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A Transit of Venus Possibly Misinterpreted as an Unaided-Eye Sunspot Observation in China on 9 December 1874 |
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| Authors: | Hayakawa Hisashi Sôma Mitsuru Tanikawa Kiyotaka Willis David M Wild Matthew N Macdonald Lee T Imada Shinsuke Hattori Kentaro Richard Stephenson F |
| Institution: | 1.Key Laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Sciences, Beijing, 100101, China ;2.School of Astronomy and Space Sciences, University of Chinese Academy of Sciences, 19 A Yuquan Road, Shijingshan District, Beijing, 100049, China ; |
| Abstract: | Solar Physics - Large sunspots can be observed with the unaided eye under suitable atmospheric seeing conditions. Such observations are of particular value because the frequency of their appearance... |
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