Relative Sunspot Number Observed from 2002 to 2011 at ButterStar Observatory

The ButterStar Observatory at the Dongducheon High School has been working for photographic observations of the Sun since October 16, 2002. In this study, we observed the Sun at the ButterStar observatory for 3,364 days from October 16, 2002 to December 31, 2011, and analyzed the photographic sunspo...

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Bibliographic Details
Main Authors: Sung-Jin Oh, Heon-Young Chang
Format: Article
Language:English
Published: The Korean Space Science Society 2012-06-01
Series:Journal of Astronomy and Space Sciences
Subjects:
Online Access:http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/2012/v29n2/OJOOBS_2012_v29n2_103.pdf