THE ORBITAL MOTION OF SIGMA-1785

[1] A GRAPHICAL SOLUTION OF ORBITS OF VISUAL BINARIES [J]. ASTRONOMICAL JOURNAL, 1946, 52 (03) : 84 - 86

[2] HERTZSPRUNG E, 1920, PUB ASTROPH OBS POTS, V75, P47

[3] KUIPER GP, 1938, AP J, V88, P494

[4] RABE W, 1927, A N, V231, P123

[5] STRAND KA, 1942, A J, V49, P169

[6] VANBIESBROECK G, 1927, YERKES OBS PUB 1, V5, P223

[1] A GRAPHICAL SOLUTION OF ORBITS OF VISUAL BINARIES [J]. ASTRONOMICAL JOURNAL, 1946, 52 (03) : 84 - 86

[2] HERTZSPRUNG E, 1920, PUB ASTROPH OBS POTS, V75, P47

[3] KUIPER GP, 1938, AP J, V88, P494

[4] RABE W, 1927, A N, V231, P123

[5] STRAND KA, 1942, A J, V49, P169

[6] VANBIESBROECK G, 1927, YERKES OBS PUB 1, V5, P223