Weekly Information about Bright Comets (2016 Apr. 16: North)

Japanese version Home page	Updated on April 16, 2016
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Best time and the azimuth, altitude (A,h) are at lat. 35 deg in the Northern Hemisphere. Azimuth indicates 0 for south, 90 for west, 180 for north, 270 for east.

252P/LINEAR It passed only 0.036 a.u. from the earth on Mar. 21-22, and brightened up to 3.9 mag (Mar. 21, Thomas Lehmann). It keeps brightening even after the perihelion passage. It is very bright as 6.2 mag still now (Apr. 16, Marco Goiato). It keeps observable in excellent condition for a while after this both in the Northern Hemisphere and Southern Hemisphere. It may fade out very rapidly. The orbital elements are similar to those of P/2016 BA14 ( PanSTARRS ). Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 16 17 30.09 4 25.7 0.156 1.090 120 6.9 3:53 ( 0, 59) Apr. 23 17 25.15 7 0.1 0.196 1.132 126 7.9 3:21 ( 0, 62) C/2013 X1 ( PanSTARRS ) It brightened up to 8.7 mag until February (Feb. 14, Thomas Lehmann). It will pass close to the earth from spring to summer, and it is expected to brighten up to 5-6 mag. Now it is appearing in the morning sky. In the Southern Hemisphere, it keeps observable in excellent condition after this. In the Northern Hemisphere, it locates low in the south. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 16 23 32.67 0 59.1 2.051 1.316 32 7.1 3:57 (269, 1) Apr. 23 23 31.00 -0 15.8 1.917 1.315 39 6.9 3:47 (273, 4) C/2014 S2 ( PanSTARRS ) Now it is so bright as 10.0 mag (Apr. 15, Seiichi Yoshida). It will be fading slowly after this. It is observable in excellent condition in the Northern Hemisphere. It is not observable now in the Southern Hemisphere, but it will be observable after May. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 16 11 18.10 57 17.3 2.095 2.571 106 9.8 21:37 (180, 68) Apr. 23 11 8.56 53 34.7 2.183 2.617 104 10.0 21:01 (180, 72) C/2013 US10 ( Catalina ) Now it is 10.5 mag (Apr. 7, Carlos Labordena). It was expected to brighten up to 4-5 mag from autumn to winter. But actually, it was 6 mag at best. Now it is fading rapidly. It is not observable after this in the Southern Hemisphere. It will be extremely low from May to June also in the Northern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 16 4 35.97 48 12.9 3.035 2.565 53 11.5 20:02 (129, 34) Apr. 23 4 42.07 47 41.5 3.214 2.652 48 11.8 20:10 (130, 29) 333P/LINEAR First return of an object discovered as an asteroid 2007 VA85 in 2007. It brightened very rapidly since mid February, and now it is so bright as 12.6 mag (Mar. 28, Thomas Lehmann). It is alreay unobservable in the Southern Hemisphere. It will be unobservable in late April also in the Northern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 16 3 16.69 35 57.9 1.805 1.128 34 12.0 20:02 (124, 15) Apr. 23 3 12.68 37 40.3 1.909 1.146 29 12.7 20:10 (130, 10) 81P/Wild 2 Now it is 11.7 mag (Apr. 9, Seiichi Yoshida). It will brighten up to 11 mag from spring to summer. In the Northern Hemisphere, it will be getting lower after this, and will be unobservable in June. It locates somewhat low in the Southern Hemisphere, but it keeps observable until August. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 16 6 21.51 22 46.7 1.953 1.844 68 12.2 20:02 ( 88, 45) Apr. 23 6 36.39 22 47.4 1.984 1.812 65 12.1 20:10 ( 91, 41) C/2014 W2 ( PanSTARRS ) Now it is 12.2 mag (Apr. 8, Seiichi Yoshida). It keeps 12-13 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 until July in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 16 19 56.30 70 16.0 2.705 2.698 78 12.2 3:57 (198, 50) Apr. 23 19 35.83 71 14.8 2.690 2.709 80 12.2 3:47 (193, 51) 9P/Tempel 1 Now it is 14.0 mag (Apr. 15, Seiichi Yoshida). Brightening very rapidly, but it is fainter than this ephemeris. It is expected to be observable at 11 mag in good condition from spring to summer. