1.

図書
図書
1. Catalogue of stars observed at the United States Naval Observatory during the Years 1845 to 1871
Yarnall, M.
出版情報: Washington : Government Printing Office, 1873
シリーズ名: Washington observations ; 1871 appendix 3
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2.

図書
図書
2. Zones of stars observed at the United States Naval Observatory with the mural circle in the years 1846, 1847, 1848, and 1849
Coffin, J. H. C.
出版情報: Washington : Government Printing Office, 1872
シリーズ名: Washington observations ; 1869 appendix 2
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