Andrew Cooper
Feb 26, 2020    Waikoloa, HI (map)
28cm f/10 SCT, NexStar 11" GyPSy @ 80x
Seeing: 5 Transparency: 7 Moon: 10%

Ivory, the 8th magnitude 1.6" companion not seen

Captain William Henry Smyth
Aug 29, 1838    No. 6 The Crescent, Bedford, England (map)
150mm f/17.6 refractor by Tully 1827

A close double star, over the Ram's head, nearly in mid-distance between α Trianguli and α Arietis, and it has several followers exactly on the parallel. A 6½, yellow; B 8½, pale grey. This is one of Σ.'s discoveries, No. 208 of the Dorpat Catalogue; and so beautiful an object, that John Herschel calls it a miniature of ε Bootis. It has been well looked to by astrometers, and the several results for comparison are:

    H.  Pos. 25°28'  Dist. 2".13  Ep. 1830.79
    Σ.       25°17'        l".98      1833.05
    D.       27°50'        2".±       1833.36
   [WDS     349°           1".30      2018   ]

Though in our present knowledge of these stars, there appears to be a relative fixity, proper motions in space are attributed to the large one, of which the several amounts are thus given:

   P.... AR  0".00  Dec. +0".20
   B....    +0".20       -0".03
   T....    +0".02       -0".22
  [Gaia DR2 +0".126528   +0".013206]

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

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