a r X i v : a s t r o - p h / 0 2 0 2 2 5 3 v 1 1 3 F e b 2 0 0 2 DraftversionFebruary5,2008 PreprinttypesetusingL A T E Xstyleemulateapjv.14/09/00 USINGAHIPPARCOSDERIVEDHRDIAGRAMTOLIMITTHEMETALLICITYSCATTEROF STARSINTHEHYADES–ARESTARSPOLLUTED? A.C.Quillen 1,2 Dr...
Solar system, assemblage consisting of the Sun and those bodies orbiting it: 8 planets with about 210 known planetary satellites; many asteroids, some with their own satellites; comets and other icy bodies; and vast reaches of highly tenuous gas and dust