OBSERVATIONS AND PERIOD VARIATION ANALYSIS OF THE W-UMA TYPE STAR SW LAC

Authors
PENA JH HOBART MA RODRIGUEZ E
Citation
Jh. Pena et al., OBSERVATIONS AND PERIOD VARIATION ANALYSIS OF THE W-UMA TYPE STAR SW LAC, Revista Mexicana de Astronomia y Astrofisica, 25(2), 1993, pp. 63-69
Citations number
57
Categorie Soggetti
Astronomy & Astrophysics
Journal title
Revista Mexicana de Astronomia y Astrofisica → ACNP
ISSN journal
01851101
Volume
25
Issue
2
Year of publication
1993
Pages
63 - 69
Database
ISI
SICI code
0185-1101(1993)25:2<63:OAPVAO>2.0.ZU;2-J
Abstract
Recent photoelectric-photometric data of the W UMa system SW Lacertae are reported. From the times of minima obtained in the present paper a nd those found in the literature, linear, quadratic and harmonic ephem eris are derived; the residuals show that the period variation of this system is not strictly periodic.