User:David Kernow/List of Solar System bodies formerly regarded as planets
The table below lists Solar System bodies formerly considered to be planets:
| Bodies | Notes | |
|---|---|---|
| Sun |
Believed in antiquity to be what would now be described as planets. | |
|
Moon | |
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|
1 Ceres[1] 2 Pallas 3 Juno 4 Vesta |
The first known asteroids. Several other asteroids were also included, until their reclassification during the 1850s [1]. |
|
Callisto Europa Ganymede Io |
The four largest moons of Jupiter, known as the Galilean moons after their discoverer Galileo Galilei. He referred to them as the "Medicean Planets" in honor of his patron, the Medici family. |
![[1]](http://spaceweather.com/swpod2006/13sep06/Pollock1.jpg){kind=link}
Footnotes[edit]
See also[edit]
- Planet
- Dwarf planet
- Protoplanet
- Planetesimal
- Definition of a planet
- 2006 redefinition of planet
- Table of planets and dwarf planets in the Solar System
- Ninth planet
External links[edit]
- When Did the asteroids Become Minor Planets?
- Matt Smith: Dude, where's my solar system?
- Boston Globe: Planet politics (Owen Gingerich) September 3, 2006