Willson, Robert Wheeler, 1853-1922 · Boston, New York Ginn & company · leaf 142
Fig. 59. Orion rising: Cam-bridge, November 10,9 P.M.,Std. T. E.A. of SunCamb. Sid. T. 5h 15m + 16 5 31 + 11 5 42 16 26 22 8 Eectifying forCambridge, Lat.+42°.4, and for 228 Sid. T., it isfound, by meansof the altitudearc (Fig. 60), thatthere is no starupon the globe atthe given altitudeand…
Astronomy
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