Weekly Information about Bright Comets (2017 Apr. 1: North)

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Updated on April 1, 2017
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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.

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* 41P/Tuttle-Giacobini-Kresak

Now it is very bright as 6.5 mag (Mar. 28, Juan Jose Gonzalez). It approaches to Earth down to 0.14 a.u. from March to April, and brightens 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 is 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)  
Apr.  1  13 26.10   64 35.4   0.142   1.057   110    5.6   0:43 (180, 61)  
Apr.  8  15 31.44   63 17.7   0.146   1.047   104    5.4   2:22 (180, 62)  

* C/2017 E4 ( Lovejoy )

Bright new comet. It brightened very rapidly. Now it is very bright as 7.1 mag (Mar. 30, Marco Goiato). In the Northern Hemisphere, it stays observable in the morning sky until late April. In the Southern Hemisphere, it becomes unobservable soon.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr.  1  21 38.21    9 50.7   0.608   0.721    45    7.1   4:21 (274, 22)  
Apr.  8  22 52.57   26  6.1   0.686   0.615    37    6.6   4:10 (251, 19)  

* C/2015 ER61 ( PanSTARRS )

Now it is 8.5 mag (Mar. 30, Marco Goiato). It is expected to brighten up to 7 mag from April to May. It locates low in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr.  1  20 29.61  -16 30.7   1.235   1.226    65    7.8   4:21 (307, 18)  
Apr.  8  21  4.84  -13 31.1   1.199   1.170    63    7.6   4:10 (301, 17)  

* C/2015 V2 ( Johnson )

Now it is 9.3 mag (Mar. 29, Marco Goiato). It is expected to brighten up to 6-7 mag from April to July. In the Northern Hemisphere, it stays observable in excellent condition until June. 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)  
Apr.  1  16 31.28   47 35.8   1.338   1.898   107    8.4   3:54 (180, 77)  
Apr.  8  16 27.53   47 31.6   1.258   1.854   109    8.2   3:23 (180, 78)  

* 2P/Encke

Now it is fading rapidly. It has already faded down to 9.6 mag (Mar. 31, Andrew Pearce). In the Southern Hemisphere, it stays observable after this 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)  
Apr.  1  22 32.48  -17 59.8   0.907   0.640    38    9.0   4:21 (288, -5)  
Apr.  8  22 34.54  -18 10.3   0.995   0.769    45   10.5   4:10 (290, -2)  

* C/2017 E1 ( Borisov )

Bright new comet. Now it is 11.0 mag (Mar. 31, Andrew Pearce). It stays 11-12 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. Juan Jose Gonzalez reported it is very bright as 9.2 mag on Mar. 28.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr.  1  21 56.13   -5 36.3   1.356   0.915    42   11.3   4:21 (284, 10)  
Apr.  8  22 32.69   -3 60.0   1.396   0.901    40   11.3   4:10 (279,  6)  

* 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)  
Apr.  1   0 52.93    8 25.0   2.092   1.100     4   11.9  19:46 (111,-13)  
Apr.  8   1 21.51   10 18.3   2.074   1.080     4   11.5  19:53 (113,-13)  

* 73P/Schwassmann-Wachmann 3

Now it is 11.6 mag (Mar. 31, Andrew Pearce). Bright new fragment BT was discovered on Feb. 10. Now the fragment BT is fainter than the primary component. In the Southern Hemisphere, it stays observable for a long time after this. In the Northern Hemisphere, it is not observable temporarily until mid June.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr.  1  22 15.55  -15 51.1   1.496   0.996    41   12.3   4:21 (289,  0)  
Apr.  8  22 44.57  -13 56.5   1.537   1.023    41   12.5   4:10 (286, -2)  

* 71P/Clark

Now it is 16.4 mag (Mar. 8, Thomas Lehmann). It is expected to brighten up to 10 mag in summer. But actually, it is much fainter than this ephemeris recently. 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)  
Apr.  1  16 19.27  -15 25.0   1.024   1.798   125   13.0   3:42 (  0, 40)  
Apr.  8  16 26.45  -16 18.2   0.947   1.769   130   12.7   3:22 (  0, 39)  

* 29P/Schwassmann-Wachmann 1

Appearing in the morning sky. Now it is 15.3 mag (Mar. 5, CAO, San Pedro de Atacama).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr.  1  21 19.86  -16  3.2   6.388   5.855    53   13.8   4:21 (297, 10)  
Apr.  8  21 23.96  -15 39.8   6.294   5.853    59   13.8   4:10 (299, 12)  

* C/2016 R2 ( PanSTARRS )

