Home › S › Sun (PARALLAX OF THE miles More)

Sun (PARALLAX OF THE miles More)

PARALLAX OF THE 93,000,000 miles. More time, labor, and money have been expended in the determination of the polar parallax than of any other astronomical constant, on account of its importance in giving us an accurate base line with which to gauge the solar system and then strike out into the depths of stellar space. Before the last transit of Venus it was thought that careful observation would give an exceedingly accurate value of this constant; but these hopes were disappointed, and it is known that we have at hand at any time more accurate methods of determining the distance of the sun than from any possible observation of a transit of Venus. The most accurate direct method is likely to be the direct measurement of the parallax of the nearer and brighter asteroids by the heliometer.