本帖最後由 WCYue 於 2021-6-19 13:34 編輯
十二月(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 Dec 01 04 25 25.1 r 1921 K3 5.9 5.1 16- 47 16 102 65N 320 25 299
R1921 = 65 Virginis = 角宿增一
21 Dec 01 05 11 17.5 R 1924cF3 5.8 5.5 16- 47 26 108 72N 313 15 292
R1924 = 66 Virginis = 角宿增十六
1924 is double: AB 5.8 0.025" 233.2, dT = -0.01sec
1924 is a close double. Observations are highly desired
21 Dec 15 23 16 25.2 d 422 B7 5.5 5.6 89+ 141 66 257 35N 17 307 32
R422 = sigma Arietis = 左更四
21 Dec 17 20 35 50.5 d 657pA7 5.3 5.1s 98+ 163 56 83 60N 52 135 60
R657 = 67 Tauri = 天街一
*** A light curve is desired as 657 is in the Kepler2 program {ID = 210950988}
657 is quadruple: BF 5.3 13.7 109" 215.7, dT = -298sec : B,CD 5.3 9.5 160" 349.7, dT = +211sec : BA 5.3 4.2 339" 354.0, dT = +512sec
657 = NSV 1594, 5.26 to 5.29, V, Type DSCT:
21 Dec 17 20 47 15.2 D 656SA7 4.2 4.1S 98+ 163 58 83 39N 31 114 38
R656 = kappa Tauri = 天街增二
656 is multiple: Aa,Ab 5.2 5.2 350.0, dT = -0.38sec : ** 5.2 5.2 0.10" 110.0, dT = +0.06sec : AE 4.2 13.1 147" 268.5, dT = -262sec : A,CD 4.2 10.6 175" 176.4, dT = -478sec
656 has been reported as non-instantaneous (OCc 327). Observations are highly desired
656 = NSV 1593, 4.22, , Type DSCT:
Distance of 656 to Terminator = 17.4"; to 3km sunlit peak = 6.6"
月掩角宿增一
月掩角宿增十六
月掩左更四
月掩天街一
月掩天街增二
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