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Now it is so bright as 10.4 mag (Sept. 6, Juan Jose Gonzalez). Getting lower graudally in the evening sky. It will be unobservable in late September in the Southern Hemisphere, or in mid October in the Northern Hemisphere. In the Southern Hemisphere, it will appear in the morning sky at 9 mag in 2013 February, then it keeps observable in good condition while fading slowly. In the Northern Hemisphere, it is hardly observable after 2013.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept. 8 14 44.87 15 30.7 2.811 2.369 54 10.4 19:10 (125, 18)
Sept.15 14 53.34 12 28.3 2.819 2.316 50 10.3 19:15 (118, 16)
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It brightened rapidly. Now it is very bright as 10.7 mag (Aug. 26, Man-To Hui). It has a large coma. It keeps observable in the morning sky all through this apparition, although it locates somewhat low. It keeps bright at 10-11 mag until mid September.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept. 8 7 55.57 14 31.3 1.349 1.005 47 11.4 4:45 (240, 14)
Sept.15 8 19.76 12 1.6 1.395 1.046 48 11.9 4:35 (243, 15)
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Now it is so bright as 12.2 mag (Aug. 24, Chris Wyatt). It is expected to be observable at 11-13 mag for a long time from 2012 summer to 2013 summer. It is not observable until 2013 January in the Northern Hemisphere. In the Southern Hemisphere, it will be extremely low from October to December.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept. 8 12 25.35 -64 58.3 2.220 2.138 72 11.5 19:10 ( 30, 32)
Sept.15 12 59.06 -61 54.3 2.300 2.120 67 11.6 19:15 ( 34, 31)
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It is expected to be a great comet of -1 mag in 2013 spring. Now it is 11.8 mag (Aug. 18, Jakub Cerny). Brightening faster than originally expected. In 2012, it keeps observable until October in the Southern Hemisphere. In the Northern Hemisphere, it will be unobservable soon. Then it keeps unobservable for a long time until 2013 March, when the comet will appear as a 0-mag great comet. By the way, Juan Jose Gonzalez reported it extremely bright as 9.5 mag visually on Aug. 21.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept. 8 15 1.47 -25 40.7 3.571 3.274 64 11.9 19:10 ( 88, 47)
Sept.15 15 3.65 -26 1.3 3.587 3.184 58 11.8 19:15 ( 84, 40)
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It kept as bright as 6-7 mag for a long time from 2011 summer to 2012 spring. Now it is not observable. It will appear in the morning sky again at 12.5 mag in October.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept. 8 9 53.93 6 8.7 4.510 3.567 18 12.3 4:45 (265, -3)
Sept.15 9 57.11 4 59.9 4.532 3.635 23 12.4 4:35 (264, 0)
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First return of a new periodic comet which brightened up to 14 mag in 2005. It brightened very rapidly and became much brighter than originally expected. Now it is very bright as 11.0 mag (Sept. 6, Juan Jose Gonzalez). It keeps observable in excellent condition at 11-13 mag from summer to autumn.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept. 8 1 58.62 20 41.0 0.634 1.498 130 12.9 2:50 (180, 34)
Sept.15 2 1.96 24 36.6 0.611 1.497 134 12.8 2:26 (180, 30)
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It brightened much faster than expected. Now it is so bright as 10.3 mag (Aug. 22, Juan Jose Gonzalez). In the Northern Hemisphere, it keeps observable at 11-13 mag in good condition until early 2013. Although it becomes extremely low in August, it will be getting higher again in the morning sky after September. In the Southern Hemisphere, it is not observable until late 2012.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept. 8 9 58.46 41 38.7 2.900 2.211 39 13.0 4:45 (234,-23)
Sept.15 10 1.93 39 45.2 2.876 2.233 42 13.1 4:35 (235,-20)
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Now it is 15.4 mag (Aug. 11, Hidetaka Sato). However, it is extremely diffuse. The nuclear magnitude is fainter than 19 mag. Maybe the comet has been disintegrated, and will disappear soon. It keeps observable for a long time until December, but it keeps locating low in the evening after this.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept. 8 14 22.52 4 46.4 1.760 1.332 48 13.5 19:10 (113, 22)
Sept.15 14 45.01 1 23.1 1.746 1.311 48 13.4 19:15 (108, 22)
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Now it is 13.0 mag (Aug. 21, Juan Jose Gonzalez). It keeps bright at 13-14 mag for a long time until 2014. It keeps observable for a long time in the Northern Hemisphere. It is not observable in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept. 8 21 28.65 54 19.0 5.650 6.167 116 13.6 22:16 (180, 1)
Sept.15 21 18.75 53 7.8 5.627 6.153 117 13.6 21:38 (180, 2)
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Now it is bright as 13.0 mag (Aug. 16, Jakub Cerny). It keeps bright as 13-14 mag for a long time after this until 2013. It is not observable in the Northern Hemisphere, but it is observable in good condition in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept. 8 4 58.92 -55 13.2 5.568 5.757 95 13.7 4:45 (336, 67)