Now it is bright as 14.4 mag (Jan. 14, Thomas Lehmann). It is not observable now in the Northern Hemisphere. It will be unobservable temporarily in May also in the Southern Hemisphere. It will be getting higher gradually in the morning sky after summer. Then it will be observable at 11 mag for a long time from 2017 autumn to 2018 winter.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr.  1   3 13.12  -19 28.3   5.436   4.773    44   14.5  19:46 ( 68, -2)  
Apr.  8   3 18.24  -18 13.7   5.428   4.720    41   14.4  19:53 ( 73, -7)  

* 65P/Gunn

Now it is 15.4 mag (Feb. 25, 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)  
Apr.  1  16 30.99  -20  1.9   2.422   3.072   122   14.6   3:54 (  0, 35)  
Apr.  8  16 31.44  -20 16.6   2.333   3.061   128   14.5   3:27 (  0, 35)  

* 45P/Honda-Mrkos-Pajdusakova

It approached to 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 11.2 mag (Mar. 19, Osamu Miyazaki).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr.  1  10 31.77   19 21.7   0.743   1.640   140   14.6  21:52 (  0, 74)  
Apr.  8  10 32.53   18 15.1   0.872   1.727   134   15.3  21:25 (  0, 73)  

* 315P/2013 V6 ( LONEOS )

Small outburst occured in mid March. Now it is 13.5 mag (Mar. 15, J.P.Navarro Pina). 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)  
Apr.  1  11 36.58   31 42.3   1.732   2.584   140   14.7  22:56 (  0, 87)  
Apr.  8  11 33.23   30 59.6   1.791   2.604   135   14.9  22:25 (  0, 86)  

* C/2015 O1 ( PanSTARRS )

Now it is 15.7 mag (Mar. 7, Kunihiro Shima). It will be observable at 13 mag for a long time from 2017 to 2018.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr.  1  19 10.52    5 32.5   4.706   4.678    82   14.9   4:21 (306, 48)  
Apr.  8  19  8.72    6 53.7   4.557   4.643    88   14.8   4:10 (310, 52)  

* C/2016 VZ18 ( PanSTARRS )

It brightened very rapidly, and brightened up to 10.7 mag in late February (Feb. 24, Juan Jose Gonzalez). Now it is faint as 14.7 mag (Mar. 26, Sandor Szabo). Small comet, but it approaches to Sun down to 0.9 a.u., and to Earth down to 0.5 a.u. It is observable in excellent condition in the Northern Hemisphere. In the Southern Hemisphere, it stays observable only until mid February.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr.  1   4 35.76   70 54.6   0.528   1.010    75   14.9  19:46 (159, 44)  
Apr.  8   6 52.23   77 11.4   0.533   1.069    82   16.2  19:53 (171, 46)  

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

Now it is 15.6 mag (Feb. 15, 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)  
Apr.  1   0 16.39   13 39.3   4.102   3.127    11   15.0   4:21 (247, -7)  
Apr.  8   0 17.98   13 50.8   4.056   3.093    13   14.9   4:10 (250, -4)  

* 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)  
Apr.  1  18 35.34  -33 20.4   2.097   2.380    93   15.4   4:21 (339, 18)  
Apr.  8  18 45.63  -33 23.1   1.991   2.354    98   15.1   4:10 (340, 18)  

* C/2016 N4 ( MASTER )

Now it is not observable. In the Northern Hemisphere, it will appear in the morning sky in late April. Then it will brighten up to 14 mag from summer to next winter, and it will be observable in excellent condition. In the Southern Hemisphere, it will be observable in the very low sky only from May to June.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr.  1  23 46.32   13  9.3   4.528   3.579    16   15.3   4:21 (252, -2)  
Apr.  8  23 51.61   14 54.1   4.474   3.550    20   15.3   4:10 (253,  1)  

* C/2011 KP36 ( Spacewatch )

Now it is 15.6 mag (Mar. 6, Kunihiro Shima). Now it is not observable. But it will appear in the morning sky in June in the Southern Hemisphere, or in July in the Northern Hemisphere. Then it stays observable at 15.5 mag unil the end of 2017.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr.  1   1 50.01    1  6.8   6.312   5.367    17   15.3  19:46 ( 96, -7)  
Apr.  8   1 56.39    1 34.8   6.356   5.388    13   15.3  19:53 (101,-12)  

* 93P/Lovas 1

Now it is 14.9 mag (Mar. 26, Sandor Szabo). 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)  
Apr.  1   2 59.38   26 12.8   2.378   1.729    39   15.4  19:46 (108, 21)  
Apr.  8   3 20.78   27 25.0   2.425   1.744    37   15.5  19:53 (111, 20)  

* 217P/LINEAR

It will brighten rapidly, and it is expected to brighten up to 12 mag from July to September. In the Southern Hemisphere, it stays at the same altitude in the morning sky. In the Northern Hemisphere, it will be getting higher slowly.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr.  1  21 34.58  -12 44.9   2.268   1.787    49   16.2   4:21 (293,  9)  
Apr.  8  21 54.15  -11 39.3   2.169   1.732    51   15.9   4:10 (291,  9)  

