Weekly Information about Bright Comets (2015 Aug. 15: South)

Japanese version Home page	Updated on August 16, 2015
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Best time and the azimuth, altitude (A,h) are at lat. 35 deg in the Southern Hemisphere. Azimuth indicates 0 for south, 90 for west, 180 for north, 270 for east.

C/2013 US10 ( Catalina ) Now it is bright as 6.8 mag (Aug. 13, Marco Goiato). It is expected to brighten up to 5 mag from autumn to winter. It keeps observable in excellent condition until autumn in the Southern Hemisphere. In the Northern Hemisphere, it keeps unobservable until late November. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 15 19 7.74 -73 48.2 1.089 1.792 116 7.3 21:23 ( 0, 51) Aug. 22 16 57.95 -70 15.1 1.113 1.698 106 7.1 18:58 ( 1, 55) C/2014 Q1 ( PanSTARRS ) It approached to the sun down to 0.3 a.u. on July 6, and brighted up to 3.9 mag (July 6, Thomas Lehmann). Now it is 8.8 mag (Aug. 13, Marco Goiato). In the Northern Hemisphere, it keeps observable until the comet fades out. It will not be observable after this in the Northern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 15 11 32.35 -22 58.2 1.439 1.050 46 9.2 18:53 ( 79, 26) Aug. 22 11 59.05 -28 38.3 1.560 1.187 49 9.8 18:58 ( 73, 28) C/2014 Q2 ( Lovejoy ) It brightened up to 3.7 mag and became a naked eye comet in mid January (Jan. 13, Marek Biely). Now it is fading. But it is bright as 10.0 mag still now (Aug. 12, Maik Meyer). In the Northern Hemisphere, it keeps observable for a long time until the comet fades out. It locates extremely low in the Southern Hemisphere, and it will be unobservable in late September. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 15 15 25.98 51 17.5 3.017 2.965 77 10.3 18:53 (171, 3) Aug. 22 15 33.07 48 12.3 3.116 3.039 76 10.5 18:58 (166, 5) C/2015 P3 ( SWAN ) New bright comet. Now it is 10.3 mag (Aug. 10, Juan Jose Gonzalez). In the Southern Hemisphere, it keeps observable in the evening sky until the comet becomes fainter than 18 mag in winter. In the Northern Hemisphere, it will be unobservable soon, then it will never be observable again. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 15 12 48.59 1 42.7 0.919 0.808 49 10.9 18:53 (113, 28) Aug. 22 13 15.70 -10 44.3 0.951 0.880 53 11.3 18:58 (101, 35) C/2015 F4 ( Jacques ) It brightened rapidly. Now it is so bright as 10.5 mag (Aug. 7, Marco Goiato). It keeps 10-11 mag until August. It is observale in good condition in the Northern Hemisphere, but it will be getting lower gradually in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 15 19 9.28 37 25.5 0.907 1.645 117 11.2 21:34 (180, 17) Aug. 22 18 59.24 39 57.1 0.969 1.651 112 11.3 20:57 (180, 15) 22P/Kopff Now it is 11.7 mag (Aug. 7, Marco Goiato). It will brighten up to 11 mag autumn. In this apparition, it is observable until the highlight while the comet is brightening. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 15 13 52.42 -7 28.8 1.831 1.714 67 11.5 18:53 (119, 45) Aug. 22 14 7.11 -9 5.8 1.856 1.687 64 11.4 18:58 (113, 43) 67P/Churyumov-Gerasimenko Now it is 12.4 mag (Aug. 13, Chris Wyatt). It will brighten up to 12 mag from August to October. In the Northern Hemisphere, it is getting higher gradually, and it keeps observable in good condition after this. In the Southern Hemisphere, it keeps low until November. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 15 6 37.22 24 24.2 1.770 1.243 43 12.5 5:15 (231, 9) Aug. 22 7 5.35 24 22.1 1.768 1.248 43 12.3 5:08 (232, 8) 19P/Borrelly It brightened up to 12.8 mag until March (Mar. 21, Michael Mattiazzo). It must have brightened up to 10.5 mag in May and June, but it was not observable. In the Northern Hemisphere, it will be observable after autumn while the comet will be fading. