Weekly Information about Bright Comets (2017 Mar. 4: South)

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Updated on March 5, 2017
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Best time and the azimuth, altitude (A,h) are at lat. 35 deg in the Southern Hemisphere.
Azimuth indicates 0 for south, 90 for west, 180 for north, 270 for east.

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* 2P/Encke

It brightened up to 7.9 mag in mid February (Feb. 21, Osamu Miyazaki). Now it is not observable. In the Southern Hemisphere, it will appear in the morning sky in late March at 8 mag, then it stays observable while the comet will be fading. In the Northern Hemisphere, it stays unobservable until May when it becomes fainter than 14 mag.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Mar.  4   0  3.19    3 45.2   0.751   0.374    19    6.7  20:00 ( 86,-12)  
Mar. 11  23 32.89   -4 22.3   0.658   0.337     2    6.1  19:49 ( 72,-16)  

* 41P/Tuttle-Giacobini-Kresak

Now it is 9.5 mag (Mar. 1, Gabor Santa). Brightening rapidly. It will approach to the earth down to 0.14 a.u. from March to April. It is expected to brighten up to 5-6 mag. It may brighten furthermore in outburst. It is observable in excellent condition in the Northern Hemisphere. In the Southern Hemisphere, it will not be observable for about one month from late March to late April.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Mar.  4   9 48.68   31 15.0   0.205   1.174   150    8.9  23:00 (180, 23)  
Mar. 11  10  5.17   39 38.6   0.178   1.135   139    7.8  22:50 (180, 15)  

* C/2015 V2 ( Johnson )

Now it is 10.2 mag (Feb. 27, Piotr Guzik). It is expected to brighten up to 6-7 mag from April to July. Recently it is fainter than predicted. In the Northern Hemisphere, it stays observable in good condition until the highlight while the comet will be brightening. In the Southern Hemisphere, it stays extremely low for a while.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Mar.  4  16 19.98   46 17.4   1.668   2.102   101    9.0   4:22 (192,  7)  
Mar. 11  16 26.14   46 43.3   1.584   2.047   102    8.8   4:29 (187,  8)  

* C/2015 ER61 ( PanSTARRS )

Now it is 10.7 mag (Mar. 3, Seiichi Yoshida). It is expected to brighten up to 7 mag from April to May. But recently it is fainter than predicted. It locates somewhat low at the high light.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Mar.  4  18 17.82  -23 17.2   1.535   1.504    69    9.2   4:22 (267, 48)  
Mar. 11  18 48.37  -22 22.4   1.439   1.429    69    8.8   4:29 (265, 48)  

* 45P/Honda-Mrkos-Pajdusakova

It approached to the earth down to 0.08 a.u. in mid February, and brightened up to 6.5 mag (Feb. 10, Danil Sidorko). Now it is fading rapidly. It has already faded down to 9.9 mag (Mar. 3, Osamu Miyazaki).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Mar.  4  11  2.86   25 33.6   0.293   1.272   160   10.9   0:18 (180, 29)  
Mar. 11  10 46.08   23 29.3   0.395   1.368   158   12.0  23:28 (180, 32)  

* 73P/Schwassmann-Wachmann 3

Bright new fragment BT was discovered on Feb. 10. Now the fragment BT is very bright as 11.9 mag (Feb. 23, Chris Wyatt). The primary component is 13.4 mag (Jan. 28, Piotr Guzik). It will be unobservable soon in the Northern Hemisphere. In the Southern Hemisphere, it stays observable for a long time after this.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Mar.  4  19 59.68  -20 56.4   1.385   0.990    45   11.9   4:22 (278, 26)  
Mar. 11  20 36.10  -20 13.8   1.401   0.976    44   11.9   4:29 (278, 25)  

* C/2016 VZ18 ( PanSTARRS )

Brightening very rapidly. Now it is bright as 12.2 mag (Mar. 1, Gabor Santa). Small comet, but it approaches to the sun down to 0.9 a.u., and to the earth down to 0.5 a.u., and it will brighten up to 12.5 mag in March. It is observable in excellent condition in the Northern Hemisphere. In the Southern Hemisphere, it stays observable only until mid February. Juan Jose Gonzalez reported it is very bright as 10.7 mag on Feb. 24.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Mar.  4   2 30.23   33 55.1   0.615   0.912    64   12.8  20:00 (132, -2)  
Mar. 11   2 44.82   42 41.5   0.581   0.913    64   12.6  19:49 (138, -8)  