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 16 11 47.17 20 40.2 0.975 1.854 139 12.6 22:07 ( 0, 76) Apr. 23 11 43.00 20 0.5 0.982 1.819 132 12.5 21:35 ( 0, 75) 116P/Wild 4 Now it is 13.4 mag (Apr. 15, Seiichi Yoshida). It keeps 13 mag for a while. 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) Apr. 16 15 58.61 -23 11.3 1.399 2.288 143 13.2 2:22 ( 0, 32) Apr. 23 15 55.66 -23 20.5 1.369 2.302 151 13.2 1:52 ( 0, 32) 29P/Schwassmann-Wachmann 1 It is observable in excellent condition in the Southern Hemisphere. Now it is faint as 17.1 mag (Apr. 14, Jean-Francois Soulier). Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 16 19 51.99 -25 23.3 5.842 5.945 91 13.6 3:57 (327, 21) Apr. 23 19 53.79 -25 19.3 5.729 5.943 97 13.6 3:47 (330, 23) 104P/Kowal 2 Now it is bright as 12.7 mag (Mar. 30, Sandor Szabo). Although it was faint as 19.0 mag in January (Jan. 10, B. Lutkenhoner), it brightened rapidly in February. It keeps observable until May in the Northern Hemisphere, or until July in the Southern Hemisphere. But it keeps extremely low. The brightness differs in every apparition. It was not observed in the last apparition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 16 4 8.98 16 42.4 1.834 1.203 37 13.7 20:02 (100, 15) Apr. 23 4 37.76 17 14.9 1.856 1.223 37 13.9 20:10 (101, 14) 43P/Wolf-Harrington It will brighten up to 11 mag from summer to autumn. It will appear in the morning sky in summer, but it keeps low for some time. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 16 0 30.74 13 50.4 2.851 1.911 16 14.6 3:57 (251, -3) Apr. 23 0 47.70 15 19.8 2.790 1.864 18 14.3 3:47 (249, -2) 77P/Longmore Now it is 14.6 mag (Apr. 8, Seiichi Yoshida). It is observable at 14-15 mag in good condition from winter to summer. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 16 13 0.92 -12 34.4 1.346 2.342 170 14.5 23:20 ( 0, 42) Apr. 23 12 52.90 -13 23.7 1.359 2.339 162 14.5 22:44 ( 0, 41) 53P/Van Biesbroeck Now it is 15.4 mag (Mar. 15, Yuji Ohshima). It will be observable at 14 mag in good condition from spring to summer. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 16 20 16.15 -14 19.9 2.337 2.432 83 14.7 3:57 (315, 28) Apr. 23 20 26.10 -13 45.4 2.256 2.430 87 14.6 3:47 (316, 29) C/2011 KP36 ( Spacewatch ) Now it is 15.1 mag (Jan. 2, Ken-ichi Kadota). Distant object, but it keeps observable at 14-15 mag for a long time from 2015 to 2016. It becomes unobservable temporarily from January to March in the Southern Hemisphere, or from February to April in the Northern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 16 23 40.40 -0 45.4 5.725 4.892 31 14.7 3:57 (270, -2) Apr. 23 23 47.08 -0 17.2 5.665 4.890 36 14.7 3:47 (271, 1) 118P/Shoemaker-Levy 4 Now it is 16.0 mag (Mar. 2, Hiroshi Abe). It will brighten up to 14 mag in summer. But it is not observable at the highlight. It will be unobservable soon. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 16 3 35.49 13 5.9 2.858 2.040 29 14.9 20:02 (102, 7) Apr. 23 3 51.39 14 6.9 2.879 2.028 26 14.7 20:10 (105, 3) 321P/SOHO It grazed the surface of the sun on Apr. 10. It passed only 0.16 a.u. from the earth on Mar. 13, and it was observable in excellent condition. However, it was not visible, fainter than 19 mag (Mar. 17, Jean-Francois Soulier). Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 16 2 45.18 11 16.4 1.053 0.303 16 14.9 20:02 (107, -3) Apr. 23 4 3.03 14 27.4 1.104 0.539 29 17.5 20:10 (103, 6) 10P/Tempel 2 It is not observable now. It will appear in the morning sky in summer, but it will be fainter than 17 mag. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 16 2 17.73 5 16.8 3.043 2.068 11 15.3 20:02 (107,-14) Apr. 23 2 32.32 6 33.6 3.097 2.111 9 15.5 20:10 (111,-17) 22P/Kopff It is not observable now. It will appear in the morning sky in June. But the comet will be faint as 16-17 mag. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 16 0 51.90 2 15.8 3.227 2.265 13 15.3 3:57 (257,-14) Apr. 23 1 4.62 3 30.1 3.249 2.307 17 15.5 3:47 (256,-13) C/2015 V2 ( Johnson ) Now it is 15.7 mag (Mar. 30, Sandor Szabo). It is expected to brighten up to 7 mag in 2017 summer. In the Northern Hemisphere, it keeps observable in good condition until the highlight while the comet will be brightening. In the Southern Hemisphere, it is not observable until early 2017. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 16 6 50.44 60 6.0 5.222 5.063 75 15.6 20:02 (146, 53) Apr. 23 6 55.35 59 35.0 5.243 5.001 70 15.6 20:10 (143, 50) C/2014 W11 ( PanSTARRS ) It brightened very rapidly in 2015 spring, and reached up to 13.8 mag (May 11, Sandor Szabo). It is bright as 14.2 mag still now (Mar. 11, Yasukazu Ikari). It keeps 15 mag for a while until spring. 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) Apr. 16 14 0.62 -29 51.0 3.127 4.082 159 15.8 0:24 ( 0, 25) Apr. 23 13 56.73 -29 31.8 3.137 4.109 162 15.9 23:49 ( 0, 25) C/2014 Q2 ( Lovejoy ) It brightened up to 3.7 mag and became a naked eye comet in mid January in 2015 (Jan. 13, Marek Biely). Now it is fading. It has already faded down to 15.8 mag (Mar. 15, Yuji Ohshima). In the Northern Hemisphere, it keeps observable for a long time until the comet fades out. It locates somewhat low in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 16 18 28.55 25 22.0 5.100 5.379 100 16.0 3:57 (306, 75) Apr. 23 18 25.97 25 50.8 5.087 5.443 105 16.1 3:47 (319, 78) C/2013 V4 ( Catalina ) Now it is 15.4 mag (Mar. 10, D. Buczynski). It keeps 16 mag until autumn. It keeps observable in good condition for a long time 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) Apr. 16 4 3.05 72 55.0 5.705 5.382 66 16.1 20:02 (159, 35) Apr. 23 4 18.56 73 11.0 5.766 5.397 63 16.1 20:10 (160, 34) 65P/Gunn Now it is 15.8 mag (Mar. 13, Catalina Sky Survey). It will brighten up to 14 mag in 2017. In 2016, it keeps observable at 16 mag in good condition from winter to spring. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 16 11 27.14 15 27.1 2.966 3.780 138 16.1 21:47 ( 0, 70) Apr. 23 11 24.34 15 24.4 3.019 3.764 131 16.1 21:17 ( 0, 70) C/2015 T4 ( PanSTARRS ) Now it is 16.3 mag (Feb. 2, Yasukazu Ikari). It keeps 16-17 mag for a long time until 2016 autumn. In the Southern Hemisphere, it keeps observable for a long time. It will be unobservable after this in the Northern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 16 4 9.37 -30 29.4 2.842 2.405 54 16.3 20:02 ( 61,-12) Apr. 23 4 17.60 -31 7.9 2.826 2.383 54 16.2 20:10 ( 64,-17) 100P/Hartley 1 Now it is 17.4 mag (Mar. 16, Space Surveillance Telescope, Atom Site). It will brighten up to 16 mag from April to May. 