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Image:
1999 May 20
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It will appear at dawn as 6 mag in late July. After that, it will fade while being higher.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
June 19 8 18.31 17 56.8 1.423 0.837 35 6.0 37.9 342.0 18:25 (123, 13)
June 26 8 12.29 21 51.6 1.534 0.772 26 5.7 33.8 338.1 18:27 (121, 4)
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Image:
1999 May 20
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It will move over the southern sky drastically after this and it turned to be in the evening sky in July.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
June 19 22 32.27 -23 47.2 0.711 1.471 115 10.3 116.7 225.3 4:46 (180, 79)
June 26 21 27.61 -35 32.0 0.549 1.468 137 9.8 201.5 234.4 3:16 ( 0, 90)
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Image:
1999 Apr. 14
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Brightening rapidly. It reached to 12.5 mag in early June.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
June 19 17 14.36 -6 8.5 0.697 1.690 160 11.7 14.9 229.9 23:24 (180, 61)
June 26 17 9.16 -7 25.9 0.674 1.659 157 11.3 16.4 220.0 22:51 (180, 63)
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Image:
1998 Dec. 13
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Not observable. It will appear again in September as 13 mag.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
June 19 4 59.81 18 18.5 2.693 1.714 12 11.8 41.3 87.3 5:36 (252, -6)
June 26 5 19.95 18 27.1 2.700 1.733 14 11.9 40.6 89.1 5:37 (250, -4)
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Only southern people can observe it. Norhtern people can never see it again.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
June 19 5 56.29 -63 1.3 8.682 8.678 86 12.1 6.6 100.1 18:25 ( 31, 29)
June 26 6 2.94 -63 11.4 8.733 8.732 86 12.1 6.6 105.3 5:37 (329, 30)
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Image:
1999 May 20
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In the Northern Hemisphere, it gets low in late June. After conjunction, it will appear again at dawn in mid October as 14.5 mag.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
June 19 9 18.76 25 6.3 3.089 2.520 47 12.5 24.0 148.5 18:25 (139, 17)
June 26 9 25.19 22 47.6 3.228 2.580 42 12.7 22.9 146.5 18:27 (133, 16)
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Image:
1999 Feb. 6
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Mother asteroid of Geminids. It will appear at dawn next week.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
June 19 4 5.16 29 48.9 0.989 0.415 23 12.7 39.4 312.5 5:36 (235, -3)
June 26 3 57.74 32 19.3 1.107 0.592 31 13.7 18.2 349.8 5:37 (228, 1)
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Image:
1999 May 20
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It will be 13-14 mag until September under good condition.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
June 19 23 58.37 -3 20.8 1.157 1.527 89 13.0 32.0 57.3 5:36 (196, 57)
June 26 0 10.27 -1 23.3 1.134 1.552 92 13.1 29.0 55.8 5:37 (188, 56)
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Image:
1998 Dec. 5
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Only southern people can observe it. It will appear again in 2000 August as 13 mag.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
June 19 8 13.97 -45 17.4 3.853 3.744 76 13.1 9.6 108.3 18:25 ( 58, 44)
June 26 8 20.34 -45 42.7 3.860 3.720 74 13.1 10.9 113.0 18:27 ( 56, 40)
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Image:
1999 May 20
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Small outburst happened and it looked stellar as 14.5 mag on June 5.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
June 19 14 46.33 -27 10.9 5.356 6.158 138 13.6 4.2 305.8 20:57 (180, 82)
June 26 14 44.79 -26 54.1 5.429 6.156 132 13.6 3.4 313.3 20:28 (180, 82)
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Image:
1999 June 4
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Although it will be low in October and November, Northern people can observe it as 14 mag until 2000 April. Then they can trace it until July as the comet gets low at dusk as 16.5 mag. Some visual observers reported it as 12 mag.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
June 19 16 36.19 58 2.5 3.258 3.532 97 14.3 30.4 266.6 22:44 (180, -3)
June 26 16 10.25 57 31.7 3.287 3.522 94 14.4 29.4 257.3 21:51 (180, -2)
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Image:
1998 Dec. 13
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Although it is getting higher in the morning sky, it will be only 18 deg high in July in the Northern Hemisphere.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
