list-planets

Section 10. List of The Planets.

The Planets, in order moving outwards from The Sun are as follows:-

The Four Inner Solar System Planets:- Mercury, Venus, Earth, and Mars.

Then The Outer Solar System Planets, ie:- The Four Giant Planets:- Jupiter, Saturn, Uranus, and Neptune; and then lastly:- (The Outermost very small Planet) Pluto.

To verify the above, here is a scan from the book Astrophysical Quantities, by C.W. Allen, Emeritus Professor of Astronomy at The University of London, 3^rd edition, Athlone Press, reprint 1997, page 140.

The fourth column entitled Radius (equator) R shows the radius expressed in kilometres of each planet. It is obvious at a glance that Jupiter, Saturn, Uranus, and Neptune are very large planets compared with all the other planets.