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 233
that the period is much longer necessary to observe this pair at long intervals of than that found by Lewis, and, in fact, a parabolic time, but an accurate measurement of the separation orbit might be found to fit the observations with con- at the present time would serve as a check on the… … 2-00 2-24 2-70 2-40 3-74 2-30 3-35 Comparison of Observations with Ephemeris :— 2-29 2-92 3-64 Now, the change in angle at the beginning of the observations is too slow for rr'dd to be well deter- mined, and about 1886 the separation is too small. Yet the results are not satisfactory, for when we…
Double stars
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