Weekly Information about Bright Comets (2015 Feb. 28: North)

Japanese version Home page	Updated on March 1, 2015
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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.

C/2014 Q2 ( Lovejoy ) It brightened up to 3.7 mag and became a naked eye comet in mid January (Jan. 13, Marek Biely). It is bright as 5.5 mag still now (Feb. 28, Maik Meyer). It kept brightening even after the perihelion passage. However, it will be getting fainter gradually after this. In the Northern Hemisphere, it keeps observable in good condition after this until the comet fades out. It is not observable in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 28 1 32.59 54 25.1 1.287 1.362 72 5.9 19:17 (135, 42) Mar. 7 1 28.02 57 1.7 1.409 1.399 68 6.3 19:23 (139, 37) 88P/Howell Now it is bright as 10.8 mag (Feb. 22, Marco Goiato). It will brighten up to 8-9 mag in 2015 spring. In the Southern Hemisphere, it will be getting higher gradually after this. In the Northern Hemisphere, it keeps extremely low and hard to observe until June. It will be observable in good condition after June while the comet will be fading gradually. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 28 19 44.43 -22 47.4 1.936 1.419 44 9.7 5:07 (305, 8) Mar. 7 20 10.57 -21 51.0 1.895 1.399 45 9.5 4:58 (303, 7) C/2015 C2 ( SWAN ) Bright new comet. Now it is 11.5 mag (Feb. 26, Michael Mattiazzo). It will be unobservable soon in the Southern Hemisphere. It keeps locating extremely low and hard to observe also in the Northern Hemisphere. It will be getting higher gradually after May, but the comet will be fainter than 15 mag. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 28 0 46.88 -15 0.0 1.346 0.718 31 11.7 19:17 ( 70, 3) Mar. 7 0 57.53 -4 35.6 1.432 0.714 27 11.8 19:23 ( 82, 5) C/2013 A1 ( Siding Spring ) The brightness evolution has slowed down before the perihelion passage, and it faded down to 11.6 mag in late October (Oct. 26, Todd Augustyniak). However, an outburst occured around Nov. 10-12, and it brightened by 2 mag. It is bright as 11.7 mag still now (Feb. 16, Jakub Cerny). In the Northern Hemisphere, it will be observable in excellent condition after this while the comet will be fading. It is observable in the morning low sky until early April also in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 28 17 58.99 25 34.2 2.243 2.231 76 11.7 5:07 (277, 58) Mar. 7 17 53.43 29 39.7 2.201 2.301 82 11.8 4:58 (274, 64) 15P/Finlay It brightened very rapidly in outburst up to 8.8 mag in mid December (Dec. 19, Marco Goiato). Then it faded down to 10.7 mag (Jan. 14, Chris Wyatt). However, it brightened in outburst again on Jan. 16, and brightened up to 7.0 mag (Jan. 17, Maik Meyer). Now it is 11.1 mag and diffuse (Feb. 15, Jakub Cerny). In the Northern Hemisphere, it will be geting higher gradually. In the Southern Hemisphere, it keeps locating extremely low after this. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 28 1 52.96 16 23.0 1.648 1.321 53 12.1 19:17 ( 86, 35) Mar. 7 2 19.57 18 55.7 1.730 1.385 53 12.7 19:23 ( 90, 35) C/2012 K1 ( PanSTARRS ) It brightened up to 6.9 mag in autumn (Oct. 17, Marco Goiato). Now it is fading. But it is bright as 12.6 mag still now (Feb. 9, Chris Wyatt). In the Southern Hemisphere, it is getting lower and it will be unobservable temporarily in March. But it will be observable in good condition again after April. It will be observable again in mid June also in the Northern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 28 0 21.34 -21 21.7 3.720 2.876 27 12.5 19:17 ( 68, -6) Mar. 7 0 24.71 -20 29.7 3.835 2.955 23 12.6 19:23 ( 73,-11) 