Sharpless, Isaac, 1848-1920, Philips, G. M. (George Morris), 1851-1920, joint author · Philadelphia, J.B. Lippincott company · leaf 49
000 Miles.1 Diameter,866,000 Miles. Axial Rotation, 25 Days. Specific Grav-ity, 1.4. 33. The Suns Parallax.—In finding the distance fromthe sun to the earth, astronomers have generally triedto determine first the suns parallax.2. The parallax ofa heavenly body is the angle that the earths… … Fig. 10.—The Suns Parallax (greatly exaggerated). Fig. 10 will make this clear. E is the centre of theearth, and AE is the earths radius. Then, if S repre- 1 In kilometres, now so frequently used for scientific measurements,the suns distance is between 149 and 150 millions. A kilometre isnearly…
Astronomy
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