2013年5月份,月掩星
五月份精選 (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 May 01 05 36 38 R 2826cF0 3.9 3.8v 68- 111 -4 49 190 64N 286 277 294
R2826 = rho Sagittarii = 建五
2826 is double: ** 4.2 6.7 0.036" 325.5**
2826 has been reported as non-instantaneous (OCc 543). Observations are highly desired
2826 = rho 1 Sgr, 3.9 to 3.94, V, Type DSCTC, Period 0.05 days
13 May 2 06 19 35 r 2969SA5 3.1 2.6 56- 97 6 53 186 85S 251 246 264
R2969 = Dabih Major = beta Capricorni = 牛宿一
2969 is multiple: Aa,Ab 3.1 4.9 0.011" 180.7 : AD 3.2 13.7 117" 291.7 : AB 3.2 6.1 206" 266.9 : AC 3.2 8.8 225" 135.1
2969 is a close double. Observations are highly desired
13 May 3 02 1 9 r 3093 G8 4.5 4.0 46- 86 12 107 63N 280 344 297
R3093 = nu Aquarii = 天壘城十
13 May 5 04 52 53 r 3370cG8 6.2 5.8 25- 59 31 108 40S 200 262 223
3370 is double: AB 6.2 0.08" 146.2
3370 is a close double. Observations are highly desired
13 May 21 22 43 50 D 1815SK2 4.7 4.0 83+ 131 51 221 66N 86 48 61
R1815 = chi Virginis = 進賢增八
1815 is multiple: ** 4.8 8.8 0.10" 214.0** : AB 4.8 8.8 176" 135.9 : AC 4.8 10.6 223" 109.9 : AD 4.8 9.0 321" 332.2
1815 has been reported as non-instantaneous (OCc 760). Observations are highly desired
13 May 22 16 52 52 d 1925SB1 1.0 1.1e 90+ 142 27 10 107 57N 76 141 53
R1925 = Spica = alpha Virginis = 角宿一
1925 is triple: AB 1.0 12.0 153" 33.0 : AC 1.0 10.5 367" 60.9
1925 = alf Vir, 0.95, range 0.1, V, Type EA+BCEP, Period 4.014604 days, Phase 54 %
13 May 22 17 41 16 r 1925SB1 1.0 1.1e 90+ 143 16 21 112 -46N 333 33 310
R1925 = Spica = alpha Virginis = 角宿一
1925 is triple: AB 1.0 12.0 153" 33.0 : AC 1.0 10.5 367" 60.9
1925 = alf Vir, 0.95, range 0.1, V, Type EA+BCEP, Period 4.014604 days, Phase 54 %
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