Solar System all have impact craters and tectonic surface features, such as rift valleys and volcanoes. The term "inner planet" should not be confused with "inferior planet", which designates those planets that are closer to the Sun than Earth is (i.e. Mercury and Venus). Asteroids except for the largest, Ceres, are classified as small Solar System bodies and are composed mainly of refractory rocky and metallic minerals, with some ice. They range from a few metres to hundreds of kilometres in size. Asteroids smaller than one meter are usually called meteoroids and micrometeoroids (grain-sized), depending on different, somewhat arbitrary definitions. The asteroid
Gustav Holst and you've got to conduct'." There was a burst of activity to get things ready in time. The girls at St Paul's helped to copy out the orchestral parts, and the women of Morley and the St Paul's girls learned the choral part in the last movement. The performance was given on 29 September to an invited audience including Sir Henry Wood and most of the professional musicians in London. Five months later, when Holst was in Greece, Boult introduced "The Planets" to the general public, at a concert in February 1919; Holst sent him a long letter full of