Weekly Information about Bright Comets (2018 Apr. 14: North)

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Updated on April 13, 2018
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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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* C/2016 M1 ( PanSTARRS )

Now it is bright as 11.3 mag (Apr. 11, Chris Wyatt). It is expected to brighten up to 9 mag in summer. In the Southern Hemisphere, it stays observable in good condition for a long time until the comet will fade out. In the Northern Hemisphere, it is observable only until June.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr. 14  19 40.44   -5  1.8   2.426   2.589    87   11.1   4:01 (315, 39)  
Apr. 21  19 41.98   -6 35.8   2.269   2.549    94   10.8   3:51 (321, 40)  

* C/2016 R2 ( PanSTARRS )

Now it is 10.5 mag (Apr. 5, Juan Jose Gonzalez). It stays bright as 11 mag for a long time. In the Southern Hemisphere, it is not observable for a long time after this. In the Northern Hemispehre, it stays observable for a long time until the comet fades out. But it will be getting lower gradually after this.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr. 14   4 46.94   40  5.9   3.081   2.617    53   11.0  19:59 (118, 36)  
Apr. 21   4 57.90   41 30.6   3.141   2.610    49   11.0  20:07 (121, 32)  

* C/2016 N6 ( PanSTARRS )

Now it is 12.0 mag (Apr. 5, Juan Jose Gonzalez). It stays 12 mag for a long time until spring in 2019. In the Northern Hemisphere, it stays observable in good condition for a long time, although it becomes unobservable temporarily from mid June to August. In the Southern Hemisphere, it is not observable until September.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr. 14   8  0.12   67 36.1   2.764   2.849    84   12.1  19:59 (165, 55)  
Apr. 21   7 52.34   63 58.6   2.832   2.824    79   12.1  20:07 (155, 55)  

* 66P/du Toit

It brightened rapidly as expected. Now it is very bright as 12.4 mag (Apr. 11, Chris Wyatt). It stays at 12 mag until June. In the Southern Hemisphere, it stays observable in excellent condition. In the Northern Hemisphere, it will be unobservable from April to June when the comet becomes brightest.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr. 14  20  9.91  -39 48.6   0.974   1.373    87   12.8   4:01 (330,  7)  
Apr. 21  20 48.58  -39 57.3   0.941   1.344    87   12.4   3:51 (327,  4)  

* 169P/NEAT

The condition of this apparition is worst. It brightens up to 12.5 mag from April to May. But it is not observable at all.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr. 14   0 42.97    4 49.8   1.622   0.674    11   13.4   4:01 (255,-12)  
Apr. 21   1 26.34    7 52.4   1.607   0.626     7   12.8   3:51 (249,-15)  

* C/2015 O1 ( PanSTARRS )

Now it is very bright as 12.2 mag (Apr. 5, Juan Jose Gonzalez). It will be observable at 12-13 mag for a long time from 2017 to 2018. In the Southern Hemisphere, it will be hardly observable after this.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr. 14  14 56.39   54 39.1   3.247   3.760   113   12.9   1:30 (180, 70)  
Apr. 21  14 32.80   55 58.3   3.277   3.769   111   12.9   0:39 (180, 69)  

* C/2017 T3 ( ATLAS )

Now it is 15.1 mag (Mar. 22, Alexander Baransky). It will brighten up to 9 mag in summer. However, it is hardly observable when it is bright. In the Northern Hemisphere, it is not observable until late December. In the Southern Hemisphere, it is observable from July to September, but it locates in extremely low.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr. 14   1 59.35   32 41.7   2.701   1.837    24   13.8  19:59 (129,  3)  
Apr. 21   2 13.97   31 21.5   2.652   1.744    20   13.5  20:07 (131, -1)  

* 29P/Schwassmann-Wachmann 1

Appearing in the morning sky. Now it is a bit brighter, 15.7 mag (Apr. 7, Jean-Francois Soulier).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr. 14  22 50.92   -3 40.9   6.504   5.787    41   13.8   4:01 (278,  6)  
Apr. 21  22 55.29   -3  7.0   6.427   5.786    46   13.8   3:51 (280,  8)  

