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Catalogue of double stars from observations made at the Royal Observatory, Greenwich, with the 28-inch refractor during the years 1893-1919 (1921)
Royal Observatory, Greenwich, Dyson, Frank Watson, 1868-1939 · London, H. M. Stationery Off. · leaf 249
228 Debits of 25 Double Stars. 12,290. ^ 80 B.D. 4°, 4994. P.M. "-492 in i02°-9 (Porter). E.A. 23I1 15^1 ^s. Mags. 8-2, 9-1. Par. Abs. Trig, "-on (4). Spec. "-030'. Dec. +5° o'. Spec. G8. Apparent Orbit of p 80. The latest measures of this pair show an angular … Ephemeris.Double stars
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