A general catalogue of double stars within 121⁰ of the north pole (1906)
Burnham, S. W. (Sherburne Wesley), 1838-1921 · [Washington] Carnegie Institute of Washington · leaf 332
.. Lewis (Man. Not. 1X531, 403) ... ] 5652. o, Ursae Majoris. p 1077. This interesting systemwas discovered with the 36-inch. The measures at Mt.Hamilton were sufficient to show that it was a binary, sincethe proper motion of the principal star would have beenapparent, after a short interval, in… … Scalea Ursae Majoris y31077 the companion had the same movement in space, as otherwiseit would have been recorded as a double star long before.The orbital motion is retrograde, and thus far about 2rS P^year. With a much nearer approach it will be difficult, if notimpossible, to measure with the…
Stars · Double stars
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