June 19 23 29.62 -31 19.0 4.915 5.281 105 14.4 11.2 175.4 5:36 (201, 86)
June 26 23 29.76 -32 39.0 4.865 5.329 111 14.4 11.7 181.8 5:15 (180, 88)
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Image:
1999 May 12
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After appearing again at dawn in December, it will be lower than 20 deg in the Northern Hemisphere.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
June 19 9 18.88 5 6.0 2.784 2.334 53 14.4 29.2 113.2 18:25 (125, 33)
June 26 9 31.44 3 44.5 2.868 2.360 50 14.5 29.3 113.7 18:27 (120, 31)
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Not yet observed in this return. We can observe it until November as 15-16 mag. But it should be much fainter than the ephemeris.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
June 19 2 56.76 33 48.2 2.822 2.127 38 15.2 32.5 60.7 5:36 (222, 5)
June 26 3 12.76 35 36.2 2.800 2.148 41 15.2 31.8 61.6 5:37 (219, 5)
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Image:
1999 May 1
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It will be low in late June and the current observation season will finish.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
June 19 9 55.13 12 6.1 2.320 2.004 59 15.4 34.7 112.2 18:25 (139, 33)
June 26 10 10.43 10 32.5 2.386 2.018 56 15.5 34.9 112.8 18:27 (134, 32)
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Not yet observed in this return. Now is the chance for the first observation. We can observe it as 14 mag from summer though winter under good condition.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
June 19 1 42.33 4 20.7 2.192 1.939 62 15.5 35.0 72.8 5:36 (227, 39)
June 26 1 58.03 5 31.4 2.120 1.921 64 15.4 35.0 73.6 5:37 (223, 40)
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Image:
1999 June 4
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New comet. Because it is far away, it keeps 15 mag until late 2000, while Northern people can observe it under good condition.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
June 19 21 41.53 36 44.0 4.869 5.119 98 15.5 4.9 12.7 3:55 (180, 18)
June 26 21 41.85 37 15.0 4.783 5.102 102 15.5 4.0 0.7 3:28 (180, 18)
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It was 15 mag on Apr. 21, about 3 mag brighter than the old ephemeris.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
June 19 18 49.83 -16 44.1 2.092 3.082 164 15.6 9.0 269.7 1:04 (180, 72)
June 26 18 45.31 -16 45.5 2.104 3.111 170 15.7 9.5 267.7 0:32 (180, 72)
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Image:
1999 June 4
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New comet. Because it is extremely far away, it keeps 15 mag until late 2000, while Northern people can observe it under good condition. Visual observers reported it as 14 mag.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
June 19 16 9.20 61 35.0 7.412 7.529 92 15.6 10.7 231.5 22:19 (180, -7)
June 26 16 1.41 60 44.5 7.429 7.524 91 15.6 10.9 225.1 21:44 (180, -6)
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Image:
1999 May 31
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New comet. The perihelion passage is in 2000 July, when it will be 13.5 mag. But the comet is in the southern sky. Northern people can observe it until October as 15 mag.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
June 19 19 26.43 -12 51.5 3.849 4.786 154 15.7 15.1 233.5 1:40 (180, 68)
June 26 19 20.32 -13 56.7 3.763 4.742 162 15.6 16.4 234.1 1:07 (180, 69)
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Not yet observed in this return. Now is the chance for the first observation. We can observe it as 15 mag from summer though winter under good condition.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
June 19 2 35.63 22 26.3 2.557 1.960 44 15.9 36.4 60.9 5:36 (226, 17)
June 26 2 51.91 24 28.4 2.499 1.948 46 15.8 36.5 61.7 5:37 (222, 17)
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Image:
1999 Jan. 16
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Appearing to be in the morning sky. The brightness after late February is unknown.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
June 19 16 30.12 -44 34.9 1.490 2.442 153 15.9 43.9 318.3 22:39 ( 0, 81)
June 26 16 13.90 -40 52.4 1.607 2.532 148 16.3 37.6 323.9 21:55 ( 0, 84)
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Image:
1999 June 1
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New comet. It will keep over 60 deg high until late November, when it will be 18 mag, so we can observe its fading out under good condition. It is 14.5 mag visually.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