* 103P/Hartley 2

It has not been observed yet in this apparition. The condition of this apparition is worst. It will brighten up to 10 mag in spring, but not observable at all.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Mar.  4  23  7.83    0 32.9   2.223   1.246     7   13.3  20:00 ( 76,-21)  
Mar. 11  23 32.65    2 28.3   2.182   1.201     6   12.9  19:49 ( 79,-20)  

* C/2017 E1 ( Borisov )

New bright comet. Now it is 12.2 mag visually (Mar. 3, Seiichi Yoshida), or 13.8 mag by CCD (Mar. 1, Hidetaka Sato). It stays 13 mag until May. In the Southern Hemisphere, it stays observable for a long time, but it stays low. It will not be observable in early April in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Mar.  4  19 21.11  -10 19.5   1.361   1.116    53   13.6   4:22 (263, 28)  
Mar. 11  19 59.68   -9 32.0   1.332   1.049    51   13.3   4:29 (263, 27)  

* C/2016 U1 ( NEOWISE )

It brightened rapidly up to 6.8 mag (Jan. 6, Katsumi Yoshimoto). It approached to the sun down to 0.3 a.u. on Jan. 14. Michael Mattiazzo reported that the comet was visible in the SWAN images from Jan. 19 to Jan. 29 while it faded from 5 mag to 7 mag. It is not observable after this in the Northern Hemisphere. In the Southern Hemisphere, it is observable in the extremely low sky in the evening.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Mar.  4  23 49.98  -28 44.6   2.054   1.232    25   13.5  20:00 ( 59,  6)  
Mar. 11   0 12.95  -27  0.8   2.184   1.362    25   14.0  19:49 ( 61,  6)  

* 29P/Schwassmann-Wachmann 1

Appearing in the morning sky.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Mar.  4  21  0.65  -17 44.2   6.690   5.861    30   13.9   4:22 (284, 12)  
Mar. 11  21  5.81  -17 18.2   6.627   5.859    36   13.9   4:29 (279, 17)  

* 71P/Clark

Now it is 16.1 mag (Feb. 23, Thomas Lehmann). It will brighten up to 10 mag in summer, and 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.  4  15 42.06  -12 16.9   1.385   1.926   107   14.3   4:22 (200, 66)  
Mar. 11  15 52.34  -13  2.6   1.288   1.892   111   14.0   4:29 (186, 68)  

* 315P/2013 V6 ( LONEOS )

Now it is 13.7 mag (Jan. 24, Juan Jose Gonzalez). It is observable in excellent condition in the Northern Hemisphere. It stays low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Mar.  4  11 55.68   32  8.1   1.602   2.516   151   14.2   1:10 (180, 23)  
Mar. 11  11 50.74   32 24.1   1.618   2.532   150   14.3   0:37 (180, 23)  

* C/2016 R2 ( PanSTARRS )

Now it is bright as 14.4 mag (Jan. 14, Thomas Lehmann). It will be observable at 11 mag for a long time from 2017 to 2018. It will be unobservable temporarily soon in the Northern Hemisphere, or in May in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Mar.  4   2 56.28  -24 48.2   5.411   4.983    59   14.6  20:00 ( 85, 39)  
Mar. 11   2 59.86  -23 25.5   5.425   4.930    55   14.6  19:49 ( 85, 36)  

* 65P/Gunn

Now it is 15.7 mag (Jan. 4, T. Ikemura, H. Sato). It will brighten up to 14 mag from spring to summer. It locates somewhat low in the Northern Hemisphere. The perihelion distance increased from 2.4 a.u. to 2.9 a.u. in this apparition. So it will not be bright as before.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Mar.  4  16 18.84  -18 50.7   2.832   3.116    97   15.0   4:22 (228, 68)  
Mar. 11  16 23.30  -19 10.5   2.724   3.105   103   14.9   4:29 (212, 72)  

* C/2011 KP36 ( Spacewatch )

Now it is 14.3 mag (Dec. 31, Jakub Cerny). It will be unobservable soon.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Mar.  4   1 25.32   -0 52.3   6.046   5.288    37   15.1  20:00 ( 95,  8)  
Mar. 11   1 31.32   -0 22.0   6.125   5.307    31   15.2  19:49 ( 94,  5)  

* C/2015 O1 ( PanSTARRS )

