sun analemma
Taken by Matthew Chin on December 22, 2014 @
Hong Kong
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Details:
Analemma (日行跡) and 24 Solar Terms (二十四節氣) in Hong Kong, 07:30am (UTC+8), in 2014. (Photo copyright by Matthew Chin, Hong Kong)
The figure-8 shaped curve was taken as the path of the Sun at 07:30am (HKT, UTC+8) in the year 2014, highlighting with the 24 solar terms.
Due to cloudy or rainy days, the image may be taken before / after the solar term day and are marked +/- nd(ays).
That year's two equinoxes on March 21 (0° longitude) and September 23 (180° longitude) correspond to the mid-points but not the cross-over point, on the curve.
While summer solstice on June 21(90° longitude) and winter solstice on December 22 (270° longitude) are located at the top-left and bottom-right on the curve respectively.
The solar term days are listed as below (based on HKT) for year 2014 by HK Observatory.
2014年 二十四節氣表 (Solar Term):
English: http://www.hko.gov.hk/gts/astron2014/Solar_Term_2014_e.htm
Chinese: http://www.hko.gov.hk/gts/astron2014/Solar_Term_2014_uc.htm
Photographer's website:
No URL provided.
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