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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| Format: | Article |
| Language: | English |
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The Korean Space Science Society
1989-12-01
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| 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 |
| _version_ | 1797368248176476160 |
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| author | Il-Seong Nha Jung-Rack Kim |
| author_facet | Il-Seong Nha Jung-Rack Kim |
| author_sort | Il-Seong Nha |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-03-08T17:29:56Z |
| format | Article |
| id | doaj.art-9e2baa0632d34b16a9232bdd867f07c1 |
| institution | Directory Open Access Journal |
| issn | 2093-5587 2093-1409 |
| language | English |
| last_indexed | 2024-03-08T17:29:56Z |
| publishDate | 1989-12-01 |
| publisher | The Korean Space Science Society |
| record_format | Article |
| series | Journal of Astronomy and Space Sciences |
| spelling | doaj.art-9e2baa0632d34b16a9232bdd867f07c12024-01-02T16:33:33ZengThe Korean Space Science SocietyJournal 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 |
| spellingShingle | Il-Seong Nha Jung-Rack Kim Photoelectric Observations of the Primary Eclipse of AY Persei Journal of Astronomy and Space Sciences |
| title | 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_short | Photoelectric Observations of the Primary Eclipse of AY Persei |
| title_sort | photoelectric observations of the primary eclipse of ay persei |
| url | http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/1989/v6n2/OJOOBS_1989_v6n2_119.pdf |
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