Weekly Information about Bright Comets (2014 Mar. 8: North)

Japanese version Home page	Updated on March 9, 2014
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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/2012 X1 ( LINEAR ) It brightened rapidly in outburst in mid October. Now it is bright as 7.8 mag (Feb. 22, Maik Meyer). It keeps 8-9 mag for a long time until early summer, and it keeps observable in the morning sky in the Northern Hemisphere. In the Southern Hemisphere, it is getting higher and it will be observable in excellent condition after spring. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 8 19 37.04 -0 44.5 1.980 1.611 53 8.2 4:57 (293, 28) Mar. 15 19 54.31 -1 51.6 1.956 1.625 55 8.2 4:47 (294, 27) C/2013 R1 ( Lovejoy ) It passed only 0.4 A.U. from the earth, and 0.8 A.U. from the sun in November and December, and brightened up to 4.7 mag (Nov. 28, Juan Jose Gonzalez). Now it is 8.0 mag (Feb. 22, Maik Meyer). In the Northern Hemisphere, it keeps observable in excellent condition for a long time until 2014 autumn when the comet will fade out. It is getting higher in the morning sky also in the Southern Hemisphere, and it keeps observable in good condition after this. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 8 18 33.07 -1 4.9 1.588 1.556 69 9.2 4:57 (306, 39) Mar. 15 18 33.48 -2 40.4 1.577 1.651 76 9.5 4:47 (312, 41) C/2012 K1 ( PanSTARRS ) Now it is bright as 11.7 mag (Mar. 1, Marco Goiato). The brightening is somewhat slow, but it is expected to brighten up to 6-7 mag in 2014 autumn. It keeps observable in good condition for a long time in the Northern Hemisphere. It keeps locating low in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 8 16 32.11 22 47.9 2.369 2.742 101 11.1 4:57 (327, 76) Mar. 15 16 26.61 25 38.6 2.192 2.661 107 10.8 4:47 (346, 80) 290P/2013 N1 ( Jager ) First return of a new periodic comet discovered in 1998. It brightened up to 10 mag at the discovery. Now it is 11.8 mag (Feb. 22, Carlos Labordena). A bit fainter than originally expected. But in the Northern Hemisphere, it keeps observable in excellent condition from autumn to spring. It locates somewhat low in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 8 6 29.36 23 44.1 1.611 2.157 109 12.4 19:26 ( 0, 79) Mar. 15 6 36.93 22 26.6 1.682 2.156 104 12.5 19:31 ( 25, 76) 4P/Faye It reaches up to 12 mag in 2014 spring. But the condition in this apparition is bad. It locates low around the brightest days. Now it is not observable. It will appear in the morning sky at 13 mag in late July. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 8 23 40.70 0 2.6 2.822 1.846 8 13.3 19:24 ( 97, -9) Mar. 15 23 57.88 1 32.0 2.803 1.818 6 13.2 19:31 (101,-12) 134P/Kowal-Vavrova Already bright as 14.4 mag (Jan. 3, Mt. Lemmon Survey). It will brighten up to 13 mag and to be observable in excellent condition from spring to summer. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 8 14 9.60 -13 28.2 1.870 2.643 132 13.4 3:08 ( 0, 41) Mar. 15 14 10.69 -13 20.5 1.797 2.630 139 13.3 2:42 ( 0, 42) 169P/NEAT Now it is bright as 14 mag (Mar. 1, Michael Mattiazzo). It will be fading rapidly in the evening sky after this. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 8 1 43.99 3 9.9 1.147 0.723 38 13.3 19:24 ( 81, 18) Mar. 15 2 30.15 6 31.9 1.123 0.798 43 14.1 19:31 ( 82, 22) 17P/Holmes It brightened up to 2 mag by unusual major outburst in 2007. It is coming back now. It will be 14 mag at best by normal prediction. But actually, it is already very bright as 13.5 mag (Nov. 25, Hidetaka Sato). Now it is not observable. It will appear in the morning sky in May. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 8 22 55.77 -2 53.4 3.050 2.062 4 13.4 4:57 (264,-13) Mar. 15 23 9.88 -0 46.2 3.041 2.059 7 13.4 4:47 (263,-11) C/2013 A1 ( Siding Spring ) Now it is 14.1 mag and visible visually (Feb. 24, Chris Wyatt). It is expected to brighten up to 7.5 mag and to be observable in excellent condition from summer to autumn in 2014 in the Southern Hemisphere. It keeps observable for a long time in the Southern Hemisphere, although it becomes low temporarily in May. It keeps unobservable for a while in the Northern Hemisphere. It will pass extremely close to Mars in 2014 October. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 8 2 36.99 -29 43.4 3.795 3.311 54 13.8 19:24 ( 48, 5) Mar. 15 2 36.91 -28 42.5 3.789 3.240 49 13.7 19:31 ( 54, 1) 29P/Schwassmann-Wachmann 1 New outburst occured in early March. Now it is bright as 13.8 mag (Mar. 4, Jean-Francois Soulier). Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 8 15 58.37 -30 21.3 5.855 6.159 103 13.8 4:57 ( 0, 25) Mar. 15 15 58.85 -30 32.7 5.746 6.157 109 13.7 4:30 ( 0, 24) C/2006 S3 ( LONEOS ) It brightened up to 11-12 mag in 2012. Now it is 14.1 mag (Jan. 26, Taras Prystavski). It will be observable in good condition at 14 mag until 2014 early summer. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 8 12 55.90 -13 13.4 6.354 7.219 148 13.8 1:55 ( 0, 42) Mar. 15 12 50.12 -12 48.4 6.330 7.253 156 13.8 1:22 ( 0, 42) C/2013 V1 ( Boattini ) Now it is 13.9 mag and visible visually (Feb. 1, Chris Wyatt). It keeps 14 mag for a long time until 2014 summer. It keeps observable in good condition in the Northern Hemisphere. It keeps unobservable after this in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 8 2 48.27 33 30.4 1.957 1.762 63 13.9 19:24 (105, 45) Mar. 15 2 54.22 36 28.5 2.006 1.733 59 13.9 19:31 (111, 41) C/2010 S1 ( LINEAR ) Now it is 12.9 mag (Nov. 27, Sandor Szabo). It keeps bright at 13-14 mag for a long time until 2014. It will be getting higher gradually, and it keeps observable for a long time after this. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 8 19 55.74 4 24.7 6.839 6.248 50 14.1 4:57 (285, 27) Mar. 15 19 56.94 4 23.5 6.770 6.265 55 14.1 4:47 (288, 31) C/2011 J2 ( LINEAR ) Now it is bright as 13.2 mag (Jan. 28, Taras Prystavski). It keeps 13-14 mag and observable in good condition in the Northern Hemisphere for a long time from 2013 to 2014. In the Southern Hemisphere, it is not observable until 2014 autumn. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 8 0 13.11 56 27.0 3.850 3.508 62 14.2 19:24 (142, 27) Mar. 15 0 21.21 55 19.6 3.940 3.521 58 14.3 19:31 (143, 23) 117P/Helin-Roman-Alu 1 Although it had been unobservable for a while, it is appearing in the morning sky. Now it is 15.2 mag (Feb. 6, Taras Prystavski). It keeps bright as 13-14 mag for a long time from 2013 to 2014. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 8 19 41.42 -26 10.4 3.524 3.058 54 14.5 4:57 (311, 9) Mar. 15 19 51.86 -26 0.6 3.444 3.057 59 14.4 4:47 (312, 11) 154P/Brewington It brightened very rapidly, and brightened up to 10.5 mag from autumn to winter. Now it is fading, but it is bright as 14.3 mag still now (Feb. 11, Yasukazu Ikari). It is visible visually at 12.2 mag still now (Feb. 22, Carlos Labordena). In the Northern Hemisphere, it keeps observable in excellent condition until May when it becomes fainter than 18 mag. It will not be observable after this in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 8 2 54.43 33 23.2 2.046 1.858 64 15.0 19:24 (104, 47) Mar. 15 3 15.83 34 11.5 2.134 1.896 62 15.5 19:31 (106, 44) (596) Scheila Big asteroid discovered in 1906. It suddenly showed the cometary activity on Dec. 11, 2010, probably due to an impact of a small object. It has already turned to be stellar. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 8 1 25.85 0 32.8 4.054 3.275 33 15.1 19:24 ( 82, 12) Mar. 15 1 34.05 1 39.0 4.114 3.282 29 15.1 19:31 ( 87, 8) C/2014 C2 ( STEREO ) New bright comet discovered in the STEREO spacecraft images. It brightened up to 3.8 mag on Jan. 31 thanks to the forward scattering. It was observed at 15.2 mag on the ground (Feb. 20, Hidetaka Sato). It approached to the Sun down to 0.5 a.u. on Feb. 18. Because the absolute magnitude is faint as 18 mag, it may be disintegrated. It is appearing in the morning sky in the Northern Hemispehre. In the Southern Hemispehre, it will not observable after this. Colin Drescher reported the comet was visible on SWAN images for several days in late December at about 11 mag. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 8 22 15.57 33 48.6 0.651 0.660 41 15.3 4:57 (240, 16) Mar. 15 0 24.24 47 2.8 0.672 0.767 50 16.0 19:31 (134, 21) C/2012 F3 ( PanSTARRS ) It is expected to brighten up to 13 mag and to be observable in good condition in 2015. Now it is 15.9 mag (Jan. 26, Taras Prystavski). In 2014, it will be observable at 15 mag in good condition from winter to summer. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 8 14 1.62 -3 38.7 4.165 4.937 136 15.5 3:00 ( 0, 51) Mar. 15 14 0.73 -3 15.0 4.055 4.895 144 15.4 2:32 ( 0, 52) C/2012 V2 ( LINEAR ) It became much brighter than expected, and reached up to 8.5 mag (Aug. 15, Alexandre Amorim). Now it is fading rapidly, but it is bright as 13.8 mag still now (Jan. 28, Taras Prystavski). In the Southern Hemisphere, it will keep observable in good condition for a long time until 2014 summer when the comet fades out. It will never be observable again in the Northern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 8 17 16.16 -70 11.2 2.941 3.019 84 15.5 4:57 (353,-16) Mar. 15 17 15.98 -70 39.8 2.931 3.090 89 15.7 4:47 (355,-16) C/2012 K6 ( McNaught ) It brightened up to 14.0 mag from spring to summer in 2013 (June 11, Sandor Szabo). Now it is 14.9 mag, much brighter than origianlly predicted (Jan. 27, Taras Prystavski). In the Northern Hemisphere, it will be observable at 15-16 mag in excellent condition until spring. It locates somewhat low in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 8 13 10.63 24 59.3 3.429 4.283 145 15.6 2:10 ( 0, 80) Mar. 15 13 0.89 27 8.2 3.444 4.322 148 15.6 1:33 ( 0, 82) 52P/Harrington-Abell Now it is 14.7 mag (Jan. 19, Taras Prystavski). It will be fading gradually after this, and it will be fainter than 18 mag in June. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 8 5 27.71 31 45.6 1.372 1.773 95 15.7 19:24 ( 79, 77) Mar. 15 5 43.81 30 55.8 1.430 1.775 92 15.8 19:31 ( 81, 73) P/2012 B1 ( PanSTARRS ) Now it is 15.7 mag (Jan. 27, Taras Prystavski), brighter than origianlly predicted. It will be observable at 14-16 mag for a long time from 2013 to 2014. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 8 16 17.57 -23 44.2 3.730 4.031 100 15.9 4:57 (355, 31) Mar. 15 16 19.91 -24 2.1 3.641 4.043 106 15.9 4:47 (359, 31) C/2013 Y2 ( PanSTARRS ) Now it is 15.0 mag (Feb. 24, Taras Prystavski). Somewhat brighter than this ephemeris, so it can be brightening rapidly. It will be observable in excellent condition from spring to summer in the Southern Hemisphere. It locates somewhat low in the Northern Hemispehre. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 8 7 50.46 -24 45.2 1.563 2.258 122 16.0 20:46 ( 0, 30) Mar. 15 7 50.59 -24 6.0 1.558 2.215 118 15.9 20:19 ( 0, 31) C/2014 C3 ( NEOWISE ) Now it is 16.5 mag (Feb. 19, Hidetaka Sato). It is observable at 16 mag in excellent condition at opposition in March. But it will fade out very rapidly after that. It will be fainter than 18 mag in May. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 8 14 27.46 -4 16.4 1.132 1.930 130 16.1 3:27 ( 0, 50) Mar. 15 13 55.03 2 39.0 1.058 1.962 145 16.0 2:28 ( 0, 57) 124P/Mrkos Now it is 16.5 mag (Feb. 20, A. Klotz, F. Kugel, C. Rinner). It will approach to the earth down to 0.68 a.u., brighten up to 16 mag, and will be observable in excellent condition in spring. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 8 11 49.02 21 24.1 0.703 1.674 161 16.2 0:49 ( 0, 76) Mar. 15 11 33.28 17 59.6 0.684 1.663 164 16.1 0:06 ( 0, 73) C/2009 F4 ( McNaught ) Now it is 15.1 mag (Jan. 20, Taras Prystavski). It will be fading after this, but it keeps brighter than 18 mag until 2015 spring. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 8 3 7.71 -13 33.9 8.330 7.857 58 16.3 19:24 ( 54, 22) Mar. 15 3 9.40 -12 45.5 8.446 7.891 53 16.3 19:31 ( 60, 17) 284P/2013 J1 ( McNaught ) First return of a new periodic comet which brightened up to 13 mag in 2007. It is expected to brighten up to 13 mag again and observable in good condition from summer to autumn in 2014. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 8 20 33.63 -13 40.4 3.267 2.589 40 16.5 4:57 (294, 9) Mar. 15 20 46.19 -13 3.1 3.190 2.568 43 16.4 4:47 (294, 10) C/2013 V2 ( Borisov ) Now it is 15.8 mag (Jan. 18, Taras Prystavski). It keeps 16 mag for a long time until 2015 summer. It keeps observable in good condition in the Northern Hemisphere. It becomes observable only after 2015 in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 8 4 47.56 52 35.5 3.912 4.040 90 16.5 19:24 (143, 65) Mar. 15 4 53.51 52 28.3 3.971 4.009 85 16.5 19:31 (138, 61) P/2013 TL117 ( Lemmon ) Now it is 17.0 mag (Jan. 24, A. Klotz, F. Kugel). It keeps close to the earth around 0.7 a.u. until spring. It will brighten up to 16.5 mag in February and March, and will be observable in excellent condition in the Northern Hemisphere. It locates very low in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 8 4 43.31 35 24.0 0.622 1.143 86 16.5 19:24 ( 99, 69) Mar. 15 5 26.64 34 49.2 0.629 1.166 88 16.7 19:31 ( 96, 71) C/2013 V5 ( Oukaimeden ) Now it is 16.6 mag (Feb. 20, Katsumi Yoshimoto). It is expected to brighten up to 6 mag in 2014 autumn. At this time, it keeps observable while brightening gradually until April when it becomes 16 mag. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 8 4 58.41 19 58.8 3.172 3.297 88 16.7 19:24 ( 59, 65) Mar. 15 4 54.57 19 41.1 3.223 3.212 80 16.6 19:31 ( 70, 58) 209P/LINEAR Now it is 17.6 mag (Jan. 19, Taras Prystavski). It will approach to the earth down to 0.06 a.u. from May to June, and it is expected to brighten up to 11 mag. In the Northern Hemisphere, it keeps observable in excellent condition until the highlight in late May while the comet will be brightening rapidly. In the Southern Hemisphere, it is not observable now. But it will be observable in mid May. Then it keeps observable in excellent condition at the highlight and after that while the comet will be fading. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 8 7 8.36 73 11.0 0.597 1.268 102 17.1 20:04 (180, 52) Mar. 15 6 55.70 73 16.9 0.571 1.211 97 16.9 19:31 (179, 52) C/2011 KP36 ( Spacewatch ) Now it is 17.8 mag (Oct. 13, Mt. Lemmon Survey). Distant object, but it keeps observable at 14 mag for a long time from 2015 to 2016. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 8 19 5.91 -5 14.8 7.856 7.432 61 17.2 4:57 (303, 30) Mar. 15 19 9.01 -4 58.2 7.726 7.399 67 17.1 4:47 (306, 33) C/2012 J1 ( Catalina ) It brightened up to 12-13 mag from autumn to winter in 2012. Now it is fading. But actually, it is 15.7 mag, brighter than this ephemeris (Jan. 26, Taras Prystavski). It will be observable until April in the Northern Hemisphere, or May in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 8 5 35.51 -1 10.5 5.046 5.236 95 17.2 19:24 ( 22, 52) Mar. 15 5 37.69 -0 54.9 5.193 5.283 89 17.3 19:31 ( 33, 49) C/2012 F6 ( Lemmon ) It approached to the sun down to 0.73 A.U. on 2013 Mar. 24, and brightened up to 4.7 mag (Mar. 11, Michael Mattiazzo). Now it is fading. It has already faded down to 16.5 mag (Feb. 2, A. Diepvens). In the Northern Hemisphere, it keeps observable in good condition while fading gradually. In the Southern Hemisphere, it will never be observable again. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 8 21 5.47 56 28.4 5.121 4.817 66 17.3 4:57 (221, 36) Mar. 15 21 11.77 57 44.0 5.193 4.888 66 17.4 4:47 (220, 37) C/2013 G7 ( McNaught ) It keeps 17-18 mag for a long time from 2013 to 2014. It is observable in excellent condition 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) Mar. 8 14 4.92 -55 19.1 4.246 4.678 109 17.3 3:04 ( 0, 0) Mar. 15 13 51.99 -56 37.4 4.168 4.678 115 17.3 2:24 ( 0, -2) C/2012 K8 ( Lemmon ) Now it is 17.6 mag (Jan. 27, K. Sarneczky). It keeps observable at 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) Mar. 8 19 15.57 32 25.9 6.873 6.558 67 17.4 4:57 (259, 49) Mar. 15 19 16.40 33 39.6 6.802 6.550 71 17.3 4:47 (259, 53) C/2011 L4 ( PanSTARRS ) It passed the perihelion on 2013 Mar. 10, and brightened up to 0-1 mag. Now it is fading. It has already faded down to 17.1 mag (Feb. 12, A. Diepvens). It will keep 16-17 mag until spring. It is not observable in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 8 17 22.63 32 6.4 5.208 5.312 90 17.5 4:57 (274, 72) Mar. 15 17 21.93 33 1.5 5.209 5.383 94 17.5 4:47 (274, 76) C/2013 V3 ( Nevski ) It brightened very rapidly in mid November, from 15 mag to 9 mag only within a week. Now it is fading very rapidly. It has already faded down to 18.8 mag (Feb. 20, Katsumi Yoshimoto). It is observable in excellent condition in the Northern Hemisphere. It keeps locating extremely low in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 8 10 54.20 55 3.6 1.408 2.181 129 17.6 23:49 (180, 70) Mar. 15 10 49.01 54 41.8 1.506 2.246 126 18.1 23:17 (180, 70) 280P/2013 C1 ( Larsen ) It was observed at 17.5 mag in early 2013. It will be observable at 17.5 mag again from spring to summer in 2014. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 8 18 41.61 -14 32.5 2.926 2.702 67 17.6 4:57 (315, 27) Mar. 15 18 51.41 -14 19.2 2.854 2.713 71 17.6 4:47 (316, 28) C/2013 G9 ( Tenagra ) Now it is 17.4 mag (Jan. 31, iTelescope Observatory, Siding Spring). 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) Mar. 8 15 22.10 -13 13.7 5.321 5.817 115 17.8 4:21 ( 0, 42) Mar. 15 15 16.94 -13 12.2 5.187 5.797 123 17.7 3:48 ( 0, 42) C/2014 A4 ( SONEAR ) Now it is 17.4 mag (Jan. 15, A. Hidas). It is expected to brighten up to 14 mag from autumn to winter in 2015. The condition is excellent in the Southern Hemisphere, and it keeps observable for a long time after this while the comet will be brightening. In the Northern Hemisphere, it will be unobservable in late March. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 8 5 7.46 -31 37.8 6.072 6.088 86 17.8 19:24 ( 18, 21) Mar. 15 5 5.27 -30 25.4 6.113 6.050 81 17.7 19:31 ( 27, 19) C/2013 C2 ( Tenagra ) It keeps 18 mag for a very long time from 2013 to 2018. 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) Mar. 8 11 6.61 -19 8.5 8.434 9.348 155 17.8 0:06 ( 0, 36) Mar. 15 11 4.67 -18 55.6 8.418 9.343 157 17.8 23:32 ( 0, 36) 294P/2013 X2 ( LINEAR ) Now it is 18.3 mag (Jan. 25, iTelescope Observatory, Siding Spring). It keeps 18 mag from spring to summer. It is observable in good condition 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) Mar. 8 15 6.13 -52 40.4 0.632 1.301 104 17.9 4:04 ( 0, 2) Mar. 15 15 31.03 -56 25.2 0.630 1.307 104 17.9 4:02 ( 0, -1) C/2013 G3 ( PanSTARRS ) It keeps 17.5 mag for a long time from 2014 to 2015. It is observable in excellent condition in the Northern Hemisphere. It is observable only until 2014 summer in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 8 16 14.43 13 3.2 4.061 4.428 105 18.0 4:57 (350, 68) Mar. 15 16 16.42 14 46.8 3.952 4.399 110 17.9 4:47 ( 0, 70) 297P/2014 D1 ( Beshore ) Now it is 19.9 mag (Feb. 27, D. T. Durig, et al.). First return of a new periodic comet which brightened up to 13 mag in outburst in 2008. It will be observable in good condition from spring to summer. However, it will be only 19-20 mag at best in this apparition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 8 12 44.61 12 46.1 1.644 2.583 156 19.8 1:44 ( 0, 68) Mar. 15 12 40.77 13 35.3 1.605 2.566 160 19.7 1:12 ( 0, 68)