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It is observable at 6 mag until early September. But it will be getting lower rapidly.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
July 31 13 59.23 27 6.8 1.561 1.587 72 6.5 54.1 220.0 18:44 (159, 25)
Aug. 7 13 43.25 22 23.9 1.636 1.507 64 6.4 48.0 215.4 18:49 (146, 25)
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It locates visible all night, though it is low in the morning still now. It keeps observable after this in the Northern Hemisphere. It has been fading as expected since mid May, and keeps brighter than 12 mag until October.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
July 31 11 18.24 59 23.9 2.039 1.587 49 9.3 15.9 61.9 18:44 (152,-17)
Aug. 7 11 31.60 60 15.6 2.117 1.672 50 9.6 16.5 63.2 18:49 (152,-19)
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It suddenly became diffused in July, but it was condensed still in mid July by CCD. It turns to be in the evening sky after September, then it keeps good condition in the evening sky. However, it will be observable visually only until the end of August.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
July 31 22 8.85 -8 22.3 0.630 1.613 156 10.1 142.7 278.2 1:37 (180, 63)
Aug. 7 21 8.18 -6 0.4 0.702 1.709 169 10.9 115.8 279.4 0:09 (180, 61)
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It is observable only in the Southern Hemisphere, and only until mid August. Then it will appear at dawn in late October at 13.5 mag.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
July 31 10 46.05 -7 39.8 2.587 1.925 40 10.4 12.0 101.2 18:44 ( 96, 22)
Aug. 7 10 51.45 -7 57.9 2.769 2.026 35 10.8 11.6 104.2 18:49 ( 92, 16)
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It keeps locating low in the morning sky until the end of August while being fading gradually. It will start to be higher after September, but when it will be fainter than 12 mag.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
July 31 8 2.30 54 45.7 2.668 1.960 37 11.1 36.7 104.7 5:28 (221,-28)
Aug. 7 8 28.85 53 36.9 2.718 2.018 38 11.2 34.3 108.1 5:22 (222,-28)
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The condition is worst in this return. It is not observable around the perihelion passage. It will appear at dawn in autumn, when it will already fade to 15 mag.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
July 31 7 55.83 12 58.1 2.413 1.438 12 12.0 44.9 105.0 5:28 (258, -6)
Aug. 7 8 15.95 11 34.8 2.464 1.498 13 12.5 42.7 106.4 5:22 (259, -5)
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Fading now. It will be fainter than 13 mag in September. (944) Hidalgo will through the coma of this comet on Aug. 17.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
July 31 2 24.76 9 43.3 1.452 1.786 90 12.1 18.0 71.6 5:28 (187, 45)
Aug. 7 2 32.12 10 19.1 1.425 1.830 95 12.3 14.7 71.9 5:22 (182, 45)
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No outburst was reported in July.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
July 31 0 31.54 12 3.3 5.209 5.724 115 13.3 1.8 329.7 3:56 (180, 43)
Aug. 7 0 30.85 12 12.4 5.115 5.724 122 13.2 2.2 298.0 3:28 (180, 43)
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It will be visible visually soon. It is observable in good condition as bright as 12 mag in autumn.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
July 31 2 13.47 16 19.6 1.851 2.133 91 13.9 23.8 74.5 5:28 (183, 39)
Aug. 7 2 24.45 17 1.1 1.763 2.115 95 13.6 22.7 75.9 5:21 (180, 38)
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The brightening evolution is slower than usual. It will be October when it becomes visible visually. In the Northern Hemisphere, it keeps observable until 2005 spring when it reaches to 8 mag.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
July 31 8 32.56 69 4.5 4.222 3.666 50 15.1 16.4 88.5 5:28 (206,-35)
Aug. 7 8 54.53 69 6.1 4.110 3.588 52 15.0 17.2 89.3 5:22 (206,-35)
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It will fade out gradually, and keeps observable brighter than 17 mag until the end of 2004.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
July 31 0 25.54 16 44.0 4.169 4.687 114 15.0 14.7 263.9 3:51 (180, 38)
Aug. 7 0 17.99 16 29.7 4.108 4.737 122 15.0 16.5 261.3 3:16 (180, 38)
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It keeps 16 mag until October. In the Northern Hemisphere, it keeps to be locating only around 30 deg high.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
July 31 19 54.56 -22 32.9 1.360 2.363 168 15.7 12.9 223.3 23:16 (180, 78)
Aug. 7 19 50.35 -23 36.8 1.374 2.353 160 15.6 11.6 220.8 22:44 (180, 79)
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It keeps around 16 mag until November.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
July 31 1 42.41 -0 29.6 3.052 3.446 104 15.7 4.2 95.5 5:07 (180, 55)