June 19 18 51.76 24 59.2 1.504 2.287 129 16.0 29.3 342.0 1:06 (180, 30)
June 26 18 46.74 28 3.3 1.502 2.274 128 16.0 26.7 337.8 0:33 (180, 27)
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First return. Bright and now is the chance to recover. It is already observable in the Southern Hemisphere. Even in the Northern Hemisphere, the comet will be higher after this. It will be brightening slowly and reach to 15 mag in September.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
June 19 0 53.51 6 50.8 2.609 2.496 72 16.0 23.0 75.8 5:36 (211, 43)
June 26 1 3.81 7 27.9 2.530 2.496 76 16.0 22.0 77.0 5:37 (205, 44)
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Image:
1999 Apr. 14
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It was about 16.5 mag in March and April, a bit fainter than the ephemeris.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
June 19 15 50.25 -15 52.6 8.597 9.500 151 16.0 3.5 282.8 22:00 (180, 71)
June 26 15 48.72 -15 47.7 8.667 9.511 144 16.0 3.0 282.0 21:31 (180, 71)
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New comet. We can observe it until October when it fades to 17 mag and becomes low in the evening sky.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
June 19 15 2.18 12 36.6 4.610 5.268 125 16.0 4.3 310.6 21:12 (180, 42)
June 26 15 0.88 12 52.9 4.713 5.293 119 16.1 2.9 311.1 20:44 (180, 42)
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New comet. It will close to the earth down to 0.4 AU in October and reach to 11 mag. In the Northern Hemisphere, people can observe it until mid November. But because the comet is moving southwards, it will just over the horizon after the approach to the earth. It will not be obesrvable after 2000 February. On the other hand, southern people cannot see it until the approach.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
June 19 10 42.37 75 17.2 2.089 1.866 63 16.3 25.3 229.4 18:25 (174,-21)
June 26 10 13.43 73 15.0 2.088 1.790 58 16.1 23.2 219.5 18:27 (169,-21)
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Image:
1999 June 4
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Fading as expected. Observation is hard because it is in the Milky Way.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
June 19 18 3.17 12 29.0 1.882 2.769 143 16.5 46.7 251.3 0:18 (180, 42)
June 26 17 42.87 10 37.6 1.951 2.844 144 16.7 44.0 247.9 23:24 (180, 45)
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New comet. Northern people can observe it only until late July.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
June 19 16 26.14 11 15.3 1.101 1.989 139 16.7 38.6 205.1 22:36 (180, 44)
June 26 16 18.84 6 56.5 1.088 1.965 138 16.6 41.3 200.4 22:01 (180, 48)
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Image:
1999 May 31
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New comet. It will be over 45 deg high and 17 mag until mid November.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
June 19 20 32.68 -3 49.4 4.484 5.260 135 17.0 13.2 305.9 2:46 (180, 59)
June 26 20 27.38 -2 56.0 4.407 5.251 142 16.9 14.1 302.1 2:13 (180, 58)
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Image:
1999 May 31
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New comet. Although it is very high, it fades out rapidly as 17.5 mag in late June, 18.5 mag in late July.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
June 19 17 42.28 27 46.3 1.582 2.355 128 17.2 44.3 303.6 23:50 (180, 27)
June 26 17 23.46 30 12.9 1.674 2.404 124 17.4 37.7 298.0 23:04 (180, 25)
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New comet. Although it keeps 18 mag until the end of 2000, it is higher than 40 deg only until late July.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
June 19 16 19.16 -8 55.3 2.775 3.716 154 17.4 8.4 254.8 22:29 (180, 64)
June 26 16 15.60 -9 12.6 2.819 3.717 147 17.5 7.4 248.3 21:58 (180, 64)
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It was 17.7 mag on June 8, as bright as expected.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
June 19 17 56.06 -6 26.3 1.117 2.110 162 17.6 9.7 277.0 0:10 (180, 61)
June 26 17 51.61 -6 23.6 1.135 2.124 161 17.7 9.2 267.5 23:34 (180, 61)
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New retrograde asteroid. It will be overhead as 17 mag between 2000 January and March.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
June 19 15 49.06 3 16.3 1.987 2.846 140 17.7 47.9 281.0 21:58 (180, 52)
June 26 15 27.97 4 13.0 2.041 2.808 130 17.7 43.5 279.3 21:09 (180, 51)
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