2020年1月，月掩亮星

WCYue

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
20 Jan  7 22 52 24.3 d     639kF3  6.1  5.9   88+ 140     72 262  67N  54 339  63
   R639 = 85 H1. Tauri
   *** A light curve is desired as     639 is in the Kepler2 program {ID = 210725815}
20 Jan  8 01 56 10.6 d     654pF4  6.0* 5.8   89+ 141     31 280  55N  42 327  50
   *** A light curve is desired as     654 is in the Kepler2 program {ID = 210745602}
       654 is double: ** 6.8 6.8 0.10"  71.0, dT = +0.26sec
       654 has been reported as non-instantaneous (OCc 921). Observations are highly desired
20 Jan  8 03 49 49.9 d     668SK0  3.5* 3.0   89+ 142      6 288  42N  30 322  38
   R668 = Ain = epsilon Tauri = 畢宿一
       668 is triple: Aa,Ab 3.6 6.0 0.20" 108.0, dT = +0.13sec : AB 3.5 10.6 191" 269.0, dT = -316sec
       668 is a close double. Observations are highly desired
20 Jan 14 00 59 29.0 r    1514 A1  6.2  6.2s  89- 140     57  97  42N 334  46 312
   R1514 = 42 Leonis
      1514 = NSV 4828, 6.09 to 6.17, V
20 Jan 16 06 13 34.2 R    1773wK1  5.0  4.4s  68- 111 -12 65 223  33N 348 309 325
   R1773 = 16 Virginis = 謁者
      1773 is double: AB 5.1 12.9 139"  14.0, dT = -417sec
      1773 = NSV 5558, 4.94 to 4.99, V
20 Jan 23 06  5 28.8 r    2714kA3  6.2  6.1    4-  22      5 118  47S 221 284 227
   R2714 = 26 Sagittarii
   *** A light curve is desired as    2714 is in the Kepler2 program {ID = 215633526}
20 Jan 28 19  7 19.9 D    3428SA0  5.0  5.0s  11+  39     25 247  31N  14 314  38
   R3428 = psi 3 Aquarii = 羽林軍卅七
      3428 is triple: AB 5.0 9.0 1.5" 129.5, dT = -2.2sec : AC 5.0 13.1 133" 231.0, dT = -365sec
      3428 is a close double. Observations are highly desired
      3428 = NSV 14491, 4.97 to 5.00, V
20 Jan 30 20 36 12.1 d     106kK0  6.6  5.9   26+  61     28 257  68N  48 343  71
   *** A light curve is desired as     106 is in the Kepler2 program {ID = 220194189}