Aug. 7 1 43.91 -0 34.8 2.978 3.467 110 15.6 2.5 115.6 4:41 (180, 56)
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It is observable at 13.5 mag in good condition in October and November. No observation has been reported since 2003 December. It will through the coma of 88P/Howell on Aug. 17.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
July 31 2 30.00 6 46.8 2.350 2.572 90 15.8 17.0 38.6 5:28 (190, 48)
Aug. 7 2 34.65 8 21.9 2.220 2.531 95 15.7 16.6 33.1 5:22 (183, 47)
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It locates low in the evening sky until mid September, then it becomes unobservable for a while. But it will be observable again at 15 mag after next February for a long time.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
July 31 13 33.70 0 33.4 3.109 2.986 73 15.7 17.1 128.7 18:44 (139, 47)
Aug. 7 13 40.21 -0 42.0 3.185 2.976 68 15.8 18.1 126.6 18:49 (130, 44)
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It is unexpectedly bright, 16.5 mag. It keeps 16.5 mag until mid August.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
July 31 20 6.09 -16 40.3 1.011 2.020 171 16.4 6.4 223.8 23:27 (180, 72)
Aug. 7 20 4.23 -17 12.4 1.030 2.025 164 16.5 5.5 214.4 22:58 (180, 72)
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It is extremely diffused after June. It was reported as bright as 12 mag visually, however, it was reported so faint as 16-18 mag by CCD.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
July 31 0 50.18 66 20.0 2.163 2.288 83 16.6 16.9 302.3 4:15 (180,-11)
Aug. 7 0 31.72 67 12.2 2.195 2.395 88 17.0 17.7 289.6 3:30 (180,-12)
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It is expected to be observable at 16 mag in good condition in autumn. But it was faint as 18.5 mag in late July. So it is probably 1.5 mag fainter than this ephemeris.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
July 31 0 1.52 -0 21.9 2.094 2.832 127 16.9 3.8 23.0 3:26 (180, 55)
Aug. 7 0 1.70 0 0.2 2.006 2.810 134 16.7 2.9 345.9 2:59 (180, 55)
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It is observable until November when it becomes fainter than 18 mag.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
July 31 1 5.35 2 37.8 2.810 3.325 111 16.8 3.1 113.9 4:30 (180, 52)
Aug. 7 1 6.23 2 26.0 2.755 3.359 118 16.8 2.3 157.0 4:03 (180, 53)
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It keeps 17 mag until September.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
July 31 2 23.75 9 3.3 1.222 1.608 91 17.0 30.3 85.1 5:28 (187, 46)
Aug. 7 2 37.44 9 15.8 1.190 1.627 94 17.0 27.7 87.8 5:22 (184, 46)
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It will be fading slowly until November when it becomes fainter than 18 mag.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
July 31 18 32.10 44 6.1 5.975 6.408 110 17.2 5.4 256.8 21:54 (180, 11)
Aug. 7 18 28.91 43 54.3 6.031 6.441 109 17.3 5.0 245.0 21:23 (180, 11)
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It is observable at 16.5 mag in good condition in autumn.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
July 31 1 23.49 14 2.2 3.022 3.405 103 17.4 7.0 61.9 4:48 (180, 41)
Aug. 7 1 26.07 14 22.9 2.914 3.390 109 17.3 5.3 60.0 4:23 (180, 41)
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It will be 12-13 mag in winter, locating high in the evening sky. It keeps observable until that time in good condition while the comet is getting brighter.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
July 31 2 44.13 6 19.3 2.678 2.822 87 17.6 15.5 74.0 5:28 (195, 48)
Aug. 7 2 50.93 6 47.9 2.549 2.782 92 17.3 14.5 74.4 5:22 (189, 48)
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It will be brightening gradually after this, and reach to 15 mag in 2005 spring.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
July 31 19 10.98 -2 55.9 3.653 4.580 152 17.4 24.1 266.8 22:32 (180, 58)
Aug. 7 18 59.95 -3 6.8 3.667 4.540 145 17.4 23.1 265.7 21:53 (180, 58)
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It keeps brighter than 18 mag until 2005 spring.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
July 31 13 54.23 49 3.4 6.453 6.155 68 17.4 9.0 203.8 18:44 (166, 4)
Aug. 7 13 52.07 48 6.5 6.532 6.173 65 17.5 8.4 197.4 18:49 (160, 3)
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It keeps around 18 mag for a long time until 2005 summer.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
July 31 16 43.48 44 11.7 6.703 6.905 97 17.5 11.5 235.4 20:05 (180, 11)
Aug. 7 16 37.75 43 23.9 6.767 6.911 93 17.5 10.9 229.5 19:32 (180, 12)
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It reaches to 17.5 mag in October.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
July 31 2 55.13 25 57.0 3.955 3.896 79 17.9 10.9 98.7 5:28 (193, 28)
Aug. 7 3 0.43 25 43.2 3.864 3.905 84 17.9 9.9 103.5 5:22 (189, 29)
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