* C/2014 B1 ( Schwartz )

Now it is 15.7 mag (Mar. 26, Sandor Szabo). 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)  
Apr.  1   9  4.97    5 20.3   8.990   9.599   125   15.9  20:25 (  0, 60)  
Apr.  8   9  4.87    5 37.7   9.080   9.596   118   15.9  19:58 (  0, 61)  

* 81P/Wild 2

It brightened up to 11 mag from spring to summer in 2016. It is appearing in the morning sky again. Now it is 16.5 mag (Mar. 4, T. Ikemura, H. Sato). 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)  
Apr.  1  20  5.58  -18 25.7   2.892   2.745    71   16.0   4:21 (312, 21)  
Apr.  8  20 12.52  -18  4.3   2.838   2.786    76   16.0   4:10 (314, 22)  

* 74P/Smirnova-Chernykh

Now it is 16.4 mag (Mar. 3, Alexander Baransky). It stays observable at 16 mag until June. It locates low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr.  1   6 52.96   27 24.8   3.537   3.685    90   16.1  19:46 ( 75, 69)  
Apr.  8   6 57.56   27 16.7   3.633   3.679    84   16.1  19:53 ( 82, 63)  

* 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)  
Apr.  1  19 12.17   48 49.8   5.579   5.522    81   16.2   4:21 (230, 62)  
Apr.  8  19 12.62   49 32.8   5.485   5.466    83   16.1   4:10 (227, 64)  

* C/2016 B1 ( NEOWISE )

Now it is 17.3 mag (Mar. 3, T. Ikemura, H. Sato). 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)  
Apr.  1  18 20.63    5 41.9   3.164   3.395    94   16.1   4:21 (322, 55)  
Apr.  8  18 23.80    7 45.0   3.105   3.417    99   16.1   4:10 (326, 58)  

* 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 16.4 mag (Feb. 15, T. Ikemura, H. Sato).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr.  1  17 20.57   -8 24.3   4.210   4.656   110   16.5   4:21 (352, 46)  
Apr.  8  17 17.48   -8 48.1   4.154   4.708   117   16.5   4:10 (359, 46)  

* C/2016 A1 ( PanSTARRS )

Now it is 16.2 mag (Mar. 26, Sandor Szabo). 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)  
Apr.  1   8 22.55    4 24.5   5.117   5.610   114   16.5  19:46 (  2, 59)  
Apr.  8   8 19.87    5 34.4   5.214   5.594   107   16.6  19:53 ( 20, 59)  

* C/2014 OE4 ( PanSTARRS )

Now it is 16.2 mag (Mar. 4, T. Ikemura, H. Sato). 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)  
Apr.  1  18 58.14   50 38.0   6.318   6.291    83   16.6   4:21 (225, 63)  
Apr.  8  19  0.69   52  8.3   6.299   6.297    85   16.6   4:10 (219, 65)  

* 43P/Wolf-Harrington

It brightened up to 11-12 mag from summer to autumn in last year. Now it is fading. It has already faded down to 14.9 mag (Mar. 3, T. Ikemura, H. Sato).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr.  1  11 45.47  -23 13.2   1.640   2.589   156   16.9  23:05 (  0, 32)  
Apr.  8  11 40.20  -21 51.5   1.697   2.635   154   17.1  22:32 (  0, 33)  

* C/2017 D2 ( Barros )

Now it is 17.3 mag (Mar. 6, iTelescope Observatory, Siding Spring). It will brighten up to 15.5 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)  
Apr.  1  20 27.73  -46  1.0   2.806   2.728    75   17.1   4:21 (327, -4)  
Apr.  8  20 42.06  -45 23.8   2.707   2.698    78   17.0   4:10 (326, -3)  

* C/2014 R3 ( PanSTARRS )

Now it is 16.5 mag (Feb. 23, T. Ikemura, H. Sato). 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)  
Apr.  1  12 16.79   61 11.6   6.963   7.429   114   17.1  23:36 (180, 64)  
Apr.  8  12  6.93   60 48.1   7.019   7.438   111   17.1  22:58 (180, 64)  

* 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)  
Apr.  1  17 10.50  -18 50.7   2.628   3.154   112   17.1   4:21 (356, 36)  
Apr.  8  17  9.55  -18 25.8   2.606   3.225   120   17.2   4:05 (  0, 37)  

* P/2000 S1 ( Skiff )

It has not been recovered yet in this apparition. It will brighten rapidly, and it is expected to be observable at 15.5 mag in good condition from July to September.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr.  1  22 28.05  -27 20.8   3.242   2.635    45   17.3   4:21 (297,-10)  
Apr.  8  22 41.45  -26 12.7   3.173   2.620    48   17.1   4:10 (296, -8)  

