Captain William Henry Smyth
Mar 22, 1833    No. 6 The Crescent, Bedford, England (map)
150mm f/17.6 refractor by Tully 1827

A neat double star close to the Præsepe on the Crab's body; and the "cloudy Præsepe" group is visible to the inquiring eye, at one-third of the distance between Pollux and Regulus. A 7, golden yellow; B 10, blue. This object is the southern member of a triangle, and is preceded by three pairs of stars, all of which were measured by Sir James South. The former registers of this are:

    S.  Pos. 52° 58'  Dist. 20".69  Ep. 1825.14
    Σ.       53° 51         20".52      1831.31
   [WDS      55°            20".80      2017   ]

The reductions of A show some slight aberrations from the common laws of precession, which are thus valued:

    P....  RA -0".10  Dec. -0".07
    B....     +0".06       -0".07
    T....     -0".02       -0".07
   [Gaia EDR3 -0".036237   -0".013881]

― A Cycle of Celestial Objects Vol II, The Bedford Catalogue, William Henry Smyth, 1844

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