manned maneuvering units (MMUs) to make the first space walk unattached to any orbital vehicle....

Edison's Phonograph Patented

Patent for Phonograph Issued February 19, 1878 One of Edison's first great inventions Washington - Thomas A. Edison, one of the outstanding geniuses in the history of technology, received patent no. 200,521 for a phonograph on February 19, 1878. This patent is just one of the more than one...

Planet Uranus Discovered

Uranus was discovered by the British astronomer, William Herschel on the 13th of March 1781, but initially reported it (on April 26, 1781) as a "comet". Uranus had been observed on many occasions before its recognition as a planet, but it was generally mistaken for a star. He discovered...

Hubble Telescope Sent Into Orbit

Apr 25, 1990, the crew of the U.S. space shuttle Discovery places the Hubble Space Telescope, a long-term space-based observatory, into a low orbit around Earth. The space telescope, conceived in the 1940s, designed in the 1970s, and built in the 1980s, was designed to give astronomers an...

Chimborazo Day

Chimborazo Day celebrates the mountain which represents the highest point on Earth. Technically, Chimborazo is higher than Mt. Everest, as it resides closer to the equator where the Earth ‘bulges’, making it relatively taller even though it’s smaller overall! Chimborazo, an inactive...

Nobel Prize Established

On 27 November 1895, Alfred Nobel signed his last will and testament, giving the largest share of his fortune to a series of prizes in Physics, Chemistry, Physiology or Medicine, Literature and Peace - the Nobel Prizes. In 1968, Sveriges Riksbank (Sweden's central bank) established The Sveriges...

Download KeepIn Calendar

Enjoy the interesting stories even on your phone or tablet