Sept.15 4 56.39 -55 45.4 5.556 5.774 97 13.7 4:35 (343, 68)
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Big asteroid discovered in 1906. It suddenly showed the cometary activity on Dec. 11, 2010, probably due to an impact of a small object. Now it is 11.9 mag (May 29, Marco Goiato). It has already turned to be stellar.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept. 8 16 40.31 -29 11.0 2.335 2.495 87 13.8 19:10 ( 98, 68)
Sept.15 16 49.74 -29 38.3 2.428 2.501 82 13.9 19:15 ( 93, 64)
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Now it is so bright as 11.7 mag (Aug. 17, Carlos Labordena). It will be unobservable in late September in the Northern Hemisphere, or in mid October in the Southern Hemisphere. But it will be observable at 13-14 mag in good condition again in 2013.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept. 8 15 17.62 -13 1.0 5.593 5.247 65 14.1 19:10 (106, 43)
Sept.15 15 16.95 -13 14.9 5.720 5.259 58 14.2 19:15 (100, 37)
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Now it is 12.9 mag (Aug. 14, Jakub Cerny). It is not observable already in the Northern Hemisphere. It will be unobservable soon also in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept. 8 12 44.44 -13 4.1 7.095 6.249 30 14.2 19:10 ( 82, 12)
Sept.15 12 49.18 -13 31.7 7.143 6.248 25 14.2 19:15 ( 78, 7)
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Now it is bright and visible visually at 13.5 mag (Aug. 21, Juan Jose Gonzalez). It keeps observable in good condition at 14 mag for a long time until winter. It locates somewhat low in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept. 8 23 48.96 39 40.0 2.499 3.277 133 14.5 0:41 (180, 15)
Sept.15 23 47.05 39 14.8 2.446 3.259 137 14.4 0:11 (180, 16)
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Now it is so bright as 12.4 mag (Aug. 17, Carlos Labordena). It will be too low to observe in the evening sky soon. But it will be observable at 12-14 mag in good condition again in 2013. However, it locates somewhat low in the Northern Hemisphere in 2013.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept. 8 14 3.17 -4 23.5 3.603 2.980 45 14.5 19:10 (102, 24)
Sept.15 14 12.24 -5 38.8 3.656 2.970 40 14.5 19:15 ( 97, 19)
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Now it is bright and visible visually at 13.7 mag (Aug. 21, Juan Jose Gonzalez). It is expected to approach to the earth and to be observable at 9-10 mag in good condition in winter. The condition is good in the Northern Hemisphere. In the Southern Hemisphere, it will be unobservable after this. But it will become observable in good condition after 2013 January.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept. 8 14 59.83 44 9.8 1.890 1.701 63 14.7 19:10 (146, -1)
Sept.15 14 52.64 43 15.4 1.880 1.627 59 14.5 19:15 (140, -6)
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It kept as bright as 11-12 mag for a long time from 2011 autumn to 2012 spring. It is appearing in the morning sky now. It keeps observable in good condition until next spring while the comet will be fading gradually.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept. 8 9 2.55 11 50.7 3.533 2.723 31 15.0 4:45 (253, 4)
Sept.15 9 13.03 10 59.0 3.513 2.755 35 15.2 4:35 (253, 5)
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Now it is 14.5 mag (July 27, Jakub Cerny). In the Southern Hemisphere, it will be observable at 15-16 mag in good condition for a long time until 2013 summer. It is not observable at all in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept. 8 16 24.43 -81 14.0 3.692 3.895 94 15.2 19:10 ( 6, 43)
Sept.15 16 24.99 -80 59.5 3.759 3.898 90 15.3 19:15 ( 7, 42)
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It brightened very rapidly. Now it is very bright as 14.9 mag (Aug. 26, Katsumi Yoshimoto). It will approach to the earth down to 0.4 A.U., and will be observable in good condition as bright as 14-15 mag in September and October. By the way, Juan Jose Gonzalez reported it extremely bright as 11.2 mag visually on Sept. 6.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept. 8 0 42.36 -0 3.4 0.462 1.440 155 15.4 1:34 (180, 55)
Sept.15 0 35.13 5 40.4 0.437 1.428 162 15.3 1:00 (180, 50)
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It approached to the sun down to 0.12 A.U. on July 14, and brightened up to 7.8 mag (July 22, Juan Jose Gonzalez). It was still bright as 10.5 mag in mid August (Aug. 21, Juan Jose Gonzalez). But now, it is fading rapidly in the evening low sky.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept. 8 15 6.77 -5 10.7 1.571 1.394 60 15.4 19:10 (112, 37)
Sept.15 15 25.80 -8 1.9 1.751 1.510 59 16.1 19:15 (107, 36)
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This comet brightened up to 10 mag in outburst in 1995, however, it became lost after that. The condition of this apparition is bad. It was not observable around the perihelion passage. But it is appearing in the morning sky now. However, it is not detected, fainter than 19.0 mag (Aug. 11, Hidetaka Sato).
