참고문헌
- 심경진, 김강민, 박영득, 윤홍식, 1990, 천문학논총 5, 26-39
- 심경진, 박영득, 1992, 천문학논총 7, 255-260
- 심경진, 1996, 천문학 논총 12, 23-33
- 심경진, 문용재, 이청우, 장비호, 김연한, 김정훈, 2002, 천문학논총 17, 15-22
- Sim, Kyung Jin and Yun, Hong Sik, 1979, Pub. Kor. Nat. Astron. Obs. 4, 13
천문학논총 (Publications of The Korean Astronomical Society)
- 제18권1호
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- Pages.25-35
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- 2003
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- 1225-1534(pISSN)
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- 2287-6936(eISSN)
DOI QR Code
1987-2002년 태양흑점 관측자료 분석
THE RELATIVE SUNSPOT NUMBERS FROM 1987 TO 2002
- Kim, K.S. (Korea Astronomy Observatory) ;
-
Cho, K.S.
(Korea Astronomy Observatory)
;
-
Park, Y.D.
(Korea Astronomy Observatory)
;
-
Moon, Y.J.
(Korea Astronomy Observatory)
;
- Kim, Y.H. (Korea Astronomy Observatory) ;
- Sim, K.J. (Korea Astronomy Observatory)
- 발행 : 2003.12.31
초록
In this paper, we have re-examined the relative sunspot numbers from June 1987 to December 2002 observed at Korea Astronomy Observatory. For this we determined conversion factors (K) for each year data to derive the relative sunspot numbers. The estimated conversion factor ranges from 0.57 to 1.09 and has a trend to decrease with time, which seem to depend on the several effects such as observational system, observation methods, and experience of an observer. Our analysis shows that the newly-determined relative sunspot numbers are in much better agreements with the international sunspot numbers than the previously-determined ones in which the conversion factors were determined only four times. This result implies that we should determine the conversion factor for each year data. From these investigations, we also identified one and half solar cycles form our relative sunspot number.