Photoelectric Observations of Close Binary AG Persei and its Apsidal Motion Analysis
A total of 546 UBV photoelectric observations of AG Per was carried out from January to December in 1993 at Chungbuk National University Observatory. With our observations, UBV light curves were constructed, three minimum times of JDHel. 2449284.213, JDHel. 2449360.060, and JDHel. 2449363.192 were d...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
The Korean Space Science Society
1996-06-01
|
| Series: | Journal of Astronomy and Space Sciences |
| Online Access: | http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/1996/v13n1/OJOOBS_1996_v13n1_63.pdf |
| _version_ | 1797368597105868800 |
|---|---|
| author | K. H. Lee J. H. Jeong |
| author_facet | K. H. Lee J. H. Jeong |
| author_sort | K. H. Lee |
| collection | DOAJ |
| description | A total of 546 UBV photoelectric observations of AG Per was carried out from January to December in 1993 at Chungbuk National University Observatory. With our observations, UBV light curves were constructed, three minimum times of JDHel. 2449284.213, JDHel. 2449360.060, and JDHel. 2449363.192 were determined. The phase displacement of secondary minimum time ¥ä=-0.046 were determined and orbital eccentricity e=0.071 was calculated. Forty-five times of minimum light (including ours) were collected from the literature and plotted on O-C diagram. We analyzed these data and apsidal motion period of U=76.17 (years) was obtained. Using e and U for AG Per, the internal structure constant, log k2, was found to be -2.13. |
| first_indexed | 2024-03-08T17:34:56Z |
| format | Article |
| id | doaj.art-804452d028cb4e5ea1ef8f1d9e07f391 |
| institution | Directory Open Access Journal |
| issn | 2093-5587 2093-1409 |
| language | English |
| last_indexed | 2024-03-08T17:34:56Z |
| publishDate | 1996-06-01 |
| publisher | The Korean Space Science Society |
| record_format | Article |
| series | Journal of Astronomy and Space Sciences |
| spelling | doaj.art-804452d028cb4e5ea1ef8f1d9e07f3912024-01-02T13:13:43ZengThe Korean Space Science SocietyJournal of Astronomy and Space Sciences2093-55872093-14091996-06-011316371Photoelectric Observations of Close Binary AG Persei and its Apsidal Motion AnalysisK. H. Lee0J. H. Jeong1Department of Astronomy and Space Science, Chungbuk National UniversityDepartment of Astronomy and Space Science, Chungbuk National UniversityA total of 546 UBV photoelectric observations of AG Per was carried out from January to December in 1993 at Chungbuk National University Observatory. With our observations, UBV light curves were constructed, three minimum times of JDHel. 2449284.213, JDHel. 2449360.060, and JDHel. 2449363.192 were determined. The phase displacement of secondary minimum time ¥ä=-0.046 were determined and orbital eccentricity e=0.071 was calculated. Forty-five times of minimum light (including ours) were collected from the literature and plotted on O-C diagram. We analyzed these data and apsidal motion period of U=76.17 (years) was obtained. Using e and U for AG Per, the internal structure constant, log k2, was found to be -2.13.http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/1996/v13n1/OJOOBS_1996_v13n1_63.pdf |
| spellingShingle | K. H. Lee J. H. Jeong Photoelectric Observations of Close Binary AG Persei and its Apsidal Motion Analysis Journal of Astronomy and Space Sciences |
| title | Photoelectric Observations of Close Binary AG Persei and its Apsidal Motion Analysis |
| title_full | Photoelectric Observations of Close Binary AG Persei and its Apsidal Motion Analysis |
| title_fullStr | Photoelectric Observations of Close Binary AG Persei and its Apsidal Motion Analysis |
| title_full_unstemmed | Photoelectric Observations of Close Binary AG Persei and its Apsidal Motion Analysis |
| title_short | Photoelectric Observations of Close Binary AG Persei and its Apsidal Motion Analysis |
| title_sort | photoelectric observations of close binary ag persei and its apsidal motion analysis |
| url | http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/1996/v13n1/OJOOBS_1996_v13n1_63.pdf |
| work_keys_str_mv | AT khlee photoelectricobservationsofclosebinaryagperseianditsapsidalmotionanalysis AT jhjeong photoelectricobservationsofclosebinaryagperseianditsapsidalmotionanalysis |