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 15 9 1.17 31 32.8 2.540 1.616 19 12.6 5:15 (245,-20) Aug. 22 9 23.92 31 6.2 2.563 1.659 21 12.7 5:08 (246,-20) 88P/Howell It is fading, but bright as 11.6 mag still now (Aug. 8, Marco Goiato). It keeps observable in good condition until winter when the comet becomes fainter than 18 mag. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 15 2 48.40 12 1.8 1.490 1.919 98 12.6 5:15 (180, 43) Aug. 22 2 52.89 12 23.0 1.459 1.965 103 12.8 4:54 (180, 43) C/2015 G2 ( MASTER ) It brightened up to 6.0 mag in mid May (May 14, Chris Wyatt). Now it is fading. It has faded down to 9.0 mag in late June (June 21, Marco Goiato). It is not observable now. In the Southern Hemisphere, it will be observable again after September, but the comet will be fainter than 13 mag. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 15 8 33.08 15 40.7 2.622 1.666 15 12.8 5:15 (255, -6) Aug. 22 8 35.90 16 26.7 2.665 1.762 21 13.1 5:08 (252, -3) 10P/Tempel 2 Now it is 16.2 mag (July 18, Taras Prystavski). It keeps observable after this while the comet will be getting brighter graudually. It will brighten up to 11 mag from autumn to winter. But it locates low at that time. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 15 14 40.07 -6 26.8 1.588 1.699 78 13.7 18:53 (133, 53) Aug. 22 14 51.89 -8 19.1 1.611 1.662 74 13.4 18:58 (125, 51) C/2012 F3 ( PanSTARRS ) Now it is 12.9 mag (July 11, Gabor Santa). In 2015, it keeps 13-14 mag and will be observable in good condition for a long time. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 15 19 9.27 -11 12.5 2.790 3.659 144 13.4 21:35 (180, 66) Aug. 22 19 9.10 -11 41.7 2.869 3.681 137 13.4 21:08 (180, 67) 29P/Schwassmann-Wachmann 1 It brightened in outburst twice in July. It is bright as 12.1 mag still now (Aug. 10, Chris Wyatt). Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 15 17 15.95 -30 12.5 5.467 6.017 118 13.5 19:42 (180, 85) Aug. 22 17 15.93 -30 1.1 5.565 6.015 111 13.6 19:15 (180, 85) C/2013 X1 ( PanSTARRS ) Now it is 14.1 mag (Aug. 5, Ken-ichi Kadota). It will pass close to the earth from spring to summer in 2016, and it is expected to be observable at 6-7 mag in good condition. In the Northern Hemispehre, it will be getting higher gradually in the morning sky, then it keeps observable in excellent condition until winter. In the Southern Hemisphere, it keeps very low until winter. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 15 5 42.31 36 7.9 3.976 3.517 56 14.0 5:15 (214, 8) Aug. 22 5 44.12 36 36.9 3.793 3.445 62 13.8 5:08 (211, 10) C/2014 S2 ( PanSTARRS ) Now it is bright as 14.8 mag (July 26, Ken-ichi Kadota). It is expected to brighten up to 15 mag from autum to next spring, and to be observable in excellent condition in the Northern Hemisphere. It keeps unobservable in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 15 2 45.42 56 20.7 2.376 2.500 84 14.5 5:14 (180, -1) Aug. 22 2 52.28 60 22.6 2.277 2.458 87 14.3 4:54 (180, -5) C/2011 KP36 ( Spacewatch ) Now it is 14.1 mag and visible visually (July 10, Jakub Cerny). Distant object, but it keeps observable at 14-15 mag for a long time from 2015 to 2016. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 15 21 19.88 -2 16.5 4.308 5.301 167 14.4 23:45 (180, 57) Aug. 22 21 17.54 -2 44.8 4.296 5.282 165 14.4 23:15 (180, 58) C/2014 A4 ( SONEAR ) Now it is 16.5 mag (July 10, A. Maury, J.