2023年4月，月掩亮星

WCYue

四月 (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
23 Apr  2 23  2 13.3 D    1514 A1  6.2  6.2s  88+ 139     74 245  83N 109  49  89
   R1514 = 42 Leonis = 軒轅增卅五
      1514 = NSV 4828, 6.09 to 6.17, V
23 Apr 10 00 42 59.5 r    2283kB8  6.8* 6.8v  86- 137     32 139  85S 279 320 269
   *** A light curve is desired as    2283 is in the Kepler2 program {ID = 204134887}
      2283 = V0928 Sco, 6.74 to 6.76, V, Type ACV, Period 0.8030 days, Phase  73%
23 Apr 12 04 36 56.5 d    2617cK0  4.6  4.1   67- 110     39 170 -46N  47  58  49
      2617 is double: AB 5.1 5.9 0.26"  12.0, dT = +0.9sec
      2617 is a close double. Observations are highly desired
23 Apr 12 05 41 20.9 R    2617cK0  4.6  4.1   67- 109  -7 39 188  41N 320 312 322
      2617 is double: AB 5.1 5.9 0.26"  12.0, dT = -0.7sec
      2617 is a close double. Observations are highly desired
23 Apr 15 04 39 37.5 R    3102cA0  7.0  7.0   33-  70     23 128  81N 259 312 277
      3102 is double: ** 7.7 7.7 0.10"  90.0, dT = +0.23sec
      3102 has been reported as non-instantaneous (OCc1601). Observations are highly desired
23 Apr 17 12 15 10.8 r    3419SK0  4.2* 3.7   12-  40  78 45 230  69N 263 217 285
   R3419 = psi 1 Aquarii = 羽林軍增卅九
      3419 is triple: A,BC 4.4 9.9 49" 312.0, dT = -87sec : AD 4.4 13.5 116" 272.8, dT = -308sec
23 Apr 17 12 43 39.7 r    3425cB5  4.4  4.5v  12-  40  77 40 236  15S 167 116 190
   R3425 = psi 2 Aquarii = 羽林軍增卅八
      3425 is double: ** 5.4 5.4 0.10"  90.0, dT = -0.1sec
      3425 has been reported as non-instantaneous (OCc1639). Observations are highly desired
      3425 = psi 2 Aqr, 4.40, range 0.06, b, Type BE:, Period 1.073 days
23 Apr 22 20 20 43.5 D     566 B8  6.1  6.1s   6+  28      7 291  49S 114  45 125
       566 = NSV 15801, 5.74, range 0.01, U, Type ACV, Period 3.2509 days, Phase  55%
23 Apr 25 19 28 15.7 D    1008 A0  5.3  5.3s  27+  63 -10 53 288  70N  71 341  67
   R1008 = 49 Aurigae =
      1008 = NSV 3032, 5.05 to 5.27, V
23 Apr 25 20 36  1.8 r    1008 A0  5.3  5.3s  28+  63     38 289 -45N 317 234 312
   R1008 = 49 Aurigae =
      1008 = NSV 3032, 5.05 to 5.27, V
23 Apr 27 22 33 14   Gr   1263DF0  6.9  6.8S  47+  86     33 ** GRAZE: CA 14.4N; Dist.  1km in az.  40deg. [Lat = 22.27-0.77(E.Long-114.17)]
23 Apr 27 14 33 15   Gr   1263DF0  6.9  6.8S  47+  86     35 285  14N  28 309  14
   R1263 = 24 Cancri = 爟增九
      1263 is double: A,BC 6.9 7.5 5.6"  51.8
      1263 is a close double. Observations are highly desired
      1263 = NSV 4076, 6.51, , Type CST
23 Apr 27 23 20 42.1 D    1270cF0  6.1  5.9v  47+  87     24 287  79N  92  17  78
   R1270 = 28 Cancri (CX) = 爟增十
      1270 is double: ** 6.9 6.9 0.050" 350.0, dT = -0.03sec
      1270 has been reported as non-instantaneous (OCc1387). Observations are highly desired
      1270 = CX Cnc, 6.1, range 0.02, 5V, Type DSCTC, Period 0.096 days
23 Apr 28 16 10 28.2 d    1363cK0  5.2  4.7   55+  95  35 49  81  60N  77 159  61
   R1363 = xi Cancri = 爟增六
      1363 is double: AB 5.7 6.2 0.009" 218.2, dT = -0.02sec
23 Apr 28 20  6  7.7 D    1373dA2  6.5* 6.5   56+  97     78 268  62S 136  53 119
   R1373 = 90 H1. Cancri =
      1373 is double: AB 6.4 13.8 6.7" 257.6, dT = -11sec
      1373 is a close double. Observations are highly desired
23 Apr 30 18 56 54   d    1569kA2  6.9* 6.8V  74+ 118  -3 64 107  27N  51 116  30
   *** A light curve is desired as    1569 is in the Kepler2 program {ID = 248882918}
      1569 = HD 93273, 6.903, , Type VAR
23 Apr 30 19  6 49   Gr   1569kA2  6.9  6.8V  74+ 118  -5 68 ** GRAZE: CA 13.3N; Dist. 48km in az.  31deg. [Lat = 22.75-0.55(E.Long-114.17)]
23 Apr 30 23 26  0.8 D    1578cK0  6.9  6.2   75+ 120     50 262  67N  92  22  70
      1578 is double: AB 6.8      0.40"  10.0, dT = +0.2sec
      1578 is a close double. Observations are highly desired