* C/2013 V4 ( Catalina )

It brightened up to 15 mag in early 2016. Now it is fading. It has already faded down to 17.1 mag (Mar. 3, K. Hills). 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)  
Apr.  1  15  0.55   72 13.2   6.301   6.551   100   17.2   2:23 (180, 53)  
Apr.  8  14 49.88   72 15.0   6.352   6.581    98   17.2   1:45 (180, 53)  

* P/2015 TP200 ( LINEAR )

Now it is 17.0 mag (Mar. 2, Kunihiro Shima). 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)  
Apr.  1   6 59.61   31 18.8   3.373   3.545    91   17.2  19:46 ( 84, 72)  
Apr.  8   7  5.56   30 51.3   3.484   3.559    86   17.3  19:53 ( 88, 66)  

* C/2017 E3 ( PanSTARRS )

Now it is 17.0 mag (Mar. 13, E. Primucci). In the Southern Hemisphere, it is observable at 17 mag in good condition in spring. It stays extremely low in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr.  1  12 58.47  -45 12.0   5.093   5.884   139   17.2   0:22 (  0, 10)  
Apr.  8  12 54.81  -44 18.6   5.058   5.886   142   17.2  23:47 (  0, 11)  

* 144P/Kushida

It brightened up to 11-12 mag in autumn. Now it is fading. It has already faded down to 16.9 mag (Mar. 3, T. Ikemura, H. Sato).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr.  1  13 31.69  -14 35.7   1.611   2.586   163   17.4   0:56 (  0, 40)  
Apr.  8  13 24.96  -13 48.7   1.640   2.635   171   17.6   0:21 (  0, 41)  

* C/2017 D3 ( ATLAS )

Now it is 17.1 mag (Mar. 7, iTelescope Observatory, Siding Spring). It is observable at 17.5 mag in good condition in spring. It locates somewhat low in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr.  1  12 45.91  -29 24.7   4.047   4.971   155   17.5   0:10 (  0, 25)  
Apr.  8  12 37.64  -27 43.6   4.026   4.970   158   17.5  23:29 (  0, 27)  

* C/2015 X7 ( ATLAS )

Now it is 17.0 mag (Feb. 16, 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)  
Apr.  1  10 58.82   41 53.2   3.584   4.274   128   17.6  22:19 (180, 83)  
Apr.  8  10 56.51   42 23.3   3.686   4.305   122   17.7  21:49 (180, 83)  

* 94P/Russell 4

Now it is 17.8 mag (Feb. 3, T. Ikemura, H. Sato). 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)  
Apr.  1  15  8.64  -11 38.4   1.595   2.466   142   17.7   2:32 (  0, 43)  
Apr.  8  15  5.39  -11 32.2   1.566   2.486   150   17.8   2:01 (  0, 43)  

* C/2016 N6 ( PanSTARRS )

It stays at 14 mag for a long time from 2018 to 2019. In the Northern Hemisphere, it stays observable in good condition while the comet will be brightening gradually. In the Southern Hemisphere, it is not observable until 2018 October.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr.  1  18 32.34   45 50.9   5.233   5.300    88   17.8   4:21 (232, 69)  
Apr.  8  18 30.59   47 37.4   5.137   5.248    90   17.8   4:10 (222, 71)  

* C/2016 T1 ( Matheny )

It will be observable at 17.5 mag in good condition from April to May.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr.  1  18 18.71   -5 41.2   2.066   2.388    96   17.9   4:21 (331, 45)  
Apr.  8  18  6.91   -6 48.1   1.939   2.410   105   17.8   4:10 (341, 46)  

* C/2016 T2 ( Matheny )

Now it is 17.8 mag (Feb. 28, T. Ikemura, H. Sato). 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)  
Apr.  1   9 41.99   73 23.4   1.856   2.217    97   17.8  21:01 (180, 52)  
Apr.  8   9 24.68   68  0.6   1.934   2.261    95   18.0  20:17 (180, 57)  

* 118P/Shoemaker-Levy 4

Now it is 17.9 mag (Mar. 3, T. Ikemura, H. Sato). It stays observable in good condition for a while, but it will be fainter than 18 mag in April.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr.  1  12 22.77    5 31.3   1.886   2.873   169   17.8  23:42 (  0, 60)  
Apr.  8  12 17.88    6 12.5   1.935   2.904   161   18.0  23:10 (  0, 61)  

* 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)  
Apr.  1  14 39.81  -26 28.8   8.552   9.380   144   17.9   2:03 (  0, 28)  
Apr.  8  14 38.17  -26 19.7   8.498   9.386   150   17.9   1:34 (  0, 29)  

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Copyright(C) Seiichi Yoshida (comet@aerith.net). All rights reserved.