Ecce Coelum; or, Parish Astronomy. In Six Lectures

198 pp. CONTENTS: Preparatory: Uses; History; Instruments of Investigation. The Sky: Aspect; Nature; Nature of Contents; Arrangement of Contents. Satellite Systems: Diurnal Revolutions; Mutual Distance; Shapes and Sizes; Mutual Gravitations; Masses and Densities; Orbits; Mutual Aspects. Planet Systems: Order of Bodies; Periods; Distances from Sun; Shapes and Inclinations of Orbits; Sizes; Velocities; Masses and Densities; Perturbations. Higher Systems: Sun Systems; Group Systems; Cluster Systems; Nebula Systems; Ulterior Systems; Ultimate System. Author of Nature: Vastness; Variety in Unity; Finish of Minima; Wisdom; Dynamics; Relation to law; Relation to Time and Motion; Mystery.