Now it is 16.7 mag (Nov. 3, Kunihiro Shima). It will be observable at 13 mag for a long time from 2017 to 2018. It is appearing in the morning sky again.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Mar.  4  19 10.63    0 51.6   5.285   4.823    57   15.2   4:22 (251, 23)  
Mar. 11  19 11.49    1 55.2   5.147   4.787    63   15.2   4:29 (244, 29)  

* 93P/Lovas 1

Now it is 15.3 mag (Jan. 31, Alexander Baransky). It stays 15 mag until spring. But it is already unobservable in the Southern Hemisphere. It will be getting lower gradually after this also in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Mar.  4   1 38.06   19 58.0   2.209   1.700    47   15.2  20:00 (114, -2)  
Mar. 11   1 57.63   21 42.2   2.248   1.703    45   15.2  19:49 (115, -2)  

* C/2015 VL62 ( Lemmon-Yeung-PanSTARRS )

Now it is 15.6 mag (Jan. 31, Alexander Baransky). It will brighten up to 12-13 mag and will be observable in good condition in summer. 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.  4   0 10.18   13 17.9   4.131   3.274    26   15.3  20:00 ( 96,-15)  
Mar. 11   0 11.57   13 18.7   4.146   3.236    20   15.2  19:49 ( 94,-19)  

* 81P/Wild 2

It brightened up to 11 mag from spring to summer in 2016. It is appearing in the morning sky again. It will be observable at 16-17 mag in good condition from spring to summer.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Mar.  4  19 29.78  -19 57.6   3.065   2.582    52   15.8   4:22 (274, 31)  
Mar. 11  19 39.85  -19 34.9   3.029   2.623    56   15.8   4:29 (270, 36)  

* C/2014 B1 ( Schwartz )

Now it is 15.6 mag (Jan. 26, Alexander Baransky). It stays 16-17 mag for a long time from 2016 to 2019. It stays near by the equator.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Mar.  4   9  8.20    4  2.7   8.726   9.616   152   15.9  22:19 (180, 51)  
Mar. 11   9  7.02    4 22.8   8.775   9.611   145   15.9  21:50 (180, 51)  

* 74P/Smirnova-Chernykh

Now it is 15.6 mag (Jan. 9, J. L. Martin). It stays observable at 16 mag in good condition until spring. It locates low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Mar.  4   6 43.24   27 43.6   3.167   3.712   116   15.9  20:00 (179, 27)  
Mar. 11   6 44.25   27 40.9   3.255   3.705   109   15.9  19:49 (175, 27)  

* C/2016 B1 ( NEOWISE )

It was observed at 16 mag from spring to summer in 2016. It will be observable at 16 mag also in 2017 from winter to spring.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Mar.  4  17 59.87   -1 48.6   3.440   3.317    74   16.1   4:22 (240, 38)  
Mar. 11  18  6.17   -0  3.7   3.367   3.335    79   16.1   4:29 (231, 42)  

* 43P/Wolf-Harrington

It brightened up to 11-12 mag from summer to autumn. Now it is fading.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Mar.  4  12 12.72  -27 12.6   1.540   2.399   141   16.2   1:27 (180, 82)  
Mar. 11  12  5.76  -26 33.1   1.547   2.447   148   16.3   0:52 (180, 82)  

* 213P/Van Ness

It has not been observed yet in this apparition. It will brighten up to 12 mag in summer. It will be 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.  4  17 48.76  -32 47.9   2.537   2.490    75   16.4   4:22 (278, 57)  
Mar. 11  18  1.07  -33  0.1   2.427   2.462    80   16.2   4:29 (276, 62)  

* C/2014 W2 ( PanSTARRS )

It stayed bright 12 mag for a long time from autum in 2015 to summer in 2016. Now it is fading. It has already faded dwon to 15.6 mag (Jan. 6, Hiroshi Abe).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Mar.  4  17 24.84   -6 55.1   4.466   4.451    82   16.3   4:22 (236, 48)  
Mar. 11  17 24.95   -7 17.1   4.401   4.503    89   16.4   4:29 (226, 54)  

* C/2016 M1 ( PanSTARRS )

Now it is 17.0 mag (Mar. 2, Thomas Lehmann). It is expected to brighten up to 9 mag in summer in 2018. In the Northern Hemisphere, it stays observable until 2018 summer while the comet will be brightening. In the Southern Hemisphere, it is hardly observable in 2017, but it will be observable in good condition in 2018.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Mar.  4  19  2.82   46 22.9   5.934   5.746    74   16.5   4:22 (216, -7)  
Mar. 11  19  6.13   46 54.6   5.850   5.690    75   16.4   4:29 (212, -4)  

