Herschel, John F. W. (John Frederick William), Sir, 1792-1871 · London : Longman, Rees Orme · leaf 205
93.)that this is also the proportion in which the angular re-lotity of the earth about the sun varies. Hence it ap-pears, that the momentary supply of heat received by theearth from the sun varies in the exact proportion of theangular velocity, i. e. of the momentary increase of longi-tude: and… … A Q M P the earths orbit; A its nearest point to thesun, or, as it is called, the perihelion of its orbit; M thefarthest, or the aphelion; and therefore A S M the axisof the ellipse. Now, suppose the orbit divided into twosegments by a straight line P S Q, drawn through thesun, and any how situated…
Astronomy
Internet Archive · York University Libraries · Public Domain Mark 1.0. Free to use for anything.