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept. 8 7 19.49 11 5.6 2.549 2.161 56 15.7 4:45 (236, 23)
Sept.15 7 30.02 10 28.7 2.530 2.214 60 16.0 4:35 (235, 25)
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First return of a new periodic comet discovered in 1994. Brightening rapidly. Now it is 16.9 mag (Aug. 18, E. Bryssinck). It will brighten up to 13.5 mag and will be observable in good condition from autumn to winter.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept. 8 19 16.25 28 54.0 1.042 1.726 114 16.1 20:05 (180, 26)
Sept.15 19 16.92 27 12.1 1.011 1.668 111 15.9 19:38 (180, 28)
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Jakub Cerny reported the comet brightened in late July. Now it is 14.5 mag, a bit brighter than this ephemeris still now (Aug. 20, Jakub Cerny). It will be observable in good condition in the Southern Hemisphere while fading gradually after this. It will locate somewhat low in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept. 8 22 57.99 -28 27.8 2.743 3.692 157 16.2 23:46 (180, 83)
Sept.15 22 54.41 -29 3.9 2.825 3.746 152 16.4 23:15 (180, 84)
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Now it is 16.1 mag (Aug. 20, Hiroshi Abe). It will brighten up to 15 mag from autum to winter. In the Northern Hemisphere, it keeps observable for a long time until the comet fades out. It is not observable in the Southern Hemisphere, except for 2013 spring, but the comet locates extremely low only.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept. 8 13 34.51 69 59.8 2.763 2.572 68 16.3 19:10 (159,-27)
Sept.15 13 32.53 69 3.7 2.716 2.536 69 16.2 19:15 (156,-29)
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Looks almost asteroidal. But it has a very faint tail. It passed near by the earth, and brightened up to 13.9 mag (July 22, Artyom Novichonok). Now it is fading, but still bright as 15.0 mag (Aug. 19, Seiichi Yoshida). It keeps observable in excellent condition in the Northern Hemisphere. It locates extremely low in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept. 8 18 5.79 40 55.8 1.300 1.742 97 16.2 19:10 (177, 14)
Sept.15 17 57.98 39 46.4 1.444 1.803 93 16.5 19:15 (169, 14)
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Now it is 16.6 mag (Aug. 26, V. Gerke, A. Novichonok). It is expected to brighten up to 10 mag from winter to spring in 2013. In the Northern Hemisphere, it keeps observable in good condition until 2013 April. It is not observable now in the Southern Hemisphere. It will become observable after 2013 April, but it keeps locating low.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept. 8 2 14.04 88 35.0 3.342 3.411 85 16.4 3:12 (180,-34)
Sept.15 0 23.41 89 38.9 3.234 3.342 87 16.3 1:16 (180,-35)
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Now it is 16.0 mag (Aug. 23, A. Diepvens)。It brightens up to 16 mag from autumn to winter. It keeps observable in good condition for a long time until the comet fades out in the Northern Hemisphere. It is not observable until 2013 summer in the Southern Hemisphere. By the way, Juan Jose Gonzalez reported it extremely bright as 10.7 mag visually on Sept. 6.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept. 8 9 43.63 64 27.3 3.962 3.577 60 16.5 4:45 (210,-30)
Sept.15 9 49.31 65 35.2 3.872 3.568 65 16.5 4:35 (208,-29)
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The condition of this apparition is bad, and it was not observable around the perihelion passage. Now it is 16.5 mag (Aug. 25, Yasukazu Ikari). It will be fading after this, and will be fainter than 18 mag in late October.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept. 8 2 5.66 2 38.2 1.926 2.729 134 16.8 2:57 (180, 52)
Sept.15 2 1.59 2 15.1 1.902 2.767 142 16.9 2:26 (180, 53)
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It was observed at 17 mag in 2011 autumn. It will be observable at 17 mag in good condition again from autumn to winter in 2012. It locates low in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept. 8 6 13.90 21 4.1 3.099 2.954 72 17.2 4:45 (216, 25)
