Precision of Parabolic Elements
Volume 18 number 1 (1989)
- Emilia P. Belserene
- Maria Mitchell Observatory,
Abstract
Formulae are given for a least-square parabola on an O-C diagram, with calculation of the parabolic elements and their mean errors. The formulae are applied to TY Sct, an eleven-day classical Cepheid. The resulting rate or change of period is +0.000032 day per year +-0.000016.