十一月(香港時間)
日 期 時 間 P 恆星 Sp Mag Mag % Elon Sun Moon CA PA VA AA
年 月 日 時 分 秒 編號 D v r V ill Alt Alt Az o o o o
21 Nov 20 23 27 42.6 R 709MB3 4.3 v 98- 166 67 83 41S 210 297 216
R709 = tau Tauri = 天廩增一
709 is triple: Aa,Ab 4.3 7.0 0.33" 359.4, dT = +1sec : AB 4.2 7.0 63" 214.0, dT = -230sec
709 has been reported as non-instantaneous (S 455). Observations are highly desired
709 = HIP 21881, 4.27, range 0.00, 5V, Type VAR, Period 2.95657 days
Distance of 709 to Terminator = 12.6"; to 3km sunlit peak = 3.6"
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