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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)
Feb. 27 23 35.02 7 17.5 2.413 1.536 21 8.2 19:16 ( 97, 3)
Mar. 5 23 34.83 6 23.4 2.424 1.486 14 8.1 19:22 (101, -5)
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Now it is 8.8 mag (Feb. 27, Maik Meyer). It was expected to brighten up to 4-5 mag from autumn to winter. But actually, it was 6 mag at best. It will be fading rapidly after this. 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)
Feb. 27 4 9.41 59 49.9 1.591 1.932 94 9.6 19:16 (156, 61)
Mar. 5 4 8.95 56 37.6 1.806 2.025 87 10.0 19:22 (145, 60)
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Now it is so bright as 9.3 mag (Feb. 27, Maik Meyer). 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)
Feb. 27 15 12.20 70 50.5 1.829 2.296 105 9.6 4:48 (180, 54)
Mar. 5 14 29.89 71 22.0 1.834 2.330 107 9.8 3:39 (180, 54)
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Now it is bright as 12.4 mag (Jan. 9, Seiichi Yoshida). It keeps 12 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)
Feb. 27 20 32.18 64 46.0 2.714 2.673 77 12.1 5:09 (211, 38)
Mar. 5 20 34.23 65 3.0 2.727 2.671 76 12.2 5:00 (211, 39)
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Now it is 13.2 mag (Feb. 12, 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)
Feb. 27 5 9.72 20 53.1 1.679 2.101 100 12.8 19:16 ( 29, 74)
Mar. 5 5 15.84 21 14.2 1.722 2.062 95 12.7 19:22 ( 48, 71)
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Now it is 13.8 mag (Feb. 27, Michael Jager). It will pass only 0.036 a.u. from the earth on Mar. 21-22. It is expected to brighten very rapidly and reach up to 11 mag in March. 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)
Feb. 27 5 46.07 -30 1.9 0.144 1.025 100 13.9 19:19 ( 0, 25)
Mar. 5 5 46.18 -35 50.5 0.105 1.007 95 13.1 19:22 ( 6, 18)
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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)
Feb. 27 15 37.45 -20 11.0 1.802 2.212 100 13.4 5:09 (359, 35)
Mar. 5 15 44.63 -20 48.4 1.731 2.220 105 13.3 4:53 ( 0, 34)
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First return of an object discovered as an asteroid 2007 VA85 in 2007. Faint tail was observed on Jan. 8 by Hidetaka Sato. It approached to the earth down to 0.5 a.u. in February. Now it is very bright as 12.5 mag (Feb. 27, Michael Jager). It will keep 14 mag for some more time, but it will be getting lower. 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)
Feb. 27 4 38.11 6 17.3 0.703 1.226 91 13.6 19:16 ( 33, 58)
Mar. 5 4 12.16 15 29.5 0.865 1.190 79 13.8 19:22 ( 64, 56)
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Now it is 11.8 mag (Jan. 8, Giuseppe Pappa). It will be unobservable soon. 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)
Feb. 27 0 25.53 -6 1.2 2.597 1.773 27 13.7 19:16 ( 79, 6)
Mar. 5 0 42.86 -4 11.7 2.665 1.813 24 14.0 19:22 ( 83, 3)
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Appearing in the morning sky, but it has not been observed yet.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 27 19 26.15 -26 19.8 6.570 5.959 48 13.9 5:09 (310, 8)
Mar. 5 19 31.03 -26 9.6 6.481 5.957 54 13.9 5:00 (312, 10)
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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)
Feb. 27 23 12.03 -7 45.6 2.952 1.979 8 13.9 19:16 ( 88,-10)
Mar. 5 23 27.61 -6 13.5 3.002 2.018 6 14.1 19:22 ( 92,-13)
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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 is appearing in the morning sky also in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 27 18 27.10 21 35.6 5.204 4.925 68 13.9 5:09 (278, 50)
Mar. 5 18 29.31 22 4.7 5.196 4.991 72 13.9 5:00 (280, 53)
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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)
Feb. 27 1 1.11 7 34.2 1.833 1.239 39 14.5 19:16 ( 85, 21)