* 37P/Forbes

Now it is bright as 13.6 mag (Apr. 11, Chris Wyatt). 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)  
Apr. 14  20 55.58  -23 44.8   1.578   1.623    74   14.2   4:01 (312, 14)  
Apr. 21  21 14.89  -22  2.5   1.527   1.616    76   14.1   3:51 (311, 14)  

* 48P/Johnson

Now it is 17.1 mag (Mar. 24, Toshihiko Ikemura, Hirohisa Sato). It will brighten rapidly after this, and it will brighten up to 11 mag from summer to autumn. 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)  
Apr. 14  20 33.59  -16 34.7   2.206   2.212    77   15.0   4:01 (312, 22)  
Apr. 21  20 46.37  -16 13.9   2.110   2.190    80   14.6   3:51 (312, 23)  

* C/2015 V2 ( Johnson )

It brightened up to 7.1 mag from May to June in 2017 (June 21, Juan Jose Gonzalez). Now it is fading. It has already faded down to 15.2 mag (Mar. 4, B. Lutkenhoner). In the Southern Hemisphere, it stays observable for a long time after this. It will never be observable again in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr. 14   0 34.37  -43 43.8   4.497   3.996    54   14.7   4:01 (303,-34)  
Apr. 21   0 44.52  -43 24.0   4.515   4.061    57   14.8   3:51 (303,-33)  

* 185P/Petriew

It brightened up to 11 mag in February. Now it is fading. It has already faded down to 14.5 mag (Apr. 5, Martin Masek). It stays observable in the evening sky until the comet fades out.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr. 14   5 15.94   11 33.5   1.706   1.415    56   15.0  19:59 ( 84, 29)  
Apr. 21   5 41.22   11 53.4   1.797   1.482    55   15.5  20:07 ( 86, 27)  

* C/2017 K6 ( Jacques )

It brightened up to 12.7 mag in winter (Jan. 6, Thomas Lehmann). Now it is fading. It has already faded down to 15.0 mag (Mar. 22, Toshihiko Ikemura, Hirohisa Sato). It will be getting lower gradually after this in the evening sky. It will be unobservable in May.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr. 14   4  9.00   13 20.1   3.021   2.339    39   15.1  19:59 ( 96, 16)  
Apr. 21   4 20.10   15 32.2   3.125   2.382    35   15.3  20:07 (101, 12)  

* C/2017 M4 ( ATLAS )

Now it is 15.7 mag (Mar. 16, Toshihiko Ikemura, Hirohisa Sato). It is expected to brighten up to 13-14 mag from 2018 to 2019. In the Northern Hemisphere, it stays observable in good condition for a long time. In the Southern Hemisphere, it locates extremely low until summer.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr. 14  19 35.46   42 55.8   4.179   4.166    82   15.3   4:01 (242, 64)  
Apr. 21  19 31.67   43 42.3   4.075   4.127    85   15.2   3:51 (239, 68)  

* 62P/Tsuchinshan 1

It brightened up to 9.2 mag from November to December (Nov. 16, Juan Jose Gonzalez). Now it is fading rapidly. It has already faded down to 16.5 mag (Mar. 24, Toshihiko Ikemura, Hirohisa Sato). It stays observable in good condition until summer when it fades out.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr. 14  14  1.79    5 33.8   1.104   2.084   162   15.3   0:35 (  0, 60)  
Apr. 21  13 54.27    5 35.1   1.152   2.132   162   15.7   0:00 (  0, 60)  

* C/2017 B3 ( LINEAR )

Now it is 16.2 mag (Mar. 17, S. G. McAndrew). It stays 15 mag from 2018 to 2019, and it will be observable for a long time in the Southern Hemisphere. In the Northern Hemisphere, it will never be observable again.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr. 14  13 23.12  -67  2.7   4.049   4.661   122   15.4  23:52 (  0,-12)  
Apr. 21  13 10.55  -67 36.5   3.998   4.630   123   15.4  23:12 (  0,-13)  