7P/Pons-Winnecke It was observed at 16.0 mag in December (Dec. 22, Ken-ichi Kadota). It must have brightened up to 11 mag from January to February, but no observations have been reported. In the Southern Hemisphere, it is observable in the morning sky after this while the comet will be fading. It is hardly observable in the Northern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 28 20 59.27 -21 25.0 2.075 1.288 28 12.6 5:07 (293, -5) Mar. 7 21 25.34 -20 57.5 2.086 1.313 29 13.0 4:58 (291, -6) C/2013 US10 ( Catalina ) It brightened up to 13.6 mag until the end of 2014, brighter than originally expected (Dec. 19, Chris Wyatt). It is expected to brighten up to 4 mag from autumn to winter in 2015. Now it is not observable. In the Southern Hemisphere, it will be observable in good condition again after late March. In the Northern Hemisphere, it is hardly observable until 2015 December. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 28 22 51.46 -22 22.2 4.789 3.837 14 12.7 19:17 ( 79,-24) Mar. 7 22 55.95 -22 8.2 4.698 3.759 16 12.6 4:58 (281,-25) 19P/Borrelly Now it is 15.1 mag (Feb. 1, Taras Prystavski). It will brighten up to 10.5 mag in 2015 spring. But the condition of this apparition is bad. It is already unobservable in the Northern Hemisphere. It will be unobservable in mid March also in the Southern Hemisphere. In the Northern Hemisphere, it will be observable after 2015 autumn while the comet will be fading. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 28 0 22.33 -17 36.1 2.521 1.689 26 13.2 19:17 ( 71, -3) Mar. 7 0 39.14 -14 50.1 2.499 1.645 24 12.9 19:23 ( 76, -5) 6P/d'Arrest It will brighten up to 11 mag in spring. But the condition is bad in this apparition. In the Southern Hemisphere, it will become observable in the morning extremely low sky after late April. It will not be observable until late July in the Northern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 28 21 48.96 -12 24.4 2.304 1.362 13 13.7 5:07 (278,-10) Mar. 7 22 13.37 -11 22.0 2.299 1.362 14 13.2 4:58 (277,-10) C/2012 F3 ( PanSTARRS ) Now it is 14.5 mag (Jan. 20, Taras Prystavski). In 2015, it keeps 13 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) Feb. 28 18 22.79 -13 0.4 3.798 3.474 63 13.8 5:07 (313, 28) Mar. 7 18 31.57 -12 42.1 3.708 3.468 68 13.7 4:58 (315, 30) C/2014 R1 ( Borisov ) It brightened up to 10.6 mag from autumn to winter (Nov. 29, Seiichi Yoshida). Now it is 12.8 mag (Jan. 24, Chris Wyatt). It will be fading graudually after this. But it keeps observable for a long time until the comet fades out. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 28 17 13.72 -14 21.5 1.871 1.964 80 13.7 5:07 (331, 36) Mar. 7 17 22.34 -14 28.1 1.860 2.033 85 14.0 4:58 (333, 36) 29P/Schwassmann-Wachmann 1 Now it is 15 mag (Feb. 26, Richard Miles). It is getting higher gradually in the morning sky. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 28 17 45.44 -30 47.0 6.295 6.065 72 13.9 5:07 (331, 18) Mar. 7 17 48.88 -30 53.2 6.185 6.063 78 13.8 4:58 (334, 19) C/2015 D1 ( SOHO ) The spacecraft observed it brightened rapidly from 9 mag up to 2 mag when passing near by the sun. It will fade out very quickly. In the Northern Hemisphere, it will be observable and getting higher rapidly. It is not observable in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 28 23 44.28 11 20.2 0.839 0.423 24 13.9 19:17 (100, 7) Mar. 7 0 40.83 27 16.7 0.899 0.649 39 15.9 19:23 (111, 20) C/2014 Q1 ( PanSTARRS ) It will approach to the sun down to 0.3 a.u. in 2015 July, and it is expected to be bright. Now it is 15.6 mag (Jan. 13, Yasukazu Ikari). Hard to observe for a while after this. In the Southern Hemisphere, it will be observable after mid July in 2015, and keeps observable while the comet will be fading gradually. 