Observations of Asteroids and Comet II.
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Prof. J. W. Gilliss
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Article
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1865
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John Wiley and Sons
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English
โ 136 KB
๐ 2 views
Communicated by Prof. J. U'. Gilliss, Director nf tlie Obserwtory. The quantities i n tlie coluinns P a , A d are the iiieasures of lfie instruments, tfiose i n 01, d are corrected for refraction and parallax.