Moulton, Forest Ray, 1872-1952 · New York, The Macmillan company · leaf 210
t of Al-debaran is the ruddy Betelgeuze. About 20° southwest of CH. V, 98] THE CONSTELLATIONS 163 Betelgeuze is the first-magnitude star Rigel, a magnificentobject which is at least 2000 times as luminous as the sun.About midway between Betelgeuze and Rigel and almoston the equator is a row of… … Pig. 60. — Orion. Photographed at the Yerkes Observatory (Hughes). Rigel. These stars constitute the Sword of Orion. The cen-tral one of them appears a little fuzzy without a telescope,and with a telescope is found to be a magnificent nebula.Fig. 61. In fact, the Great Orion Nebula impresses…
Astronomy
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