* 21P/Giacobini-Zinner

Now it is 17.7 mag (Apr. 2, Thomas Lehmann). It will brighten rapidly, and brighten up to 7 mag from August to September. In the Northern Hemisphere, it will be observable in excellent condition. In the Southern Hemisphere, it will be unobservable from July to August. But it will be observable in good condition before and after tha.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr. 14  19 15.86   12 13.4   1.854   2.123    90   16.1   4:01 (307, 57)  
Apr. 21  19 26.45   14 40.8   1.737   2.060    93   15.7   3:51 (306, 60)  

* 65P/Gunn

Appearing in the morning sky in the Southern Hemisphere. It is observable at 15 mag in good condition in 2018. It is not observable until May in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr. 14  22 18.01  -18 40.5   3.514   3.043    54   15.9   4:01 (295,  3)  
Apr. 21  22 27.26  -18  3.9   3.446   3.053    59   15.8   3:51 (296,  5)  

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

Appearing in the morning sky. It is fading now. But it stays 16 mag until summer. But actually, it is 18.1 mag (Mar. 23, Toshihiko Ikemura, Hirohisa Sato), fainter than this ephemeris.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr. 14  19  1.23  -24 34.9   3.265   3.576    99   15.9   4:01 (336, 27)  
Apr. 21  18 52.63  -25 12.3   3.171   3.621   108   15.9   3:51 (343, 28)  

* C/2016 A1 ( PanSTARRS )

Now it is 15.8 mag (Mar. 22, Alexander Baransky). It stays 16 mag for a long time from 2017 to 2018. It is 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)  
Apr. 14   7  6.08   44 30.5   5.521   5.431    79   15.9  19:59 (120, 61)  
Apr. 21   7  5.38   44 39.9   5.646   5.441    73   16.0  20:07 (120, 55)  

* (3552) Don Quixote

It brightens up to 16 mag in spring. In the Southern Hemisphere, it stays observable until August, but it will be unobservable after that. In the Northern Hemisphere, it stays unobservable until June, but it will be observable in good condition after that. Its cometary activity was observed on Mar. 26 (M. Mommert, D. Polishook, N. Moskovitz).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr. 14  22 54.65  -31 30.5   1.558   1.277    54   16.1   4:01 (301,-11)  
Apr. 21  23 18.42  -27 32.9   1.543   1.259    54   16.0   3:51 (297,-10)  

* 74P/Smirnova-Chernykh

Now it is 16.0 mag (Apr. 6, Sandor Szabo). It will be fading slowly until summer.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr. 14  11 24.46   13 13.3   2.702   3.547   142   16.1  21:54 (  0, 68)  
Apr. 21  11 22.16   13 12.8   2.768   3.549   134   16.1  21:24 (  0, 68)  

* C/2017 S3 ( PanSTARRS )

It is expected to approach to Sun down to 0.2 a.u. and brighten up to 3 mag in August. Now it is 17.5 mag (Mar. 24, D. Buczynski). In the Northern Hemisphere, it stays observable in the morning sky until early August when the comet brightens up to 6 mag. It is not observable at all in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr. 14  23 15.97   52 59.0   3.049   2.544    51   16.5   4:01 (223, 29)  
Apr. 21  23 30.66   53 30.6   2.952   2.440    50   16.2   3:51 (223, 30)  

* C/2017 S6 ( Catalina )

It brightened up to 15-16 mag in winter. Appearing in the morning sky. It stays observable at 16.5 mag for a while. It will be observable in good condition after this in the Southern Hemisphere. But it stays low in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr. 14  22 58.46   -1 48.2   2.326   1.668    38   16.6   4:01 (276,  5)  
Apr. 21  22 57.47   -3 11.0   2.238   1.706    46   16.6   3:51 (279,  8)  

* C/2014 B1 ( Schwartz )

