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| Average distance from the Sun | highly elongated orbit that takes it very close to the Sun and then flings it out into the outer solar system, well past the orbit of Pluto |
| Diameter of Nucleus | 15 km x 7 km |
| Mass | 1.7 e15 kilograms |
| Orbital period around the Sun | 76 Earth years |
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| Halley is perhaps the most famous comet in history. This is the comet that proved correct Edmund Halley's prediction that it would reappear. It is responsible for depositing the debris that, when falling through Earth's atmosphere, causes the Orionid meteor showers. | |
Our Solar System
Our solar system is located on the edge of a spiral arm called Orion’s Arm, and is one-half to two-thirds of the way (28,000 light-years) from the center of our Milky Way galaxy.The Sun, Sol
The Inner Planets
Mercury
Venus
Earth
The Moon
Mars
The Asteroid Belt
Dwarf planet, Ceres
Asteroid, Ida
Asteroid, Vesta
Asteroid, Eros
The Outer Planets
Jupiter
Saturn
Uranus
Neptune
The Kuiper Belt
Dwarf planet, Pluto
Dwarf planet, Eris
The Oort Cloud
Dwarf planet, Sedna
Comet Halley
Comet Hale-Bopp
Glossary of Terms