Mar. 5 1 25.43 9 11.6 1.822 1.215 38 14.1 19:22 ( 88, 20)
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Now it is 16.2 mag (Feb. 19, P. C. Sherrod, L. P. Sherrod). 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)
Feb. 27 12 27.50 17 17.9 1.194 2.119 151 14.5 2:04 ( 0, 72)
Mar. 5 12 24.05 18 15.9 1.130 2.079 156 14.2 1:33 ( 0, 73)
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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)
Feb. 27 22 50.79 -4 15.8 5.911 4.927 5 14.8 19:16 ( 94,-13)
Mar. 5 22 58.02 -3 46.2 5.911 4.920 2 14.8 5:00 (263,-16)
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Now it is 15.2 mag (Feb. 11, Yasukazu Ikari). 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)
Feb. 27 13 43.41 -5 47.4 1.618 2.390 131 15.1 3:20 ( 0, 49)
Mar. 5 13 41.15 -6 49.3 1.545 2.381 138 15.0 2:50 ( 0, 48)
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It brightened up to 11.1 mag in 2015 autumn (Sept. 21, Seiichi Yoshida). Now it is 14.5 mag (Feb. 15, 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)
Feb. 27 12 0.21 11 4.6 1.503 2.455 159 15.0 1:37 ( 0, 66)
Mar. 5 11 52.43 11 46.4 1.531 2.507 166 15.2 1:02 ( 0, 67)
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Now it is 16.2 mag (Feb. 17, La Silla--TRAPPIST). Appearing in the morning sky. 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)
Feb. 27 18 51.56 -17 44.3 2.907 2.483 55 15.3 5:09 (310, 19)
Mar. 5 19 4.86 -17 23.5 2.828 2.472 59 15.2 5:00 (311, 20)
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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)
Feb. 27 14 16.03 -29 13.8 3.381 3.905 115 15.5 3:52 ( 0, 26)
Mar. 5 14 16.02 -29 37.4 3.317 3.929 121 15.6 3:25 ( 0, 25)
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It will approach to the sun down to 0.58 a.u. on Mar. 9, and brighten up to 15 mag. But it is 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)
Feb. 27 23 11.53 -5 37.0 1.578 0.620 9 16.3 19:16 ( 90, -9)
Mar. 5 23 54.41 -2 35.6 1.504 0.584 13 15.5 19:22 ( 91, -5)
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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)
Feb. 27 2 50.37 72 19.8 5.193 5.296 90 15.8 19:16 (163, 47)
Mar. 5 2 56.60 72 13.6 5.272 5.307 86 15.9 19:22 (161, 45)
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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)
Feb. 27 6 49.90 63 32.9 5.044 5.495 112 15.9 20:24 (180, 61)
Mar. 5 6 45.86 63 9.1 5.064 5.434 106 15.9 19:52 (180, 62)
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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)
Feb. 27 11 57.42 13 7.2 2.948 3.893 159 16.2 1:34 ( 0, 68)
Mar. 5 11 53.22 13 38.5 2.908 3.877 165 16.2 1:02 ( 0, 69)
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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)
Feb. 27 8 19.02 17 15.8 1.776 2.651 145 16.3 21:52 ( 0, 72)
Mar. 5 8 12.94 20 46.4 1.821 2.628 136 16.3 21:18 ( 0, 76)
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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)
Feb. 27 1 56.33 4 37.1 2.638 2.163 51 16.3 19:16 ( 73, 30)
Mar. 5 2 9.06 5 54.1 2.678 2.142 47 16.3 19:22 ( 78, 27)
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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)
Feb. 27 10 49.55 -5 52.9 10.055 11.015 165 16.3 0:26 ( 0, 49)
Mar. 5 10 46.20 -5 34.4 10.082 11.052 167 16.3 23:51 ( 0, 49)
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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)
Feb. 27 14 20.70 26 53.5 2.307 2.979 124 16.3 3:57 ( 0, 82)
Mar. 5 14 17.04 27 53.0 2.299 3.025 129 16.4 3:26 ( 0, 83)
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Now it is 18.6 mag (Feb. 13, M. M. Knight, M. S. P. Kelley, S. Protopapa, M. Micheli). 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 in March. 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)
