Collins, A. Frederick (Archie Frederick), 1869- · New York, London, D. Appleton and company · leaf 217
QUARTER CIRCLE RING, HORIZONTAL LINEA AND B ARE RIGHT ANGLES … RADIUS. TANGENT. OPPOSlflONl Fian 185.—Geometrical Figures., APPENDIX C THE GREEK ALPHABET Many of the brighter stars have names, as Aldebaran, Ca-pella, Sirius, etc., but astronomers now indicate the stars of aconstellation by the letters of the Greek alphabet. The usualmethod is to call the…
Astronomy · Stars
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
