Weekly Information about Bright Comets (2016 Mar. 12: North)

Japanese version Home page	Updated on March 15, 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 Now it is extremely bright as 6.6 mag (Mar. 14, Marco Goiato). It will pass only 0.036 a.u. from the earth on Mar. 21-22. In this apparition, it keeps observable in excellent condition both brightening and fading period. In the Northern Hemisphere, it will be unobservable temporarily in mid March. 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) Mar. 12 5 49.92 -48 2.5 0.068 0.997 90 7.6 19:28 ( 10, 5) Mar. 19 7 6.21 -82 35.8 0.039 0.997 91 6.5 20:49 ( 0,-31) C/2013 X1 ( PanSTARRS ) Now it is very bright as 8.7 mag (Feb. 14, Thomas Lehmann). It brightened temporarily in outburst in early January, but it returned to the original brightness. 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 not observable. In the Northern Hemisphere, it will appear in the morning sky again in late April, but it locates low in the south around the high light. In the Southern Hemisphere, it will be observable in excellent condition after appearing in the morning sky again in mid April. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 12 23 34.77 5 32.4 2.415 1.441 8 7.9 19:28 (106,-12) Mar. 19 23 34.73 4 42.8 2.384 1.402 7 7.7 4:40 (256,-11) C/2014 S2 ( PanSTARRS ) Now it is so bright as 9.2 mag (Mar. 11, Carlos Labordena). It is observable at 9-10 mag until spring 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) Mar. 12 13 43.53 70 59.7 1.847 2.365 109 9.2 2:26 (180, 54) Mar. 19 12 59.24 69 36.7 1.872 2.403 110 9.3 1:15 (180, 55) C/2013 US10 ( Catalina ) Now it is 9.9 mag (Mar. 11, 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 observable in excellent condition in the Northern Hemisphere. It is not observable after this in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 12 4 11.08 54 11.9 2.022 2.117 81 9.8 19:28 (137, 57) Mar. 19 4 14.71 52 20.1 2.236 2.208 75 10.2 19:35 (132, 53) 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 11.5 mag (Mar. 10, Marco Goiato). It will be getting lower after this. It will be unobservable in mid March in the Southern Hemisphere, or in late April in the Northern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 12 3 54.86 21 38.9 1.040 1.160 69 11.7 19:28 ( 83, 50) Mar. 19 3 42.73 26 0.5 1.215 1.137 60 11.4 19:35 ( 95, 42) C/2014 W2 ( PanSTARRS ) Now it is 13.1 mag (Mar. 10, Thomas Lehmann). 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 in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 12 20 34.62 65 33.4 2.735 2.670 75 12.2 4:51 (210, 41) Mar. 19 20 33.03 66 15.4 2.738 2.672 75 12.2 4:40 (209, 43) 81P/Wild 2 Now it is 12.6 mag (Mar. 9, Thomas Lehmann). It will brighten up to 11 mag from spring to summer. In the Northern Hemisphere, it keeps observable in good condition while the comet will be brightening. It locates somewhat low in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 12 5 23.50 21 35.3 1.765 2.024 89 12.6 19:28 ( 60, 67) Mar. 19 5 32.62 21 55.5 1.806 1.986 85 12.5 19:35 ( 69, 63) 116P/Wild 4 Now it is 13.4 mag (Feb. 11, Yasukazu Ikari). It will brighten up to 13 mag from winter to spring. It will be 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) Mar. 12 15 50.61 -21 21.9 1.663 2.228 111 13.3 4:31 ( 0, 34) Mar. 19 15 55.24 -21 51.6 1.599 2.238 117 13.3 4:08 ( 0, 33) P/2016 BA14 ( PanSTARRS ) Now it is 16.4 mag (Mar. 11, Mike Olason). It will pass only 0.024 a.u. from the earth on Mar. 23. It is expected to brighten very rapidly and reach up to 12 mag. It is observable in excellent condition in the Northern Hemisphere. In the Southern Hemisphere, it keeps observable in excellent condition until mid March, but it will be low after that. The orbital elements are similar to those of 252P/LINEAR. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 12 6 13.49 -29 42.2 0.089 1.010 97 15.3 19:28 ( 8, 25) Mar. 19 7 21.58 -12 36.3 0.038 1.010 111 13.4 19:42 ( 0, 45) 104P/Kowal 2 Now it is bright as 13.8 mag (Feb. 27, Michael Jager). Although it was faint as 19.0 mag in January (Jan. 10, B. Lutkenhoner), it brightened rapidly. It is observable at 14 mag until spring. But it locates extremely low in the Southern Hemisphere. 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) Mar. 12 1 50.75 10 46.7 1.813 1.197 37 13.8 19:28 ( 90, 19) Mar. 19 2 17.01 12 17.0 1.807 1.185 37 13.6 19:35 ( 93, 18) 9P/Tempel 1 Now it is 15.0 mag (Mar. 7, Katsumi Yoshimoto). Brightening very rapidly, although it is somewhat fainter than this ephemeris. It will 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) Mar. 12 12 19.15 19 11.8 1.078 2.040 159 13.9 1:01 ( 0, 74) Mar. 19 12 13.11 20 0.6 1.036 2.001 160 13.6 0:27 ( 0, 75) 29P/Schwassmann-Wachmann 1 Appearing in the morning sky. It brightened in outburst on Mar. 14 up to 14.8 mag (Jean-Francois Soulier). Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 12 19 35.57 -25 59.8 6.385 5.955 60 13.8 4:51 (314, 12) Mar. 19 19 39.73 -25 50.7 6.283 5.953 66 13.8 4:40 (316, 14) 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 14.6 mag (Jan. 26, Ken-ichi Kadota). 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) Mar. 12 18 30.89 22 36.2 5.184 5.056 77 14.0 4:51 (282, 57) Mar. 19 18 31.82 23 9.2 5.169 5.121 81 14.1 4:40 (285, 61) 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) Mar. 12 0 59.69 -2 25.6 2.732 1.854 22 14.2 19:28 ( 87, 1) Mar. 19 1 16.07 -0 43.5 2.798 1.896 20 14.4 19:35 ( 91, -2) 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) Mar. 12 23 42.70 -4 42.6 3.049 2.058 3 14.3 19:28 ( 96,-16) Mar. 19 23 57.35 -3 13.6 3.092 2.099 2 14.5 19:35 (100,-19) 77P/Longmore Now it is 14.9 mag (Mar. 7, Katsumi Yoshimoto). 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) Mar. 12 13 37.30 -7 50.7 1.481 2.372 146 14.9 2:19 ( 0, 47) Mar. 19 13 31.96 -8 51.1 1.429 2.364 154 14.7 1:46 ( 0, 46) 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) Mar. 12 23 5.24 -3 16.1 5.902 4.914 5 14.8 4:51 (265,-13) Mar. 19 23 12.42 -2 45.5 5.883 4.909 10 14.8 4:40 (266,-11) 53P/Van Biesbroeck Now it is 16.2 mag (Feb. 17, La Silla--TRAPPIST). 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) Mar. 12 19 17.84 -16 58.9 2.747 2.462 63 15.1 4:51 (311, 22) Mar. 19 19 30.45 -16 31.2 2.666 2.454 66 15.0 4:40 (312, 23) 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 will appear in the evening sky at 17 mag in late March. But it will fade out very rapidly. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 12 0 39.30 0 41.3 1.437 0.579 17 15.4 19:28 ( 92, -1) Mar. 19 1 25.38 4 4.2 1.381 0.607 23 15.8 19:35 ( 93, 3) 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) Mar. 12 23 14.41 6 43.3 3.121 2.153 10 15.6 4:51 (255, -9) Mar. 19 23 28.69 8 4.0 3.074 2.104 10 15.4 4:40 (254, -8) 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) Mar. 12 11 44.51 12 22.7 1.573 2.558 170 15.4 0:26 ( 0, 67) Mar. 19 11 36.92 12 51.4 1.630 2.609 166 15.7 23:46 ( 0, 68) 118P/Shoemaker-Levy 4 Now it is 16.2 mag (Feb. 7, Hiroshi Abe). It will brighten up to 14 mag in summer. But it is not observable at the highlight. It keeps observable until March while the comet will be brightening gradually up to 15-16 mag. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 12 2 22.30 7 10.7 2.715 2.123 44 15.8 19:28 ( 82, 23) Mar. 19 2 36.03 8 26.4 2.749 2.104 41 15.6 19:35 ( 87, 20) 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 14.3 mag still now (Feb. 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) Mar. 12 14 15.13 -29 55.4 3.261 3.954 128 15.6 2:56 ( 0, 25) Mar. 19 14 13.43 -30 7.4 3.212 3.979 134 15.6 2:27 ( 0, 25) 321P/SOHO It will graze the surface of the sun on Apr. 10. It will pass only 0.16 a.u. from the earth on Mar. 13, and will be observable in excellent condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 12 18 42.17 8 55.9 0.164 0.957 72 15.9 4:51 (300, 47) Mar. 19 22 31.86 14 36.8 0.225 0.798 25 15.8 4:40 (258, 8) C/2015 V2 ( Johnson ) Now it is 15.9 mag (Feb. 11, Catalina Sky Survey). 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) Mar. 12 6 43.25 62 41.7 5.088 5.372 101 15.8 19:28 (178, 62) Mar. 19 6 42.08 62 12.1 5.114 5.311 95 15.8 19:35 (170, 62) C/2013 V4 ( Catalina ) Now it is 15.6 mag (Feb. 11, Yasukazu Ikari). 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) Mar. 12 3 4.34 72 11.6 5.350 5.318 82 15.9 19:28 (160, 43) Mar. 19 3 13.50 72 13.7 5.427 5.330 79 15.9 19:35 (159, 41) 65P/Gunn Now it is 16.3 mag (Feb. 11, Yasukazu Ikari). 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) Mar. 12 11 48.65 14 8.1 2.883 3.861 168 16.1 0:30 ( 0, 69) Mar. 19 11 43.91 14 34.5 2.872 3.845 165 16.1 23:53 ( 0, 70) C/2015 Y1 ( LINEAR ) Now it is 15.5 mag (Feb. 11, Yasukazu Ikari). It brightened rapidly, and became brighter than originally expected. It keeps observable at 16 mag in good condition until May. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 12 8 8.19 24 0.5 1.882 2.607 127 16.3 20:46 ( 0, 79) Mar. 19 8 4.96 26 55.7 1.956 2.588 118 16.3 20:16 ( 0, 82) C/2006 S3 ( LONEOS ) It brightened up to 11-12 mag in 2012. It has already faded down to 17.1 mag (Feb. 8, Catalina Sky Survey). It is observable at 16-17 mag in good condition from winter to spring. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 12 10 42.90 -5 15.0 10.125 11.090 165 16.4 23:20 ( 0, 50) Mar. 19 10 39.71 -4 55.0 10.184 11.127 160 16.4 22:50 ( 0, 50) C/2014 B1 ( Schwartz ) Now it is 16.1 mag (Feb. 3, Yasukazu Ikari). 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) Mar. 12 7 57.36 1 38.1 9.397 10.028 127 16.4 20:35 ( 0, 57) Mar. 19 7 57.02 1 57.6 9.473 10.016 120 16.4 20:08 ( 0, 57) 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 in good condition for a long time. In the Northern Hemisphere, it is observable only until March. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 12 3 42.29 -28 49.2 2.799 2.545 65 16.5 19:28 ( 41, 12) Mar. 19 3 45.73 -29 0.1 2.825 2.513 61 16.5 19:35 ( 46, 8) 19P/Borrelly Now it is 17.2 mag (Feb. 18, 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) Mar. 12 14 12.09 28 47.7 2.299 3.071 133 16.5 2:53 ( 0, 84) Mar. 19 14 6.03 29 34.6 2.309 3.116 137 16.6 2:20 ( 0, 84) C/2015 B2 ( PanSTARRS ) Now it is 17.7 mag (Feb. 5, La Silla--TRAPPIST). It keeps 16.5 mag for a long time in 2016, and it will be observable in excellent condition in the Southern Hemisphere. It is hardly observable in the Northern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 12 3 35.72 -49 24.8 3.631 3.410 69 16.6 19:28 ( 29, -5) Mar. 19 3 32.54 -47 31.1 3.674 3.400 66 16.6 19:35 ( 35, -7) 100P/Hartley 1 Now it is 17.6 mag (Feb. 6, M. Jaeger, E. Prosperi, S. Prosperi, W. Vollmann). It will brighten up to 16 mag from March to June. 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) Mar. 12 15 49.36 -15 46.8 1.410 2.017 112 16.9 4:30 ( 0, 39) Mar. 19 15 53.24 -17 39.4 1.337 2.014 118 16.8 4:06 ( 0, 37) 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) Mar. 12 15 14.43 2 42.5 1.867 2.557 123 17.0 3:55 ( 0, 58) Mar. 19 15 14.87 2 58.1 1.812 2.567 129 17.0 3:28 ( 0, 58) C/2015 X7 ( ATLAS ) Now it is 16.8 mag (Feb. 11, Yasukazu Ikari). It keeps 17-18 mag for a long time until 2017 spring. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 12 6 35.31 -12 14.3 3.507 3.891 105 17.1 19:28 ( 5, 43) Mar. 19 6 37.29 -10 18.6 3.567 3.871 100 17.1 19:35 ( 16, 43) C/2015 X4 ( Elenin ) Now it is 16.9 mag (Feb. 5, Hiroshi Abe). It keeps observable in good condition for a while. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 12 5 45.59 11 35.6 3.343 3.564 94 17.1 19:28 ( 36, 62) Mar. 19 5 50.30 11 19.1 3.458 3.582 88 17.2 19:35 ( 47, 58) 230P/LINEAR It kept brightening even after the perihelion passage, and brightened up to 13.0 mag (Dec. 21, Juan Jose Gonzalez). Now it is fading rapidly. It has already faded down to 15.4 mag (Feb. 7, Hiroshi Abe). Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 12 6 27.77 28 24.3 1.377 1.889 104 17.2 19:28 ( 36, 82) Mar. 19 6 41.12 28 52.9 1.483 1.930 100 17.4 19:35 ( 58, 79) C/2015 YG1 ( NEOWISE ) Now it is 16.8 mag (Feb. 7, Catalina Sky Survey). It must have been observable at 16-17 mag in good condition from summer to autumn in the Northern Hemisphere, but it was not discovered. It will be fading after this, and will be fainter than 18 mag in April. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 12 11 4.75 28 8.5 1.810 2.740 154 17.2 23:41 ( 0, 83) Mar. 19 10 52.21 26 24.4 1.880 2.788 150 17.3 23:01 ( 0, 81) 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. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 12 18 13.95 -32 34.5 9.260 9.119 78 17.2 4:51 (333, 16) Mar. 19 18 13.66 -32 55.7 9.172 9.152 85 17.2 4:40 (337, 18) C/2014 R3 ( PanSTARRS ) Now it is 17.1 mag (Jan. 17, K. Sarneczky, P. Szekely, T. Szalai). 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) Mar. 12 17 9.98 69 55.5 7.187 7.337 94 17.2 4:51 (189, 54) Mar. 19 17 2.99 71 0.1 7.182 7.331 94 17.2 4:40 (185, 54) 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) Mar. 12 12 52.28 3 14.1 2.048 2.998 159 17.4 1:34 ( 0, 58) Mar. 19 12 47.10 3 45.3 1.988 2.965 166 17.2 1:01 ( 0, 59) C/2015 W1 ( Gibbs ) Now it is 17.2 mag (Feb. 11, Yuji Ohshima). It keeps observable at 17-18 mag until summer in the Northern Hemispehre. It is not observable after March in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 12 5 52.72 48 30.2 2.030 2.358 96 17.3 19:28 (146, 73) Mar. 19 5 46.98 49 60.0 2.125 2.333 89 17.3 19:35 (138, 67) 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 17.8 mag (Feb. 24, Michael Jager), the fragment C is 17.8 mag (Feb. 24, Michael Jager), the fragment H is 18.5 mag (Feb. 24, Michael Jager). It will be 17 mag at best in this apparition. Fragments B to I are also observed in early February. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 12 8 49.20 28 50.4 0.710 1.574 134 17.4 21:28 ( 0, 84) Mar. 19 8 53.76 26 42.7 0.741 1.573 129 17.5 21:05 ( 0, 81) 211P/Hill It brightened up to 15.7 mag in winter (Jan. 14, Toshiyuki Takahashi). Now it is fading. It has already faded down to 17.2 mag (Feb. 15, H. Boussier). It will be fainter than 18 mag in April. It locates somewhat low in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 12 7 49.93 29 28.2 1.687 2.369 121 17.4 20:28 ( 0, 84) Mar. 19 7 53.44 29 52.9 1.767 2.375 115 17.5 20:05 ( 0, 85) 204P/LINEAR-NEAT It brightened up to 16.0 mag in January (Jan. 18, Catalina Sky Survey). It will be fading after this, and will be fainter than 18 mag in Apri. It locates somewhat low in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 12 8 18.59 25 38.7 1.301 2.076 129 17.4 20:57 ( 0, 81) Mar. 19 8 23.15 25 30.4 1.380 2.098 123 17.6 20:34 ( 0, 80) C/2015 ER61 ( PanSTARRS ) Now it is 17.5 mag (Feb. 16, H. Nohara). 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) Mar. 12 11 37.38 -4 51.9 4.365 5.350 171 17.5 0:19 ( 0, 50) Mar. 19 11 33.08 -4 24.1 4.295 5.284 172 17.4 23:43 ( 0, 51) 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) Mar. 12 16 17.97 -29 1.4 1.880 2.327 103 17.4 4:51 (358, 26) Mar. 19 16 24.98 -30 23.4 1.830 2.350 108 17.4 4:38 ( 0, 25) 194P/LINEAR Now it is 18.7 mag (Jan. 14, Space Surveillance Telescope, Atom Site). It tends to be brightest after the perihelion passage. It is observable at 17 mag in excellent condition until March 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) Mar. 12 6 15.71 34 22.8 1.196 1.700 101 17.5 19:28 ( 86, 83) Mar. 19 6 32.28 33 0.4 1.251 1.706 98 17.6 19:35 ( 82, 79) C/2014 OE4 ( PanSTARRS ) Now it is 17.4 mag (Feb. 11, Space Surveillance Telescope, Atom Site). 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) Mar. 12 17 28.18 19 2.0 6.421 6.520 91 17.8 4:51 (308, 66) Mar. 19 17 29.13 20 18.8 6.323 6.507 96 17.7 4:40 (313, 70) 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 18.5 mag now (Feb. 5, La Silla--TRAPPIST). . 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) Mar. 12 13 30.07 -26 19.6 8.393 9.160 138 17.7 2:11 ( 0, 29) Mar. 19 13 28.53 -26 13.5 8.329 9.162 144 17.7 1:42 ( 0, 29) C/2013 G9 ( Tenagra ) It brightened up to 16 mag in early 2015. Now it is 17.7 mag (Feb. 9, La Silla--TRAPPIST). It is observable at 18 mag from winter to spring. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 12 9 6.75 -21 24.9 5.408 6.174 137 17.8 21:44 ( 0, 34) Mar. 19 9 0.10 -20 33.6 5.485 6.200 132 17.8 21:10 ( 0, 34) (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) Mar. 12 14 0.58 -6 34.6 2.709 3.537 140 17.9 2:42 ( 0, 48) Mar. 19 13 58.68 -5 57.8 2.676 3.563 148 17.8 2:12 ( 0, 49) 269P/2012 R2 ( Jedicke ) It brightened up to 15.2 mag in early 2015 (Feb. 24, Toshiyuki Takahashi). Now it is 17.5 mag (Dec. 6, Catalina Sky Survey). It will be fainter than 18 mag in April. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 12 11 25.80 -5 2.1 3.873 4.858 171 17.9 0:07 ( 0, 50) Mar. 19 11 22.55 -4 38.7 3.893 4.877 170 17.9 23:32 ( 0, 50)