Willson, Robert Wheeler, 1853-1922 · Boston, New York Ginn & company · leaf 142
west Horizon, Cambridge,November 30, 1904; Sid. T. 22h 7ni ble at that altitude 130 LABORATORY ASTRONOMY in twilight. The exact point being marked is brought to themeridian and found to be in E.A. IS SG- and Decl. - 23^° (Fig.61). The fact that its position is very near the ecliptic suggeststhat it…
Astronomy
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