Elements of theoretical and descriptive astronomy, for the use of colleges and academies (1901)
White, Charles J · New York: J. Wiley & sons · leaf 201
lated, astronomers are in thehabit of using that curve to represent at first the approximateform of a comets orbit. The elements of a parabolic orbit arefive in number, and are as follows:— (1.) The inclination of the orbit to the plane of the ecliptic:(2.) The longitude of the ascending node:(3.)… … NUMBER OF COMETS. 191 elements can be computed from the results of three distinct ot>servations of the position of the comet: and these three observa-tions may aM be made, if necessary, within the space of 48 hours.The parabolic elements having thug been obtained, the cataloguesof comets are…
Astronomy
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