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) Apr. 16 15 51.00 -26 13.4 1.110 2.014 144 16.4 2:15 ( 0, 29) Apr. 23 15 45.40 -28 30.8 1.076 2.017 151 16.3 1:42 ( 0, 27) C/2015 Y1 ( LINEAR ) It brightened rapidly, and reached up to 15.5 mag (Feb. 11, Yasukazu Ikari). It will be fading after this. It has already faded down to 16.5 mag (Mar. 7, Yasukazu Ikari). It keeps observable until August when the comet becomes fainter than 18 mag in the Northern Hemisphere. It will be unobservable in May in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 16 8 7.99 35 36.7 2.322 2.534 90 16.4 20:02 ( 99, 71) Apr. 23 8 12.53 37 9.7 2.419 2.525 84 16.5 20:10 (104, 65) C/2014 B1 ( Schwartz ) Now it is 16.7 mag (Mar. 4, Yuji Ohshima). It keeps 16-17 mag for a long time from 2016 to 2019. It keeps locating near by the equator. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 16 7 58.79 3 9.6 9.838 9.971 94 16.4 20:02 ( 43, 50) Apr. 23 8 0.02 3 25.0 9.936 9.960 88 16.5 20:10 ( 53, 45) C/2015 ER61 ( PanSTARRS ) Now it is 16.8 mag (Mar. 17, P. C. Sherrod, L. P. Sherrod). The cometary activity is confirmed recently. It is expected to brighten up to 7 mag in 2017 spring. But it locates somewhat low at the high light. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 16 11 16.76 -2 22.4 4.168 5.017 144 16.6 21:36 ( 0, 53) Apr. 23 11 13.49 -1 53.8 4.170 4.949 136 16.5 21:06 ( 0, 53) 67P/Churyumov-Gerasimenko It brightened up to 11.1 mag in 2015 autumn (Sept. 21, Seiichi Yoshida). Now it is 14.6 mag (Mar. 9, Thomas Lehmann). It keeps observable in good condition after this, while the comet will be fading gradually. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 16 11 15.80 13 17.2 1.983 2.808 137 16.6 21:36 ( 0, 68) Apr. 23 11 13.53 13 3.2 2.097 2.857 130 16.9 21:06 ( 0, 68) 180P/NEAT Now it is 16.6 mag (Feb. 19, D. Buczynski). It keeps observable at 17 mag in good condition from winter to spring. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 16 15 3.98 3 46.3 1.675 2.616 154 17.0 1:27 ( 0, 59) Apr. 23 14 58.84 3 46.1 1.668 2.630 158 17.0 0:55 ( 0, 59) 19P/Borrelly Now it is 17.9 mag (Mar. 7, D. Buczynski). In the Northern Hemisphere, it keeps observable in good condition after this while the comet will be fading. It locates low in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 16 13 36.23 30 42.7 2.466 3.291 139 17.1 0:00 ( 0, 86) Apr. 23 13 29.01 30 25.4 2.534 3.334 136 17.3 23:20 ( 0, 85) C/2012 F3 ( PanSTARRS ) It brightened up to 13-14 mag from 2014 to 2015. Now it is fading. It will be observable at 17 mag in 2016. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 16 22 48.76 -5 22.4 5.482 4.821 44 17.1 3:57 (281, 6) Apr. 23 22 54.35 -4 54.7 5.446 4.863 50 17.2 3:47 (282, 9) C/2015 O1 ( PanSTARRS ) Appearing in the morning sky. It will be observable at 13 mag for a long time from 2017 to 2018. In 2016, it keeps observable at 16-17 mag in good condition until autumn. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 16 20 24.29 -14 38.5 6.810 6.734 81 17.2 3:57 (313, 26) Apr. 23 20 23.55 -14 15.3 6.644 6.690 88 17.2 3:47 (317, 29) C/2006 S3 ( LONEOS ) It brightened up to 11-12 mag in 2012. It has already faded down to 17.0 mag (Mar. 11, Catalina Sky Survey). It is observable at 17 mag in good condition from winter to spring. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 16 10 28.84 -3 36.1 10.571 11.277 132 17.2 20:49 ( 0, 51) Apr. 23 10 26.76 -3 18.3 10.699 11.315 125 17.2 20:19 ( 0, 52) C/2014 R3 ( PanSTARRS ) Now it is 17.0 mag (Mar. 17, Jean-Francois Soulier). It brightened rapidly, and became brighter than originally expected. It keeps 17 mag until 2017. It is observable in excellent condition 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) Apr. 16 16 10.52 74 31.0 7.205 7.311 92 17.2 2:33 (180, 51) Apr. 23 15 51.14 75 1.2 7.222 7.307 90 17.2 1:47 (180, 50) P/2013 YG46 ( Spacewatch ) It was discovered around the aphelion in 2013 December. It keeps observable at 17 mag in good condition from 2016 to 2017. No observations have been reported since 2014 March. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 16 12 22.58 5 33.0 1.888 2.833 155 17.2 22:42 ( 0, 60) Apr. 23 12 17.02 5 46.7 1.896 2.799 147 17.3 22:09 ( 0, 61) C/2015 X7 ( ATLAS ) Now it is 17.0 mag (Mar. 1, Yasukazu Ikari). It keeps 17-18 mag for a long time until 2017 spring. It will be getting lower gradually after this. It will be unobservable in May in the Northern Hemisphere, or in June inthe Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 16 6 52.76 -3 18.1 3.853 3.803 79 17.2 20:02 ( 55, 35) Apr. 23 6 58.25 -1 46.9 3.930 3.788 74 17.3 20:10 ( 62, 31) C/2010 S1 ( LINEAR ) It was observed as bright as 13-14 mag for a long time from 2011 to 2014. Now it is fading. It is observable in excellent condition in the Southern Hemisphere. It locates extremely low in the Northern Hemisphere. No observations have been reported since August, 2015. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 16 18 7.91 -34 25.2 8.833 9.287 114 17.2 3:57 (353, 20) Apr. 23 18 5.29 -34 47.8 8.760 9.321 121 17.3 3:47 (357, 20) C/2014 Y1 ( PanSTARRS ) Now it is 17.4 mag (Feb. 11, Yasukazu Ikari). It was expected to brighten up to 14 mag from winter to summer. But it is much fainter actually. It will be 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) Apr. 16 16 39.07 -35 26.5 1.679 2.463 131 17.5 3:02 ( 0, 20) Apr. 23 16 38.77 -36 32.1 1.659 2.496 137 17.5 2:35 ( 0, 18) (347449) 2012 TW236 First return of a peculiar asteroid 1998 HO121. It brightened up to 16.5 mag in early 2015 (Jan. 4, M. Jaeger, E. Prosperi, S. Prosperi, W. Vollmann). It is observable at 17.5 mag again in 2016 spring. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 16 13 45.99 -3 17.8 2.672 3.670 172 17.5 0:10 ( 0, 52) Apr. 23 13 42.42 -2 41.5 2.706 3.698 168 17.6 23:34 ( 0, 52) C/2014 OE4 ( PanSTARRS ) Now it is 17.4 mag (Mar. 13, Jean-Francois Soulier). It keeps 17.5 mag from 2016 to 2017. It is observable in good condition in the Northern Hemisphere. In the Southern Hemisphere, it locates low in 2016, and it is not observable in 2017. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 16 17 27.49 25 39.0 5.989 6.456 113 17.5 3:50 ( 0, 81) Apr. 23 17 25.65 26 57.9 5.925 6.444 117 17.5 3:21 ( 0, 82) C/2016 C2 ( NEOWISE ) Now it is 17.9 mag (Mar. 3, Hidetaka Sato). It will be observable at 17.5 mag in good condition from April to May in the Southern Hemisphere. It is not observable after this in the Northern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 16 17 39.26 -59 34.8 0.861 1.560 113 17.6 3:57 (359, -4) Apr. 23 18 5.82 -65 37.4 0.860 1.560 113 17.6 3:47 (358,-10) C/2013 C2 ( Tenagra ) Very far object. Outburst occured on Feb. 20, 2015, and it brightened up to 15 mag. But it is faint as 18.1 mag now (Mar. 18, W. Hasubick). 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) Apr. 16 13 20.96 -25 24.0 8.201 9.171 164 17.7 23:40 ( 0, 30) Apr. 23 13 19.01 -25 6.6 8.205 9.174 163 17.7 23:11 ( 0, 30) P/2016 BA14 ( PanSTARRS ) It passed only 0.024 a.u. from the earth on Mar. 23, and brightened up to 12.8 mag (Mar. 22, Paul Camilleri). Almost stellar. Fading very rapidly. It has already faded down to 17.1 mag (Apr. 3, Mike Olason). It is observable in excellent condition in the Northern Hemisphere. It keeps low after this in the Southern Hemisphere. The orbital elements are similar to those of 252P/LINEAR. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 16 16 33.69 41 47.2 0.196 1.098 114 17.7 2:56 (180, 83) Apr. 23 16 35.85 40 15.9 0.250 1.139 116 18.2 2:31 (180, 85) C/2015 LC2 ( PanSTARRS ) Now it is 17.2 mag (Mar. 19, Space Surveillance Telescope, Atom Site). It becomes brighter than at the discovery in 2015. It is observable at 17.5 mag in good condition from spring to summer. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 16 15 12.04 -0 37.5 5.466 6.387 154 17.7 1:35 ( 0, 54) Apr. 23 15 8.10 0 28.0 5.455 6.406 159 17.7 1:04 ( 0, 55) C/2016 B1 ( NEOWISE ) Now it is 17.9 mag (Mar. 19, iTelescope Observatory, Siding Spring). It keeps 17-18 mag for a long time from 2016 to 2017. In 2016, it is observable in excellent condition in the Southern Hemisphere, but it locates extremely low in the Northern Hemispehre. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 16 12 2.49 -44 32.4 3.074 3.897 139 17.8 22:22 ( 0, 10) Apr. 23 12 0.01 -43 3.8 3.041 3.862 139 17.8 21:52 ( 0, 12) P/2006 F1 ( Kowalski ) Although it was bright as 17 mag at the discovery in 2006, it faded out before the perihelion passage in 2008, and it became lost. Now it is fainter than 22 mag (June 15, 2015, Erwin Schwab, Marco Micheli). Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 16 16 2.75 5 14.6 3.703 4.524 140 17.9 2:26 ( 0, 60) Apr. 23 16 0.01 5 39.7 3.650 4.517 145 17.8 1:56 ( 0, 61) 89P/Russell 2 It has not been observed yet in this apparition. It will be observable at 17 mag from spring to autumn. It will be extremely low after summer in the Northern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 16 14 54.00 -15 43.2 1.824 2.791 160 18.0 1:18 ( 0, 39) Apr. 23 14 48.62 -15 50.7 1.772 2.764 168 17.9 0:45 ( 0, 39) C/2016 A1 ( PanSTARRS ) It keeps 16 mag for a long time from 2017 to 2018. Now it is 17.6 mag (Mar. 11, Yasukazu Ikari). In the Southern Hemisphere, it keeps observable in good condition until early summer. It will be unobservable in May in the Northern Hemispehre. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 16 8 58.79 -25 48.3 6.379 6.829 112 17.9 20:02 ( 11, 28) Apr. 23 8 57.06 -24 32.8 6.432 6.798 107 17.9 20:10 ( 21, 28) C/2015 H2 ( PanSTARRS ) It keeps observable at 17.5 mag in good condition from spring to autumn in the Southern Hemisphere. It is not observable in the Northern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 16 18 15.20 -60 32.9 4.688 5.101 108 17.9 3:57 (355, -6) Apr. 23 18 17.65 -61 14.3 4.603 5.089 113 17.9 3:47 (357, -6) 332P/2015 Y2 ( Ikeya-Murakami ) First return of a periodic comet which brightened up to 8 mag in major outburst in 2010. It will be observable in excellent condition from winter to spring. However, now it is faint; the fragment A is 17.9 mag (Mar. 15, Catalina Sky Survey), the fragment C is 17.8 mag (Mar. 15, Catalina Sky Survey), the fragment H is 18.9 mag (Mar. 6, C. Rinner, F. Kugel). It will be 17 mag at best in this apparition. Fragments B to J are also observed. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 16 9 28.80 17 44.8 0.917 1.599 112 18.1 20:02 ( 9, 72) Apr. 23 9 40.44 15 30.0 0.972 1.612 109 18.4 20:10 ( 24, 69) P/2003 T12 ( SOHO ) STEREO spacecraft observed it at 8-9 mag on Feb. 21-22. It approached to the sun down to 0.58 a.u. on Mar. 9, but it was not observable around the perihelion passage. It is appearing in the evening sky now. But it will fade out very rapidly. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 16 4 26.88 14 57.0 1.367 0.908 41 20.1 20:02 ( 96, 18) Apr. 23 5 7.74 16 21.9 1.420 0.999 44 21.3 20:10 ( 96, 20)