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) Feb. 28 23 39.16 -12 12.9 3.471 2.525 14 14.2 19:17 ( 81, -9) Mar. 7 23 47.09 -10 43.8 3.390 2.424 10 14.0 19:23 ( 86,-13) 32P/Comas Sola Now it is 13.4 mag (Feb. 15, Jakub Cerny). It is fainter than originally predicted by 2 mag. In the Northern Hemisphere, it keeps observable at 14 mag in excellent condition from 2014 summer to 2015 spring. It locates somewhat low in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 28 11 40.35 20 10.0 1.363 2.323 161 14.1 1:12 ( 0, 75) Mar. 7 11 34.86 20 28.6 1.385 2.354 163 14.2 0:39 ( 0, 75) 218P/LINEAR Now it is 17.4 mag (Jan. 18, Catalina Sky Survey). It is expected to brighten rapidly and will be observable in good condition at 13 mag from March to May. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 28 15 17.33 -17 6.2 0.664 1.347 107 15.2 4:48 ( 0, 38) Mar. 7 15 47.69 -18 16.0 0.610 1.308 107 14.8 4:50 ( 0, 37) 17P/Holmes It brightened up to 2 mag by unusual major outburst in 2007. It brightened up to 12.6 mag in this apparition (June 25, Taras Prystavski). It faded down to 17-18 mag, but it suddenly brightened in outburst on Jan. 26, and brightened up to 13.2 mag (Jan. 29, Uwe Pilz). Now it is 14.7 mag (Feb. 7, Sandor Szabo). In the Northern Hemisphere, it keeps observable in good condition. In the Southern Hemisphere, it keeps extremely low. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 28 4 28.04 39 8.9 2.927 3.132 92 15.0 19:17 (110, 74) Mar. 7 4 35.49 38 34.8 3.051 3.162 87 15.4 19:23 (107, 69) C/2006 S3 ( LONEOS ) It brightened up to 11-12 mag in 2012. It has already faded down to 15.5 mag (Jan. 17, Taras Prystavski). It keeps observable at 15 mag in good condition until 2015 summer. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 28 11 39.66 -9 11.0 8.140 9.062 157 15.1 1:11 ( 0, 46) Mar. 7 11 35.35 -8 49.2 8.141 9.100 164 15.1 0:40 ( 0, 46) C/2013 C2 ( Tenagra ) Very far object. However, outburst occured on Feb. 20, and now it brightened up to 15.8 mag (Feb. 24, Jean-Francois Soulier). It is also visible visually at 14.0 mag (Feb. 27, Marco Goiato). It locates high 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) Feb. 28 12 18.57 -23 49.5 8.375 9.157 140 15.2 1:50 ( 0, 31) Mar. 7 12 16.89 -23 44.2 8.314 9.155 146 15.2 1:21 ( 0, 31) C/2014 N3 ( NEOWISE ) Now it is 14.5 mag (Dec. 24, Taras Prystavski). It keeps 15 mag for a long time from 2014 to 2015. It is observable in excellent condition in 2014 in the Southern Hemisphere, or in 2015 in the Northern Hemisphere. It becomes unobservable temporarily from March to May. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 28 0 40.99 -2 33.3 4.708 3.884 30 15.3 19:17 ( 80, 9) Mar. 7 0 46.10 -0 56.5 4.760 3.883 24 15.3 19:23 ( 86, 4) 22P/Kopff Now it is 15.6 mag (Jan. 19, Catalina Sky Survey). It will brighten up to 11 mag in 2015 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) Feb. 28 13 13.53 -1 5.9 1.818 2.663 141 15.5 2:45 ( 0, 54) Mar. 7 13 11.56 -0 32.5 1.723 2.621 148 15.3 2:15 ( 0, 54) C/2014 AA52 ( Catalina ) Now it is 15.3 mag (Jan. 17, Taras Prystavski). The brightness evolution is somewhat slow. It keeps 15-16 mag for a long time from 2014 autumn to 2015 autumn. In the Southern Hemisphere, it keeps observable in excellent condition for a long time. In the Northern Hemisphere, it is unobservable until 2015 June. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 28 0 52.40 -43 12.0 2.575 2.003 45 15.3 19:17 ( 46,-13) Mar. 7 0 52.14 -40 15.6 2.632 2.005 41 15.4 19:23 ( 52,-17) C/2014 W9 ( PanSTARRS ) It brightened rapidly. Now it is 15.7 mag, much brighter than origianlly predicted (Jan. 31, Hidetaka Sato). It keeps 15 mag in March. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 28 15 28.27 -17 39.9 1.031 1.601 104 15.4 4:59 ( 0, 37) Mar. 7 15 41.53 -19 47.3 0.999 1.613 108 15.4 4:45 ( 0, 35) C/2014 A4 ( SONEAR ) Now it is 15.5 mag (Jan. 16, Taras Prystavski). It will brighten up to 14 mag from 2015 to 2016. It is observable in good 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) Feb. 28 2 48.08 -10 12.4 4.873 4.472 60 15.4 19:17 ( 52, 28) Mar. 7 2 47.64 -8 54.0 4.954 4.452 54 15.5 19:23 ( 60, 23) C/2014 W11 ( PanSTARRS ) Brightening very rapidly. Now it is so bright as 14.5 mag and visible visually (Feb. 7, Mike Wolle). It keeps observable at 15 mag in good condition from winter to spring. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 28 8 51.49 10 22.0 2.612 3.522 152 15.5 22:19 ( 0, 65) Mar. 7 8 48.80 10 18.7 2.649 3.510 145 15.5 21:49 ( 0, 65) 201P/LONEOS Now it is 14.6 mag (Jan. 21, Catalina Sky Survey). It keeps observable in good condition after this in the Northern Hemisphere, but it will be fading gradually. It locates low in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 28 3 13.27 24 36.0 1.350 1.434 73 15.5 19:17 ( 83, 55) Mar. 7 3 38.84 26 14.5 1.409 1.463 72 15.7 19:23 ( 87, 54) C/2010 S1 ( LINEAR ) Now it is 14.5 mag (Nov. 19, Taras Prystavski). It will be observable at 15-16 mag in good condition again in 2015. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 28 18 58.85 -16 56.6 7.946 7.421 54 15.6 5:07 (308, 19) Mar. 7 18 59.85 -17 10.3 7.869 7.450 61 15.6 4:58 (312, 22) C/2013 V2 ( Borisov ) Now it is 15.3 mag (Jan. 24, Taras Prystavski). In the Northern Hemisphere, it keeps 15-16 mag and observable in excellent condition for a long time until early summer in 2015. It locates somewhat low in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 28 13 31.34 34 38.8 2.977 3.724 133 15.6 3:03 ( 0, 90) Mar. 7 13 27.71 34 48.2 2.964 3.746 136 15.6 2:32 ( 0, 90) 110P/Hartley 3 Now it is bright as 13.8 mag (Feb. 15, Jakub Cerny). It keeps 14-15 mag until February, and it will be observable in excellent condition in the Northern Hemisphere. It locates somewhat low in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 28 6 23.01 21 4.7 1.911 2.514 116 15.6 19:52 ( 0, 76) Mar. 7 6 26.89 20 38.1 1.999 2.522 110 15.8 19:28 ( 0, 76) 70P/Kojima Now it is 15.7 mag (Jan. 17, Taras Prystavski). It keeps observable in good condition after this, but it will be fading gradually. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 28 12 16.61 7 58.3 1.317 2.260 156 16.0 1:48 ( 0, 63) Mar. 7 12 12.58 8 49.6 1.316 2.285 163 16.0 1:17 ( 0, 64) C/2013 X1 ( PanSTARRS ) Now it is 15.7 mag (Jan. 16, Taras Prystavski). 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 keeps observable in good condition until 2015 spring when the comet will brighten up to 15.5 mag. In the Southern Hemisphere, it keeps low for a long time until 2016 spring. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 28 4 52.07 34 55.4 4.944 5.156 96 16.1 19:17 ( 94, 78) Mar. 7 4 48.99 34 37.4 5.006 5.091 89 16.1 19:23 ( 96, 71) C/2013 V4 ( Catalina ) Now it is 15.8 mag (Jan. 11, Y. Sugiyama). It keeps observable at 15-16 mag for a long time from 2015 to 2016. In the Northern Hemisphere, it is observable in excellent condition. It locates somewhat low in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 28 2 58.57 30 59.0 5.658 5.447 72 16.1 19:17 ( 96, 54) Mar. 7 3 0.88 31 33.0 5.748 5.432 66 16.1 19:23 (100, 48) 116P/Wild 4 Now it is 17.5 mag (Jan. 11, F. Garcia). It will brighten up to 13 mag in 2016. In the Northern Hemisphere, it will be observable in excellent condition in this winter. It locates somewhat low in the Southern Hemisphere. It is fainter than this ephemeris recently. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 28 5 42.64 27 35.8 2.551 2.997 107 16.3 19:17 ( 10, 82) Mar. 7 5 45.32 27 28.4 2.621 2.971 100 16.3 19:23 ( 49, 79) 4P/Faye Now it is 14.7 mag (Jan. 20, Taras Prystavski). It keeps observable for a long time after this while the comet will be fading gradually. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 28 9 17.21 4 34.1 1.993 2.938 158 16.5 22:45 ( 0, 60) Mar. 7 9 13.16 5 20.7 2.070 2.979 151 16.6 22:13 ( 0, 60) 269P/2012 R2 ( Jedicke ) Now it is 15.4 mag (Jan 17, Mt. Lemmon Survey). It keeps observable at 16-17 mag in good condition for a while. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 28 7 54.00 13 45.7 3.328 4.123 138 16.5 21:22 ( 0, 69) Mar. 7 7 52.90 13 53.5 3.406 4.129 131 16.6 20:54 ( 0, 69) C/2013 V5 ( Oukaimeden ) It brightened up to 6.5 mag in September (Sept. 21, Marco Goiato). Now it is fading. It has already faded down to 15.6 mag (Jan. 20, Taras Prystavski). 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) Feb. 28 15 26.95 12 58.2 2.149 2.656 109 16.5 4:58 ( 0, 68) Mar. 7 15 15.05 15 36.1 2.129 2.747 118 16.7 4:19 ( 0, 70) C/2013 G9 ( Tenagra ) Now it is 16.4 mag (Jan. 20, Taras Prystavski). It keeps 17-18 mag for a long time from 2014 to 2016. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 28 12 31.11 -24 2.7 4.569 5.348 138 16.8 2:03 ( 0, 31) Mar. 7 12 21.51 -23 53.2 4.504 5.351 145 16.8 1:26 ( 0, 31) 40P/Vaisala 1 Now it is 15.8 mag (Jan. 2, Ken-ichi Kadota). It will be 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) Feb. 28 17 12.93 -11 1.9 2.008 2.093 80 16.8 5:07 (329, 39) Mar. 7 17 23.28 -10 50.0 1.966 2.127 85 16.9 4:58 (331, 40) C/2014 W2 ( PanSTARRS ) Now it is 16.8 mag (Jan. 23, Catalina Sky Survey). It keeps 13 mag for a long time from 2015 to 2016, and will be observable in excellent condition in the Northern Hemisphere. In the Southern Hemisphere, it is observable only until mid 2015 March. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 28 3 39.94 24 1.3 4.659 4.583 79 17.0 19:17 ( 77, 60) Mar. 7 3 40.58 24 41.5 4.725 4.532 72 16.9 19:23 ( 85, 54) C/2014 R4 ( Gibbs ) It brightened up to 15.4 mag in autumn (Nov. 19, Taras Prystavski). But it was extremely diffuse. It was reported so faint as 20 mag after December. It keeps observable in excellent condition in the Southern Hemisphere. But it locates low in the Northern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 28 8 29.08 -39 7.1 1.734 2.425 123 17.0 21:57 ( 0, 16) Mar. 7 8 24.87 -38 43.3 1.810 2.481 121 17.2 21:25 ( 0, 16) 57P/du Toit-Neujmin-Delporte Now it is 19.2 mag (Feb. 21, Jean-Francois Soulier). It is expected to brighten up to 15 mag in summer, and will be observable in excellent condition. But it is fainter than this ephemeris. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 28 19 11.71 -20 11.0 2.327 1.888 52 17.3 5:07 (308, 15) Mar. 7 19 30.39 -19 29.7 2.253 1.864 54 17.1 4:58 (308, 15) C/2014 W6 ( Catalina ) Now it is 18.0 mag (Jan. 23, K. Hills). It keeps observable at 17 mag from winter to 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) Feb. 28 11 15.58 -25 47.6 2.245 3.109 144 17.2 0:48 ( 0, 29) Mar. 7 11 5.78 -27 16.2 2.226 3.107 147 17.2 0:10 ( 0, 28) C/2013 G3 ( PanSTARRS ) Now it is 17.7 mag (Jan. 20, Taras Prystavski). 