The Astrophysical journal . 080 34-8 35-8 55-257 37-1 35-0 99-935 35-1 4415-722 30-785 35-851 23-9 33-2 Means - - - — + + Correction for curvature — — — to O - - + — — — + + Results of the measurements are given in column 5 of TableI, which will not need explanation except with regard to thesystem of weights used. The assignment of weights is generallymore or less of an arbitrary ma
The Astrophysical journal . 080 34-8 35-8 55-257 37-1 35-0 99-935 35-1 4415-722 30-785 35-851 23-9 33-2 Means - - - — + + Correction for curvature — — — to O - - + — — — + + Results of the measurements are given in column 5 of TableI, which will not need explanation except with regard to thesystem of weights used. The assignment of weights is generallymore or less of an arbitrary matter, and after some considerationthe following system was adopted : 62 IV. H. WRIGHT Plates upon which less than eight lines were measured, wt. = Y^,. Plates upon which between eight and twelve lines were measured, wt. = %. Plates upon which more than twelve lines were measured, wt. ~ i. Assuming with Belopolsky an orbital period equal to that ofthe light variation of the star ( days), the velocity curve. Fig. I. was drawn in the usual manner. In Fig. i the abscissae repre-sent time intervals counted from the preceding light maxima,and the ordinates, velocities in the line of sight in kilometersper second. The dotted line AB indicates the velocity of thecenter of mass of the system, the upper and lower areas havingbeen adjusted to equality by means of a planimeter. Adoptingthe formulae and notation of Lehmann-Filhes,* the followingconstants and elements have been computed : ELEMENTS I. A = km, greatest positive velocity^ in the line of sight.^= km, numerical value of greatest negative velocity^ inline of —/j = , time during which the velocity curve is below theline AB. In computing the light ephemeris Schurs elements have been used : A. N., 3282 ;also Chandler Third Catalogue of Variable Stars, A. J., 379.*A. N., Referred to the center of mass of the system. ORBIT OF 1] AQUILAE 63 -^= 3^, ratio of greatest distances of star abov
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectspectru, bookyear1895