Feb. 27 5 46.28 -35 25.6 0.195 1.038 98 17.1 19:20 ( 0, 20)
Mar. 5 5 54.03 -33 44.3 0.142 1.019 97 16.3 19:22 ( 5, 21)
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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)
Feb. 27 7 58.89 0 59.1 9.274 10.051 139 16.4 21:32 ( 0, 56)
Mar. 5 7 57.99 1 18.4 9.330 10.039 133 16.4 21:04 ( 0, 56)
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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)
Feb. 27 3 38.79 -28 33.3 2.725 2.615 73 16.6 19:16 ( 29, 20)
Mar. 5 3 39.95 -28 40.8 2.766 2.579 68 16.5 19:22 ( 35, 16)
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It kept brightening even after the perihelion passage, and brightened up to 13.0 mag (Dec. 21, Juan Jose Gonzalez). It keeps observable in excellent condition for a while. But it will be fading after this. 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)
Feb. 27 6 2.58 26 49.4 1.177 1.809 112 16.6 19:37 ( 0, 82)
Mar. 5 6 14.87 27 43.6 1.275 1.849 108 16.9 19:22 ( 1, 83)
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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)
Feb. 27 3 47.39 -53 30.5 3.541 3.432 75 16.6 19:16 ( 17, -2)
Mar. 5 3 40.53 -51 25.3 3.586 3.420 72 16.6 19:22 ( 23, -3)
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Now it is 17.2 mag (Feb. 6, Catalina Sky Survey). It will brighten up to 13 mag in 2016 summer. But it is not observable around the highlight. In the Southern Hemisphere, it will be unobservable soon. In the Northern Hemisphere, it is observable until April when it brightens up to 16 mag.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 27 2 24.66 12 10.7 3.165 2.809 60 17.0 19:16 ( 76, 40)
Mar. 5 2 32.62 12 37.7 3.179 2.738 55 16.9 19:22 ( 81, 35)
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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)
Feb. 27 11 33.89 31 5.8 1.722 2.648 154 16.9 1:11 ( 0, 86)
Mar. 5 11 18.82 29 43.4 1.757 2.694 156 17.0 0:29 ( 0, 85)
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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)
Feb. 27 5 38.30 12 13.8 3.116 3.530 106 16.9 19:16 ( 3, 67)
Mar. 5 5 41.56 11 53.6 3.228 3.547 100 17.0 19:22 ( 21, 66)
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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)
Feb. 27 8 13.88 25 30.1 1.163 2.037 142 17.0 21:47 ( 0, 80)
Mar. 5 8 15.47 25 38.8 1.228 2.056 135 17.2 21:21 ( 0, 81)
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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)
Feb. 27 15 9.58 2 17.6 1.995 2.538 111 17.1 4:45 ( 0, 57)
Mar. 5 15 12.65 2 28.6 1.929 2.547 117 17.0 4:21 ( 0, 57)
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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)
Feb. 27 15 37.59 -12 18.8 1.570 2.029 102 17.3 5:09 (358, 43)
Mar. 5 15 44.08 -14 0.3 1.488 2.022 107 17.1 4:52 ( 0, 41)
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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)
Feb. 27 6 33.93 -16 10.2 3.411 3.932 114 17.1 20:07 ( 0, 39)
Mar. 5 6 34.18 -14 12.1 3.455 3.911 110 17.1 19:40 ( 0, 41)
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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)
Feb. 27 6 11.76 44 52.3 1.850 2.413 112 17.2 19:45 (180, 80)
Mar. 5 6 0.98 46 49.2 1.938 2.384 104 17.2 19:22 (167, 78)
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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)
Feb. 27 7 47.51 28 10.3 1.547 2.359 135 17.2 21:21 ( 0, 83)
Mar. 5 7 47.94 28 54.2 1.614 2.363 128 17.3 20:54 ( 0, 84)
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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)
Feb. 27 18 13.27 -31 54.1 9.425 9.052 65 17.2 5:09 (326, 13)
Mar. 5 18 13.81 -32 13.9 9.344 9.085 71 17.2 5:00 (329, 15)
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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)
