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Great Southern Comet of 1887 : ウィキペディア英語版 | Great Southern Comet of 1887
The Great Southern Comet of 1887, or C/1887 B1 using its International Astronomical Union designation, was a bright comet seen from the Southern Hemisphere during January 1887. Later calculations indicated it to be part of the Kreutz Sungrazing group. A curious feature of the comet was that few, if any observations were made of a cometary head or nucleus. As a result, some older astronomical texts refer to it as the "Headless Wonder".〔Bortle, J. (The Bright Comet Chronicles ), ''International Comet Quarterly'', 1998〕 ==Discovery==
The comet was officially discovered by astronomer John Macon Thome at Córdoba, Argentina, on January 19, at which point it was located in the constellation Grus.〔Kronk, G. W. ''Cometography'', v2, CUP, 2003, p.588〕 However, correspondence from William Henry Finlay suggests that it may also have been seen from Blauwberg, South Africa, on January 18.〔 At the time of discovery the comet had already passed perihelion a week earlier, and its closest approach to Earth had been a month earlier.
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