1.

図書
図書
1. Astrographic chart (Zona +65° no.1-40 - Zona +87°-90°)
Royal observatory, Greenwich
出版情報: [s.l.] : Royal Greenwich Observatory
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2.

図書
図書
2. Second ten-year catalogue of 6892 stars for the epoch 1890・0 from observations with the transit-circle made at the Royal observatory, Greenwich
Royal Greenwich Observatory
出版情報: Edinburgh : Printed for Her Majesty's Stationery office by Neill & co., limited, 1900
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3.

雑誌
雑誌
3. Astronomical and magnetical and meteorological observations made at the Royal Observatory, Greenwich, in the year ...
Royal Greenwich Observatory
出版情報: London : H.M.S.O.
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