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2013年4月份，月掩星
四月份精選 (5 cm 口徑望遠鏡可見)，預報採用香港標準時間
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
13 Apr 12 19 35 32 d 423 F5 6.3 6.1 4+ 23 10 284 80S 83 14 102
13 Apr 14 20 25 32 d 691cG5 6.3 5.9 15+ 46 21 284 46N 40 327 50
691 is double: AB 6.4 0.058" 121.8
691 is a close double. Observations are highly desired
13 Apr 19 21 3 51 d 1318 A1 5.9 5.8 60+ 101 63 252 67S 127 63 112
R1318 = 50 Cancri = A2 Cancri = 鬼宿增七
13 Apr 22 19 31 5 d 1623 A0 5.4 5.4 86+ 137 -11 52 122 86S 112 164 89
R1623 = 69 Leonis = 明堂增五
13 Apr 28 00 42 21 r 2303SB2 4.8 4.9 95- 154 43 152 67N 302 329 289
2303 is triple: CE 4.5 6.6 0.13" 347.0 : CA 4.5 2.6 13.5" 199.7
2303 is a close double. Observations are highly desired
13 Apr 28 00 42 29 R 2302SB0 2.6 2.7s 95- 154 43 153 68N 301 328 288
R2302 = Acrab = beta Scorpii = 房宿四
2302 is quadruple: AB 2.6 0.001" 291.1 : AB 2.6 10.6 0.31" 186.0 : AC 2.6 4.5 13.5" 19.7
2302 is a close double. Observations are highly desired
2302 = NSV 7424, 2.61 to 2.67, V
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