-G. Bosch, T. Noel). It will brighten up to 14 mag from 2015 to 2016. It keeps observable in good condition for a while. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 15 3 6.35 11 9.7 3.984 4.184 94 14.7 5:15 (187, 44) Aug. 22 3 1.86 11 43.9 3.854 4.182 101 14.6 5:03 (180, 43) C/2014 W2 ( PanSTARRS ) Now it is 15.0 mag (Aug. 5, Ken-ichi Kadota). It keeps 13 mag for a long time from 2015 autumn to 2016 summer. In the Northern Hemispehre, it keeps observable in good condition for a long time. It keeps unobservable in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 15 5 58.83 48 30.8 3.884 3.423 56 15.0 5:15 (210, -4) Aug. 22 6 8.31 50 16.2 3.755 3.380 60 14.9 5:08 (207, -4) 318P/2014 M6 ( McNaught-Hartley ) First return of a periodic comet discovered in 1994. Now it is 15.5 mag (July 26, Ken-ichi Kadota). It will brighten up to 15 mag from summer to autumn, and will be observable in excellent condition in the Southern Hemisphere. It locates somewhat low in the Northern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 15 23 1.50 -35 48.7 1.589 2.525 151 15.0 1:31 ( 0, 89) Aug. 22 22 57.55 -35 58.4 1.566 2.510 152 15.0 0:59 ( 0, 89) C/2014 W11 ( PanSTARRS ) It brightened very rapidly, and brightened up to 13.8 mag (May 11, Sandor Szabo). 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) Aug. 15 10 53.95 -2 8.2 4.343 3.455 25 15.0 18:53 ( 92, 7) Aug. 22 11 3.21 -3 10.9 4.383 3.462 21 15.1 18:58 ( 88, 3) C/2014 N3 ( NEOWISE ) Now it is 14.9 mag (July 23, Taras Prystavski). It keeps 15 mag for a long time from 2014 to 2015. It is observable in excellent condition in the Northern Hemisphere. It locates low in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 15 2 23.32 34 39.0 3.873 4.108 96 15.1 4:52 (180, 20) Aug. 22 2 21.92 36 14.4 3.795 4.128 102 15.1 4:23 (180, 19) 320P/2015 HC10 ( McNaught ) Now it is 19 mag (June 13, WISE). It is expected to brighten rapidly up to 15 mag in August. It is observable in good condition in the Southern Hemisphere. It locates somewhat low in the Northern Hemisphere until August. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 15 14 25.93 -10 46.6 0.260 0.983 76 15.5 18:53 (125, 54) Aug. 22 15 13.97 -10 13.7 0.223 1.000 80 15.2 18:58 (131, 56) 141P/Machholz 2 It was reported so bright as 14.6 mag visually (July 11, Jakub Cerny). However, it is faint as 16.1 mag by CCD observations (July 25, Katsumi Yoshimoto). It was expected to brighten rapidly up to 11 mag from summer to autumn. But actually, maybe it brightens up to 15 mag at best. In the Northern Hemisphere, it keeps observable in good condition in the morning sky. It keeps locating extremely low from summer to autumn. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 15 6 18.50 32 11.3 0.863 0.780 48 15.4 5:15 (223, 7) Aug. 22 6 58.70 28 55.5 0.940 0.763 45 15.4 5:08 (228, 6) 57P/du Toit-Neujmin-Delporte Now it is 14.6 mag and visible visually (July 12, Jakub Cerny). It will be observable in excellent condition at 14-15 mag in summer. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 15 0 33.10 5 41.1 1.060 1.893 131 15.4 3:02 (180, 49) Aug. 22 0 33.25 5 29.3 1.039 1.919 138 15.4 2:35 (180, 49) C/2012 K1 ( PanSTARRS ) It brightened up to 6.9 mag in 2014 autumn (Oct. 17, Marco Goiato). Now it is fading. It has already faded down to 15.1 mag (July 26, Taras Prystavski). In the Southern Hemisphere, it keeps observable in good condition until the comet fades out. In the Northern Hemisphere, it keeps observable until winter, but it locates somewhat low. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 15 0 13.47 -25 14.3 3.825 4.661 141 15.4 2:43 (180, 80) Aug. 22 0 4.67 -26 8.7 3.843 4.731 147 15.5 2:07 (180, 81) 61P/Shajn-Schaldach Now it is 16.4 mag (July 22, Taras Prystavski). It will be observable at 15 mag in good condition in autumn. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 15 2 8.27 9 31.8 1.598 2.146 108 15.8 4:37 (180, 45) Aug. 22 2 15.58 9 38.7 1.523 2.138 113 15.7 4:17 (180, 45) C/2013 V4 ( Catalina ) Now it is 15.8 mag (Aug. 5, Ken-ichi Kadota). It keeps 15-16 mag for a long time until 2016. It keeps observable in excellent condition in the Northern Hemisphere. It keeps unobservable in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 15 5 10.64 52 9.6 5.559 5.201 64 15.9 5:15 (201, -3) Aug. 22 5 16.26 53 26.9 5.467 5.197 69 15.8 5:08 (199, -3) 117P/Helin-Roman-Alu 1 It brightened up to 13 mag in 2014. Now it is 15.7 mag (July 23, Taras Prystavski). It will be fading slowly after this. It is observable at 16 mag in excellent condition from summer to winter in 2015. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 15 1 41.77 2 21.0 3.245 3.812 116 16.0 4:11 (180, 53) Aug. 22 1 41.53 2 13.6 3.173 3.828 123 16.0 3:43 (180, 53) C/2010 S1 ( LINEAR ) Now it is 16.0 mag (May 26, Yasukazu Ikari). It is observable at 15-16 mag in good condition until autumn. It locates somewhat low in the Northern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 15 17 44.57 -25 1.4 7.520 8.141 124 16.0 20:11 (180, 80) Aug. 22 17 41.65 -25 17.5 7.657 8.172 117 16.1 19:40 (180, 80) 44P/Reinmuth 2 It brightened up to 16.4 mag in 2014 (Nov. 14, J. F. Hernandez). Now it is 17.5 mag (June 28, B. Lutkenhoner, M. Kumrucu-Lohmiller, P. Cox). It will be observable at 16 mag again from summer to autumn in 2015. However, it is fainter than this ephemeris recently. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 15 3 48.17 25 51.7 2.314 2.379 81 16.2 5:15 (196, 27) Aug. 22 3 56.96 26 25.4 2.254 2.402 85 16.2 5:08 (193, 27) 6P/d'Arrest Fading rapidly. Now it is 16.0 mag (July 26, Ken-ichi Kadota). It will be fainter than 18 mag in late August. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 15 5 0.05 4 29.9 2.366 2.208 68 16.8 5:15 (225, 40) Aug. 22 5 9.10 4 4.4 2.339 2.257 72 17.2 5:08 (223, 42) 230P/LINEAR Now it is 18 mag (July 16, WISE). It is expected to brighten rapidly, and to be observable at 14.5 mag in good condition in autumn. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 15 2 49.65 -4 28.5 1.260 1.778 102 17.0 5:15 (181, 59) Aug. 22 3 4.82 -4 41.1 1.179 1.741 104 16.8 5:05 (180, 60) C/2011 J2 ( LINEAR ) Now it is 16.4 mag (June 12, Takaaki Oribe). It is fading, but it is observable at 17 mag in good condition until late autumn. The fragments B and C are already fainter than 20 mag (June 12, Takaaki Oribe). Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 15 23 25.17 7 49.4 5.358 6.216 145 16.8 1:54 (180, 47) Aug. 22 23 20.34 6 55.2 5.344 6.261 152 16.8 1:22 (180, 48) 325P/2015 J4 ( Yang-Gao ) First return of a new periodic comet which brightened up to 12 mag in 2009. Now it is 18.3 mag (June 10, Hidetaka Sato), fainter than this ephemeris by 1 mag. It will be 17-18 mag at best in this apparition. It is observable in good condition in the Southern Hemisphere. In the Northern Hemisphere, it keeps locating extremely low after June. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 15 13 19.27 -12 52.7 1.603 1.431 61 16.9 18:53 (106, 43) Aug. 22 13 42.60 -13 42.5 1.632 1.433 60 16.9 18:58 (103, 41) 162P/Siding Spring Now it is 16.5 mag (June 3, Taras Prystavski). In the Northern Hemisphere, it is getting higher gradually in the morning sky. In the Southern Hemisphere, it locates extremely low, and will be unobservable in August. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 15 6 9.39 32 31.2 1.690 1.301 50 16.9 5:15 (221, 8) Aug. 22 6 35.58 34 19.4 1.690 1.329 51 16.9 5:08 (221, 5) 319P/2015 G1 ( Catalina-McNaught ) First return of a periodic comet discovered in 2008. Now it is 16.8 mag (June 21, J. Nicolas, C. Rinner, F. Kugel, A. Klotz). It approaches to the earth and it is observable at 16 mag in good condition from spring to summer. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 15 3 21.41 -6 14.2 0.763 1.321 95 16.9 5:15 (197, 60) Aug. 22 3 33.77 -6 54.4 0.774 1.360 98 17.1 5:08 (194, 61) 174P/(60558) 2000 EC98 ( Echeclus ) Now it is 17.5 mag (July 25, Katsumi Yoshimoto). It has brightened in outburst up to 14 mag twice, in 2006 January and 2011 May. It is around the perihelion now. It keeps observable at 17 mag for a long time after this. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 15 23 25.16 -3 2.2 4.937 5.843 150 17.2 1:54 (180, 58) Aug. 22 23 23.15 -3 18.1 4.895 5.846 158 17.1 1:25 (180, 58) C/2015 K1 ( MASTER ) Now it is 16.5 mag (June 3, Taras Prystavski). It keeps observable in good condition until the comet fades out. In 2014, it must have been observable at 14 mag in good condition in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 15 0 48.09 1 44.6 3.296 4.021 129 17.1 3:17 (180, 53) Aug. 22 0 45.05 1 58.8 3.271 4.072 137 17.2 2:47 (180, 53) C/2014 W5 ( Lemmon-PanSTARRS ) It keeps 16 mag for a long time from 2015 autumn to 2016 summer. It keeps observable in excellent condition in the Southern Hemisphere. It locates low in the Northern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 15 3 22.08 -7 39.7 2.943 3.200 95 17.4 5:15 (198, 61) Aug. 22 3 18.37 -10 2.0 2.778 3.158 102 17.2 5:08 (187, 65) 221P/LINEAR Now it is 15.6 mag (July 8, Taras Prystavski). It will be fading after this, and will be fainter than 18 mag in September. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 15 17 0.90 -7 26.2 1.136 1.786 112 17.3 19:28 (180, 62) Aug. 22 17 11.71 -7 52.2 1.199 1.798 108 17.4 19:11 (180, 63) C/2014 AA52 ( Catalina ) It brightened up to 15.3 mag in winter (Jan. 17, Taras Prystavski). Now it is fading. It has already faded down to 16.3 mag (July 22, Taras Prystavski). It keeps observable in good condition for a while. But it will be fainter than 18 mag in September. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 15 22 39.36 -12 57.3 1.825 2.814 164 17.3 1:10 (180, 68) Aug. 22 22 18.55 -12 13.3 1.859 2.869 176 17.4 0:21 (180, 67) 299P/2014 D2 ( Catalina-PanSTARRS ) Now it is 16.2 mag (June 21, Space Surveillance Telescope, Atom Site). It keeps observable at 17 mag from spring to summer. It locates somewhat low in the Northern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 15 16 42.00 -22 49.1 2.766 3.261 110 17.3 19:09 (180, 78) Aug. 22 16 45.49 -22 37.9 2.868 3.270 104 17.4 18:58 (166, 77) 151P/Helin It has not been observed in this apparition yet. It is expected to be observable at 17 mag in good condition from summer to autumn. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 15 23 46.42 -4 7.4 1.607 2.514 146 17.8 2:15 (180, 59) Aug. 22 23 45.72 -4 33.8 1.559 2.504 153 17.6 1:47 (180, 59) C/2013 G3 ( PanSTARRS ) Now it is 17.4 mag (June 14, A. Diepvens). It was observed at 17 mag in 2014 summer. In the Northern Hemisphere, it is observable at 17.5 mag in excellent condition also in 2015. It is not observable in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 15 22 6.58 54 36.5 4.056 4.516 110 17.6 0:36 (180, 0) Aug. 22 22 2.59 54 4.6 4.042 4.547 113 17.6 0:04 (180, 1) 7P/Pons-Winnecke It must have brightened up to 11 mag from January to February, but no observations have been reported. Now it is 16.9 mag (July 9, A. Maury, J.