New Times of Minimum and a Period Change of GO Cygni
Two colour (B & V) photoelectric observations of EB-type eclipsing binary GO Cyg were carried out for 15 nights during October and December 1996. Three new times of minimum derived from our own observations are presented. With these and previously published times, the period variation is studied...
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Format: | Article |
Language: | English |
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The Korean Space Science Society
1998-06-01
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Series: | Journal of Astronomy and Space Sciences |
Online Access: | http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/1998/v15n1/OJOOBS_1998_v15n1_69.pdf |
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author | Kyu-Dong Oh Kee-Suk Ra |
author_facet | Kyu-Dong Oh Kee-Suk Ra |
author_sort | Kyu-Dong Oh |
collection | DOAJ |
description | Two colour (B & V) photoelectric observations of EB-type eclipsing binary GO Cyg were carried out for 15 nights during October and December 1996. Three new times of minimum derived from our own observations are presented. With these and previously published times, the period variation is studied, and a continuous period increase of dP/dt ~ 1.51 times 10^(-7) d/yr is estimated from the quadratic ephemeris. |
first_indexed | 2024-03-08T07:13:26Z |
format | Article |
id | doaj.art-5a8e69978b6a430da76a16ee3490b27e |
institution | Directory Open Access Journal |
issn | 2093-5587 2093-1409 |
language | English |
last_indexed | 2024-03-08T07:13:26Z |
publishDate | 1998-06-01 |
publisher | The Korean Space Science Society |
record_format | Article |
series | Journal of Astronomy and Space Sciences |
spelling | doaj.art-5a8e69978b6a430da76a16ee3490b27e2024-02-03T01:56:45ZengThe Korean Space Science SocietyJournal of Astronomy and Space Sciences2093-55872093-14091998-06-011516974New Times of Minimum and a Period Change of GO CygniKyu-Dong Oh0Kee-Suk Ra1Department of Earth Science Education, Chonnam National UniversityHaenam High School, ChonnamTwo colour (B & V) photoelectric observations of EB-type eclipsing binary GO Cyg were carried out for 15 nights during October and December 1996. Three new times of minimum derived from our own observations are presented. With these and previously published times, the period variation is studied, and a continuous period increase of dP/dt ~ 1.51 times 10^(-7) d/yr is estimated from the quadratic ephemeris.http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/1998/v15n1/OJOOBS_1998_v15n1_69.pdf |
spellingShingle | Kyu-Dong Oh Kee-Suk Ra New Times of Minimum and a Period Change of GO Cygni Journal of Astronomy and Space Sciences |
title | New Times of Minimum and a Period Change of GO Cygni |
title_full | New Times of Minimum and a Period Change of GO Cygni |
title_fullStr | New Times of Minimum and a Period Change of GO Cygni |
title_full_unstemmed | New Times of Minimum and a Period Change of GO Cygni |
title_short | New Times of Minimum and a Period Change of GO Cygni |
title_sort | new times of minimum and a period change of go cygni |
url | http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/1998/v15n1/OJOOBS_1998_v15n1_69.pdf |
work_keys_str_mv | AT kyudongoh newtimesofminimumandaperiodchangeofgocygni AT keesukra newtimesofminimumandaperiodchangeofgocygni |