* C/2016 A1 ( PanSTARRS )

Now it is 16.5 mag (Jan. 26, Alexander Baransky). It stays 16 mag for a long time from 2017 to 2018.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Mar.  4   8 39.89   -0 45.1   4.840   5.678   144   16.5  21:50 (180, 56)  
Mar. 11   8 34.64    0 35.1   4.889   5.660   137   16.5  21:17 (180, 54)  

* 144P/Kushida

It brightened up to 11-12 mag in autumn. Now it is fading.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Mar.  4  13 52.77  -16 40.3   1.617   2.388   131   16.5   3:06 (180, 72)  
Mar. 11  13 49.07  -16 21.8   1.600   2.438   138   16.7   2:35 (180, 71)  

* C/2015 V1 ( PanSTARRS )

Now it is 16.5 mag (Dec. 29, Sandor Szabo). It will brighten up to 15 mag and will be observable in good condition from autum to winter in 2017. In the Northern Hemisphere, it becomes unobservable temporarily from April to May, but it stays observable in good condition for a long time after that while the comet will be brightening. It is not observable until summer in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Mar.  4   1 56.06   37 18.8   5.300   4.884    60   16.5  20:00 (130, -9)  
Mar. 11   1 58.22   36 31.1   5.375   4.857    53   16.5  19:49 (127,-11)  

* C/2014 OE4 ( PanSTARRS )

Now it is 16.5 mag (Dec. 26, A. Diepvens). It stays 16.5 mag from 2016 to 2017. In the Northern Hemisphere, it stays observable in good condition for a long time. 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.  4  18 42.36   44 47.9   6.422   6.271    76   16.6   4:22 (215, -3)  
Mar. 11  18 47.02   46 12.4   6.393   6.275    78   16.6   4:29 (210, -1)  

* C/2013 US10 ( Catalina )

It brightened up to 6 mag from autumn in 2015 to early 2016. Now it is fading. It has already faded down to 16.0 mag (Jan. 1, Yuji Ohshima). It is observable in good 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.  4   2 57.62   44 38.5   6.176   5.978    73   16.7  20:00 (143, -5)  
Mar. 11   2 59.93   44 13.6   6.345   6.043    67   16.8  19:49 (141, -7)  

* C/2015 TQ209 ( LINEAR )

It has not been observed since last April. Now it is fading. But it must be bright as 17 mag still now.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Mar.  4  17  2.22  -20 13.4   2.746   2.869    86   16.8   4:22 (247, 61)  
Mar. 11  17  6.10  -19 55.8   2.715   2.940    93   16.9   4:29 (236, 66)  

* C/2014 R3 ( PanSTARRS )

Now it is 17.1 mag (Jan. 9, ATLAS-HKO, Haleakala). It brightened rapidly, and became brighter than originally expected. It stays 17 mag until 2017. In the Northern Hemisphere, it stays observable in excellent condition for a long time. It is not observable in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Mar.  4  12 57.98   61 14.1   6.836   7.395   120   16.9   2:12 (180, -6)  
Mar. 11  12 47.98   61 26.9   6.853   7.403   120   17.0   1:34 (180, -6)  

* C/2013 V4 ( Catalina )

It brightened up to 15 mag in early 2016. Now it is fading. It has already faded down to 16.3 mag (Dec. 30, Sandor Szabo). In the Northern Hemisphere, it stays observable in good condition for a long time until autumn when the comet will be fainter than 18 mag. It will never be observable after this in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Mar.  4  15 30.93   70 52.9   6.131   6.431   103   17.0   4:22 (182,-16)  
Mar. 11  15 25.67   71 21.4   6.168   6.461   102   17.1   4:11 (180,-16)  

* C/2010 U3 ( Boattini )

It will pass the perihelion in 2019. However, it has not been brightening since the discovery in 2010. Now it is 17.1 mag (Jan. 4, T. Ikemura, H. Sato). It stays 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.  4   3 46.17   60 10.9   9.455   9.453    86   17.3  20:00 (159,-12)  
Mar. 11   3 48.86   60  2.7   9.527   9.435    81   17.3  19:49 (157,-13)  

* C/2015 X7 ( ATLAS )

