Harris, John · Montreal, Lovell Printing and Publishing Co. · leaf 78
distance of the object from the wall. This apparent PARALLAX. 9 angular displacement of the object in consequence ofalteration in the observers station, is called parallax ofthe object. Fig. 2.—Let A.B. represent the diameter of the earthsorbit; and m. and n. two stars at different distances. Asthe… … Fig. 3.—Let E. be the earth ; and a. and h. two stars^at a certain distance from each other and a certain dis-tance from the earth ; and let c. and d. be two other starsthe same distance apart as a. and &., but twice the distance
Astronomy
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