-G. Bosch, T. Noel). It will be fainter than 18 mag in late August. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 15 2 55.76 -11 44.6 2.009 2.438 102 17.7 5:15 (185, 67) Aug. 22 2 57.54 -12 33.5 1.982 2.490 108 17.9 4:58 (180, 67) 220P/McNaught Now it is 17.2 mag (June 13, iTelescope Observatory, Siding Spring). It will be observable at 17.5 mag in good condition in summer. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 15 2 57.53 9 43.8 1.208 1.666 96 17.7 5:15 (184, 45) Aug. 22 3 8.52 9 36.3 1.177 1.691 100 17.8 5:08 (180, 45) 51P/Harrington It brightened up to 15.9 mag in June as predicted (June 23, Ken-ichi Kadota). It was expected to be observable at 13 mag in good condition from summer to autumn. However, Jean-Gabriel Bosch detected the comet became disintegrating in July. Now it is so faint as 18.7 mag (July 13, Jean-Gabriel Bosch). The fragment D was also observed at 21.9 mag in May (May 30, Pan-STARRS 1). Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 15 1 54.44 1 59.1 1.013 1.700 114 17.8 4:23 (180, 53) Aug. 22 2 3.93 2 27.7 0.971 1.702 118 17.7 4:05 (180, 52) P/2015 F1 ( PanSTARRS ) It brightened up to 15.3 mag in June (June 21, Space Surveillance Telescope, Atom Site). Now it is fading. It has already faded down to 17.1 mag (July 4, K. Hills). It will be fainter than 18 mag in August. It is observable in excellent condition in the Southern Hemisphere. It locates somewhat low in the Northern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 15 16 17.57 -23 52.9 2.235 2.682 105 17.8 18:53 (170, 79) Aug. 22 16 23.59 -24 5.1 2.333 2.694 99 17.9 18:58 (143, 77) 327P/2015 P2 ( Van Ness ) Now it is 18.8 mag (Aug. 10, A. Sodor, K. Sarneczky). It was predicted to be observable at 17.5 mag in good condition from autumn to winter, but it is a bit fainter actually. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 15 18 12.16 26 45.6 1.295 1.959 115 18.0 20:38 (180, 28) Aug. 22 18 12.23 24 3.6 1.281 1.921 113 17.9 20:11 (180, 31) C/2012 LP26 ( Palomar ) Far object. Now it is 16.7 mag (July 17, J. Jahn). It keeps observable at 18 mag in good condition from summer to autumn. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 15 19 47.32 -4 17.4 5.629 6.536 151 17.9 22:13 (180, 59) Aug. 22 19 45.91 -4 45.3 5.677 6.536 145 17.9 21:44 (180, 60) 205P/Giacobini Now it is 17.0 mag (June 20, iTelescope Observatory, Siding Spring). First return of a comet re-discovered after 112-year blank in 2008. It brightened up to 12 mag in 2008. In this apparition, it was expected to brighten up to 15 mag from spring to summer, but it is fainter than predicted. It keeps locating low in the morning sky for a while. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 15 4 1.30 12 43.9 1.662 1.805 80 17.9 5:15 (204, 39) Aug. 22 4 13.14 12 7.2 1.631 1.841 84 18.0 5:08 (201, 40) 50P/Arend Now it is 18.9 mag (July 13, A. Maury, J.-G. Bosch, T. Noel, J.-F. Soulier). It was expected to brighten rapidly, and to be observable at 16 mag in good condition from summer to winter. But actually, it is much fainter than predicted. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Aug. 15 23 30.50 -14 3.9 1.511 2.453 152 18.3 2:00 (180, 69) Aug. 22 23 25.42 -13 47.6 1.445 2.419 159 18.1 1:27 (180, 69)