7

SEVENTH EDITION

Michael A. Seeds

Joseph R. Grundy Observatory

Franklin and Marshall College

Dana E. Backman

SOFIA (Stratospheric Observatory

for Infrared Astronomy)

SETI Institute & NASA Ames

Research Center

Australia • Brazil • Canada • Mexico • Singapore • Spain
United Kingdom • United States

AAuAuAsttraraaalila • BrBrazazil • Canada • Mexico • Singaporere • SSppain