Now it is 16.9 mag (Feb. 1, Alexander Baransky). It was observed at 17 mag last winter. It will be observable at 17 mag again next winter. It is observable in good condition in the Northern Hemisphere. But it locates low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Mar.  4  11 12.69   37 56.4   3.279   4.156   148   17.3   0:27 (180, 17)  
Mar. 11  11  8.86   39 13.5   3.337   4.185   144   17.3  23:51 (180, 16)  

* C/2016 T2 ( Matheny )

Now it is 17.2 mag (Dec. 30, A. Diepvens). In the Northern Hemisphere, it is observable at 17-18 mag until March. It is not observable in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Mar.  4  17 20.81   79  0.5   1.722   2.066    95   17.3   4:22 (187,-25)  
Mar. 11  15 27.95   82 52.2   1.729   2.100    97   17.4   4:16 (180,-28)  

* 118P/Shoemaker-Levy 4

Now it is 18.2 mag (Dec. 6, T. Ikemura, H. Sato). It was expected to be observable at 17 mag in good condition in winter. But actually, it is fainter than this ephemeris.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Mar.  4  12 42.84    2  2.8   1.826   2.750   153   17.4   1:57 (180, 53)  
Mar. 11  12 38.35    2 56.9   1.821   2.781   161   17.5   1:25 (180, 52)  

* P/2015 TP200 ( LINEAR )

Now it is 16.1 mag (Dec. 30, Yuji Ohshima). It is observable in excellent condition in the Northern Hemisphere. It locates low in the Southern Hemisphere. It will be fainter than 18 mag in April.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Mar.  4   6 43.74   33  1.7   2.950   3.494   115   17.4  20:00 (179, 22)  
Mar. 11   6 46.36   32 37.0   3.051   3.506   109   17.5  19:49 (176, 22)  

* 94P/Russell 4

Now it is 17.4 mag (Jan. 25, Alexander Baransky). It is observable at 17.5 mag in good condition from winter to spring.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Mar.  4  15  7.91  -11 29.6   1.794   2.394   115   17.5   4:21 (180, 67)  
Mar. 11  15 10.23  -11 38.0   1.735   2.411   121   17.6   3:56 (180, 67)  

* C/2017 A3 ( Elenin )

Now it is 17.3 mag (Jan. 8, CAO, San Pedro de Atacama). It is observable in good condition in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Mar.  4   5 47.07  -30 44.4   3.622   3.869    96   17.7  20:00 (105, 76)  
Mar. 11   5 45.72  -27 56.0   3.694   3.873    92   17.7  19:49 (107, 71)  

* C/2014 S2 ( PanSTARRS )

It brightened up to 8-9 mag from winter to spring in 2016. Now it is fading. It has already faded down to 17.1 mag (Dec. 6, T. Ikemura, H. Sato).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Mar.  4  12 52.56  -15 55.6   4.308   5.143   143   17.8   2:07 (180, 71)  
Mar. 11  12 46.96  -16  6.0   4.305   5.200   151   17.9   1:33 (180, 71)  

* 330P/2015 U1 ( Catalina )

Now it is 18.9 mag (Dec. 27, K. Hills). It is observable at 18 mag in good condition from January to March.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Mar.  4  10 27.91   -8 24.0   2.289   3.251   163   17.9  23:38 (180, 63)  
Mar. 11  10 23.57   -8 13.4   2.319   3.272   160   18.0  23:06 (180, 63)  

* 56P/Slaughter-Burnham

It brightened up to 14.6 mag from autum to winter (Dec. 2, Kunihiro Shima). Now it is fading. It has already faded down to 16.9 mag (Jan. 31, Alexander Baransky). It will be fainter than 18 mag in March.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Mar.  4   4 36.91   30 24.3   2.890   3.033    88   17.9  20:00 (151, 18)  
Mar. 11   4 44.99   30 19.4   3.011   3.060    83   18.1  19:49 (149, 17)  

* C/2013 C2 ( Tenagra )

Very far object. Outburst occured on Feb. 20, 2015, and it brightened up to 15 mag. Now it is 17.8 mag (June 4, Space Surveillance Telescope, Atom Site). It is 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.  4  14 43.65  -26 44.5   8.877   9.358   116   18.0   3:57 (180, 82)  
Mar. 11  14 43.17  -26 43.6   8.783   9.363   123   17.9   3:29 (180, 82)  

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