Herschel, John F. W. (John Frederick William), Sir, 1792-1871 · London : Longman, Rees Orme · leaf 393
oducedifferent parallactic displacements of them on the sur-face of the heavens, regarded as infinitely distant.Every star, in consequence of the earths annual motion,should appear to describe in the heavens a small ellipse,(distinct from that which it would appear to describe inconsequence of the… … base; and this section will be of less dimensions, themore distant is the star. If, then, we regard two stars,apparently situated close beside each other, but in CH. XII. EFFECT OF PARALLAX ON A DOVBLE STAR. SS7 reality at very different distances, their parallactic el-lipses will be similar, but…
Astronomy
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