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) Feb. 28 20 19.39 35 58.4 4.436 3.960 55 17.2 5:07 (247, 34) Mar. 7 20 30.60 36 59.5 4.440 3.974 56 17.2 4:58 (246, 36) C/2012 K8 ( Lemmon ) Now it is 17.5 mag (Dec. 1, Alexander Baransky). It keeps observable at 17-18 mag for a long time from 2013 to 2016. It keeps locating high in the Northern Hemisphere. It keeps locating very low in the Southern Hemipshere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 28 17 26.00 53 30.5 6.515 6.593 90 17.3 5:07 (218, 63) Mar. 7 17 24.20 54 53.8 6.489 6.602 92 17.3 4:58 (211, 65) 299P/2014 D2 ( Catalina-PanSTARRS ) Now it is 17.6 mag (Jan. 22, A. Maury, J.-F. Soulier, J.-G. Bosch, T. Noel). 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) Feb. 28 16 51.61 -28 43.7 3.086 3.140 83 17.4 5:07 (342, 24) Mar. 7 16 58.50 -28 52.6 2.990 3.140 89 17.3 4:58 (345, 24) C/2013 U2 ( Holvorcem ) Now it is 17.8 mag (Jan. 6, B. Lutkenhoner). It was observed around 17-18 mag in early 2014. It will be observable around 17-18 mag again from 2014 autumn to 2015 spring, 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) Feb. 28 10 15.37 56 33.0 4.495 5.204 131 17.4 23:43 (180, 69) Mar. 7 10 9.46 55 59.6 4.541 5.214 128 17.5 23:10 (180, 69) 65P/Gunn Now it is 17.6 mag (Jan. 21, Catalina Sky Survey). Now it is around the aphelion. In the Northern Hemisphere, it is observable at 18 mag in good condition from winter to spring. It locates somewhat low in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 28 8 38.76 29 19.1 3.734 4.575 144 17.6 22:07 ( 0, 84) Mar. 7 8 35.34 29 22.8 3.790 4.565 136 17.6 21:36 ( 0, 84) (347449) 2012 TW236 First return of a peculiar asteroid 1998 HO121. It keeps observable at 17-18 mag from 2015 to 2016. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 28 6 52.55 9 30.8 2.480 3.136 123 17.6 20:21 ( 0, 65) Mar. 7 6 53.90 10 4.5 2.544 3.122 116 17.7 19:55 ( 0, 65) 119P/Parker-Hartley Now it is 17.2 mag (Jan. 10, Toshiyuki Takahashi). It was observed at 17 mag from 2013 to early 2014. It will be observable at 17.5 mag in good condition again from autumn to winter in 2014. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 28 7 58.39 14 21.5 2.655 3.468 139 17.7 21:27 ( 0, 69) Mar. 7 7 56.88 14 32.6 2.740 3.485 132 17.8 20:58 ( 0, 70) C/2013 TW5 ( Spacewatch ) Now it is 17.0 mag (Dec. 30, Space Surveillance Telescope, Atom Site). It keeps 18 mag from 2014 to 2015. In 2015, it keeps observable in good condition from winter to spring. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 28 10 42.93 -10 51.9 5.045 5.989 160 17.8 0:15 ( 0, 44) Mar. 7 10 39.73 -10 57.1 5.049 6.001 162 17.8 23:40 ( 0, 44) C/2014 Y1 ( PanSTARRS ) It will brighten up to 14 mag in 2016 spring. Now it is 17.1 mag (Jan. 22, Mt. Lemmon Survey). In 2015, it is observable in good condition until spring in the Northern Hemisphere. In the Southern Hemisphere, it is not observable in 2015. But it will be observable in good condition at the high light in 2016. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 28 7 17.97 40 1.8 3.496 4.141 124 17.9 20:46 (180, 85) Mar. 7 7 16.13 39 38.8 3.525 4.084 117 17.8 20:17 (180, 85) 53P/Van Biesbroeck Now it is 20.0 mag (Dec. 27, Takaaki Oribe). It will brighten up to 14 mag and will be observable in good condition in 2016. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 28 13 8.39 -1 35.9 3.140 3.969 142 18.0 2:40 ( 0, 53) Mar. 7 13 6.19 -1 8.3 3.046 3.935 149 17.9 2:10 ( 0, 54) C/2014 F2 ( Tenagra ) It keeps observable at 18 mag from 2014 to 2015 in the Northern Hemispehre. It is not observable in the Southern Hemispehre. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 28 15 22.81 62 26.9 3.954 4.339 106 17.9 4:53 (180, 63) Mar. 7 15 11.61 65 4.9 3.951 4.346 106 17.9 4:15 (180, 60)