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Period: Jan 1, 1531 to
Discoveries of our Soloar System
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Feb 12, 1531
Edmond Halley observes a comet
In the year of 1531, Edmond Halley observed what is now known as Halley's Coment. With research, Halley discovered that 75 to 76, this same excat comment appread in the sky. With his findings, he correctly predicted that this comet would come back in 1607, 1682 and 1751. -
Gallieo's Observations on Jupiter's Moons
Gallieo is the first to observe Jupiter's four moons which he names Io, Europa, Callisto and Ganemede. After some more months, Gallieo proves his findings with Copernicus's Heliocentric Theory. -
Uranus is Discovered as Planet
William Hershel is the first person to observe and conclude Uranus is a planet. Alomg his find of Uranus, Hersel predicted the lenght Jupiter's orbit and two moons of Uranus( Titania and Oberon). -
Ceres the Dwarf
On 1801 day, Giuseppe Piazzi was the first to sight Ceres. With a diamiter of 965 kilometers, Ceres is the largest object found in the asteriod belt between Mar and Jupiter. -
Johann Galle Sights Neptune
The exsistence of Neptune has been proven by mathematics by the work of John Couch Adams and Urbain Leverrier; however, Johann Galle ws the first to observe Neptune by telescope. -
Pluto is Named a Planet
On February 13, 1930, Clyde tombaugh first sights Pluto in Lowell Observatory. However, Pluto was not named a planet on March 13, 1930. -
Kuiper Belt
In 1992, David Jewitt and Jane Luu discovered the Kuiper Belt, a cluster of gas, dust and rocks, while in hopes of searching for a new planet. The Kuiper Belt is approximatly 2.5 to 4.5 billion miles in diamiter. -
Eris
In early 2005, another dwarf planet called Eris was discovered by a group of astronomers at Palomar Observatory . This planet has an orbital period of 560 earth years and is thought to have a radius ranging from 1000 to 1700 km. -
Another Dwarf Planet
On March 31, 2005, by a team of astronomers at Palomar Observatory discovers another planet called Makemake located inside the Kupiter Belt. In 2008, the International Astronomical Union declared Makemake. On Makemake's surface, there lies frozen ethane and methane, and tholins.
