Credit: ©The Royal Society
    Image number: RS.15509

    Astronomical tables and diagram

    Date
    22 April 1671
    Creator
    Unknown, Artist
    Object type
    Archive reference number
    Manuscript page number
    p1
    Material
    Dimensions
    height (page): 298mm
    width (page): 195mm
    Subject
    Description
    This appears to be a paper by Ismaël Boulliau (1605-1694), who had compared the eclipse of Spica Virginis on 22 April 1671 (N.S.) with the tables in his Astronomia Philoloaica (1645), with Kepler's Rudolphine Tables and with Hevelius's calculated positions. This paper was read at the meeting of the Royal Society on 15 June 1671. According to a letter by Henry Oldenburg to Johannes Hevelius on 12 June 1671, this computation had been sent by Boulliau to Hevelius.

    Boulliau was elected a Fellow of the Royal Society in April 1667, but was not a member of the French Royal Academy of Sciences.
    Object history
    15 June 1671, ‘There was produced a Latin paper of Monsr. Bullialdus concerning the late appulse of the moon to spica virginis; which happened 12 April, 1671, O.S. and comparing his calculus with the observation of Monsr. Hevelius. It was ordered to be entered in the Register-book’ (Birch 2:484).
    Related fellows
    Ismael Bullialdus (1605 - 1694, French) , Clergyman
    Associated place
    <The World>
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          > United Kingdom
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       > Europe
          > France
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