Sept.15 6 21.26 21 53.5 3.019 2.968 77 17.1 4:35 (213, 25)
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Now it is 17.3 mag (Aug. 25, V. Gerke, A. Novichonok). It keeps 17 mag for a long time from 2009 to 2013.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept. 8 22 52.16 12 18.1 7.520 8.482 161 17.2 23:40 (180, 43)
Sept.15 22 47.06 11 48.3 7.536 8.496 161 17.2 23:07 (180, 43)
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Now it is 16.6 mag (Aug. 20, Hiroshi Abe). It tends to brighten after the perihelion passage. It keeps observable at 16-17 mag from 2012 to 2013. It locates somewhat low in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept. 8 16 31.82 -21 13.3 3.075 3.134 83 17.2 19:10 (113, 63)
Sept.15 16 38.95 -21 43.5 3.173 3.138 78 17.2 19:15 (105, 58)
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First return of a new periodic comet discovered in 2005. Now it is 16.7 mag (Aug. 16, Yasukazu Ikari). It will be observable in excellent condition at 17-18 mag until November.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept. 8 23 19.72 5 31.1 1.196 2.192 168 17.2 0:12 (180, 49)
Sept.15 23 14.96 5 22.6 1.191 2.189 170 17.2 23:35 (180, 50)
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Although it was extremely faint as 20.0 mag on May 27 (Hidetaka Sato), it brightened rapidly. Now it is 17.4 mag (Aug. 16, Yasukazu Ikari). It keeps observable in good condition at 17 mag from summer to autumn.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept. 8 23 28.58 5 14.9 1.073 2.068 167 17.3 0:21 (180, 50)
Sept.15 23 21.74 6 15.8 1.068 2.067 170 17.2 23:41 (180, 49)
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It brightened up to 10 mag from autumn to winter in 2011. Now it is appearing in the morning sky again in the Southern Hemisphere. It has already faded down to 17.5 mag (Aug. 16, Jakub Cerny). It keeps observable in good condition while fading graudlaly after this. It will be hardly observable in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept. 8 5 5.83 -33 13.3 4.319 4.492 93 17.5 4:45 (268, 75)
Sept.15 5 4.91 -35 15.6 4.313 4.551 97 17.5 4:35 (275, 79)
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Now it is 18.0 mag (May 27, K. Hills). In the Southern Hemisphere, it keeps observable at 17 mag in good condition for a long time from 2012 to 2013. It is not observable at all in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept. 8 7 7.25 -51 20.3 5.115 4.976 76 17.5 4:45 (311, 52)
Sept.15 7 9.65 -53 19.1 5.070 4.964 78 17.5 4:35 (315, 54)
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Now it is 16.8 mag (Aug. 26, Catalina Sky Survey). It keeps 17.5 mag until September. It is observable in excellent condition in the Southern Hemisphere. But it locates somewhat low in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept. 8 21 25.71 -16 41.6 0.656 1.619 152 17.7 22:14 (180, 71)
Sept.15 21 25.72 -13 38.4 0.694 1.632 147 17.8 21:46 (180, 68)
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First return of a new periodic comet discovered in 1997 at 17 mag. It is expected to keep 17 mag for a long time from 2012 to 2014. The ephemeris says it is already 18 mag, but it has not been recovered yet. Toru Yusa reported that the comet was not detected, fainter than 19.5 mag, on July 18.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept. 8 2 23.86 15 24.8 3.365 4.051 126 17.8 3:15 (180, 40)
Sept.15 2 23.35 15 20.4 3.270 4.032 133 17.7 2:47 (180, 40)
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It brightened up to 12 mag in 2010. Now the comet is around the aphelion. But it will be observable at 17.5 mag in good condition from autumn to winter.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept. 8 4 42.47 20 32.0 4.361 4.538 93 17.9 4:45 (194, 33)
Sept.15 4 43.98 20 39.2 4.262 4.548 100 17.8 4:35 (189, 34)
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