Photoelectric Observations of the Primary Eclipse of AY Persei

Details Photoelectric Observations of the Primary Eclipse of AY Persei Photoelectric Observations of the Primary Eclipse of AY Persei

Dec 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989jass....6..119n&link_type=abstract

Journal of Astronomy and Space Sciences, vol.6, no2, p.119-125

Astronomy and Astrophysics

Astronomy

Scientific paper

UBV observations of the primary eclipse of Algol-type long period eclipsing binary AY Persei have been successfully made using the 61-cm reflector at the Ilsan Station of Yonsei University Observatory in September and October, 1989. These light curves furnish ones to deduce following results; (1)the total duration of the eclipse lasted for about 0.p066(0.78 days) with no clear evidence of the existence of the totality, (2)the depths of mid-eclipse of 0.m91 and 1.m07 for V and B, respectively, (3)two times of minimum light, JD2447820.203 and JD 2447820.200 for V and B, respectively, and (4)no period variation with the improved light elements, Min ¥°= JD 2427152.237(¡¾10)+11.d776620E(¡¾4) are made.

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