Photoelectric Observations of the Primary Eclipse of AY Persei

Photoelectric Observations of the Primary Eclipse of AY Persei

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...

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Main Authors: Il-Seong Nha, Jung-Rack Kim
Format: Article
Language:English
Published: Korean Space Science Society (KSSS) 1989-12-01
Series:Journal of Astronomy and Space Sciences
Online Access:http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/1989/v6n2/OJOOBS_1989_v6n2_119.pdf
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spelling doaj-9e2baa0632d34b16a9232bdd867f07c12020-11-25T01:52:04ZengKorean Space Science Society (KSSS)Journal of Astronomy and Space Sciences2093-55872093-14091989-12-0162119125Photoelectric Observations of the Primary Eclipse of AY PerseiIl-Seong Nha0Jung-Rack Kim1Yonsei University Observatory, Seoul 120-749, KoreaYonsei University Observatory, Seoul 120-749, KoreaUBV 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 I = JD 2427152.237(±10)+11.d776620E(±4) are made.http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/1989/v6n2/OJOOBS_1989_v6n2_119.pdf
collection DOAJ
language English
format Article
sources DOAJ
author Il-Seong Nha
Jung-Rack Kim
spellingShingle Il-Seong Nha
Jung-Rack Kim
Photoelectric Observations of the Primary Eclipse of AY Persei
Journal of Astronomy and Space Sciences
author_facet Il-Seong Nha
Jung-Rack Kim
author_sort Il-Seong Nha
title Photoelectric Observations of the Primary Eclipse of AY Persei
title_short Photoelectric Observations of the Primary Eclipse of AY Persei
title_full Photoelectric Observations of the Primary Eclipse of AY Persei
title_fullStr Photoelectric Observations of the Primary Eclipse of AY Persei
title_full_unstemmed Photoelectric Observations of the Primary Eclipse of AY Persei
title_sort photoelectric observations of the primary eclipse of ay persei
publisher Korean Space Science Society (KSSS)
series Journal of Astronomy and Space Sciences
issn 2093-5587
2093-1409
publishDate 1989-12-01
description 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 I = JD 2427152.237(±10)+11.d776620E(±4) are made.
url http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/1989/v6n2/OJOOBS_1989_v6n2_119.pdf
work_keys_str_mv AT ilseongnha photoelectricobservationsoftheprimaryeclipseofaypersei
AT jungrackkim photoelectricobservationsoftheprimaryeclipseofaypersei
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