Feb. 27 17 18.27 67 44.5 7.210 7.349 94 17.3 5:09 (197, 54)
Mar. 5 17 14.98 68 49.8 7.196 7.343 94 17.3 5:00 (193, 54)
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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)
Feb. 27 8 46.75 32 39.1 0.667 1.584 145 17.3 22:20 ( 0, 87)
Mar. 5 8 46.85 30 50.4 0.685 1.577 139 17.3 21:53 ( 0, 86)
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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)
Feb. 27 5 44.99 36 58.8 1.098 1.698 108 17.4 19:20 (180, 88)
Mar. 5 5 59.86 35 42.2 1.145 1.698 104 17.4 19:22 (102, 87)
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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)
Feb. 27 16 0.57 -26 11.7 1.992 2.290 94 17.4 5:09 (353, 28)
Mar. 5 16 9.78 -27 37.5 1.935 2.307 98 17.4 5:00 (356, 27)
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First return of a periodic comet discovered in 2003. It brightened up to 15.1 mag in December (Dec. 17, Space Surveillance Telescope, Atom Site). Now it is fading. It has already faded down to 17.7 mag (Feb. 18, D. Buczynski). It will be fainter than 18 mag in March. 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)
Feb. 27 5 33.12 37 10.5 1.354 1.889 106 17.5 19:16 (143, 87)
Mar. 5 5 47.00 37 56.7 1.452 1.925 102 17.9 19:22 (120, 84)
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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)
Feb. 27 11 45.33 -5 38.9 4.552 5.481 157 17.7 1:22 ( 0, 49)
Mar. 5 11 41.50 -5 17.1 4.451 5.415 165 17.6 0:51 ( 0, 50)
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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)
Feb. 27 14 56.50 -4 57.0 0.440 1.236 113 19.1 4:31 ( 0, 50)
Mar. 5 15 55.37 -1 22.0 0.273 1.102 106 17.6 5:00 (359, 53)
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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)
Feb. 27 12 59.88 2 19.1 2.206 3.063 143 17.8 2:36 ( 0, 57)
Mar. 5 12 56.59 2 44.8 2.121 3.030 151 17.6 2:06 ( 0, 58)
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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)
Feb. 27 9 21.88 -22 57.0 5.301 6.124 143 17.7 22:54 ( 0, 32)
Mar. 5 9 14.04 -22 13.2 5.346 6.149 141 17.7 22:19 ( 0, 33)
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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)
Feb. 27 13 32.37 -26 23.7 8.554 9.156 124 17.8 3:09 ( 0, 29)
Mar. 5 13 31.36 -26 23.0 8.469 9.158 131 17.8 2:40 ( 0, 29)
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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)
Feb. 27 11 32.29 -5 42.7 3.877 4.820 160 17.8 1:09 ( 0, 49)
Mar. 5 11 29.09 -5 23.7 3.868 4.839 166 17.8 0:38 ( 0, 49)
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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)
Feb. 27 17 24.81 16 37.2 6.626 6.548 81 17.8 5:09 (299, 59)
Mar. 5 17 26.72 17 48.0 6.522 6.534 86 17.8 5:00 (303, 63)
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Now it is 17.1 mag (Feb. 11, Y. Sugiyama). It is observable in good 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. 27 10 17.40 53 12.4 1.800 2.599 135 17.9 23:49 (180, 72)
Mar. 5 10 6.14 52 24.1 1.875 2.645 132 18.0 23:11 (180, 73)
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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)
Feb. 27 14 1.93 -7 36.2 2.806 3.486 126 18.0 3:38 ( 0, 47)
Mar. 5 14 1.69 -7 7.7 2.753 3.511 133 17.9 3:10 ( 0, 48)
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Now it is 18.2 mag (Jan. 17, K. Sarneczky, P. Szekely, T. Szalai). It keeps 17-18 mag for a long time since 2013. In the Northern Hemisphere, it is observable at 18 mag in good condition also in this winter. It is not observable in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 27 13 55.47 62 12.4 6.976 7.458 115 17.9 3:32 (180, 63)
Mar. 5 13 45.96 62 56.2 6.994 7.481 115 18.0 2:55 (180, 62)
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