Now it is 16.6 mag (Apr. 9, Toshihiko Ikemura, Hirohisa Sato). It will be fading slowly after this.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr. 14  10 17.64    8 23.9   8.963   9.632   129   16.6  20:48 (  0, 63)  
Apr. 21  10 17.34    8 37.5   9.060   9.637   122   16.6  20:20 (  0, 64)  

* C/2018 A3 ( ATLAS )

Now it is 16.8 mag (Mar. 12, Toshihiko Ikemura, Hirohisa Sato). It will brighten up to 15 mag in January, 2019. It stays observable in excellent condition in the Northern Hemispehre. It is observable only until June in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr. 14  11 21.59   30 52.8   3.430   4.144   129   16.9  21:51 (  0, 86)  
Apr. 21  11 11.33   31 58.7   3.490   4.106   121   16.8  21:13 (  0, 87)  

* C/2016 N4 ( MASTER )

Now it is 16.4 mag (Mar. 14, Toshihiko Ikemura, Hirohisa Sato). It will be fading after this. In the Northern Hemisphere, it stays observable in the northern sky for a long time. It is not observable at all after this in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr. 14   0 41.42   85 43.8   3.868   3.764    76   16.9   4:01 (185, 34)  
Apr. 21   3  8.78   86 52.7   3.926   3.798    75   16.9  20:07 (176, 34)  

* 143P/Kowal-Mrkos

Now it is 16.8 mag (Apr. 5, Martin Masek). It is observable at 17 mag in good condition in spring.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr. 14  12 52.98  -11 41.8   1.542   2.537   171   16.9  23:22 (  0, 43)  
Apr. 21  12 49.34  -11  3.6   1.553   2.535   164   17.1  22:51 (  0, 44)  

* C/2010 U3 ( Boattini )

Now it is 16.0 mag (Apr. 6, Sandor Szabo). It is observable in good conditioin in the Northern Hemisphere. It is not observable for a long time in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr. 14   6  8.67   72 46.0   8.851   8.653    75   16.9  19:59 (161, 45)  
Apr. 21   6 16.87   72 24.8   8.907   8.644    71   16.9  20:07 (160, 43)  

* C/2018 E1 ( ATLAS )

Now it is 16.8 mag (Mar. 15, iTelescope Observatory, Siding Spring). In the Southern Hemisphere, it is observable at 17 mag in good condition. It will be too low to observe in June. In the Northern Hemisphere, it locates extremely low only in spring.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr. 14   5 38.63  -29 28.5   2.849   2.706    71   17.0  19:59 ( 48,  6)  
Apr. 21   5 51.56  -26 43.3   2.893   2.706    69   17.0  20:07 ( 53,  4)  

* C/2014 OE4 ( PanSTARRS )

Now it is 16.7 mag (Mar. 17, Toshihiko Ikemura, Hirohisa Sato). It will be fading gradually after this, and it will be fainter than 18 mag in autumn. 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. 14  22 24.23   66  1.8   7.444   7.076    64   17.0   4:01 (210, 38)  
Apr. 21  22 34.06   66 46.7   7.477   7.098    64   17.1   3:51 (209, 39)  

* C/2017 D3 ( ATLAS )

Now it is 17.3 mag (Mar. 12, Toshihiko Ikemura, Hirohisa Sato). It will be fading after this, and it will be fainter than 18 mag in July.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr. 14  11 47.70   23 24.7   4.855   5.652   139   17.1  22:17 (  0, 78)  
Apr. 21  11 42.10   24 18.8   4.959   5.677   131   17.1  21:44 (  0, 79)  

* C/2017 O1 ( ASASSN )

It brightened up to 8.1 mag in autumn (Oct. 3, Juan Jose Gonzalez). Now it is fading rapidly. It has already faded down to 18.8 mag (Mar. 24, J.-F. Soulier). In the Northern Hemisphere, it stays observable in good condition for a long time. In the Southern Hemisphere, it will never be observable again after this.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr. 14   8 14.68   61 17.8   2.655   2.796    87   17.1  19:59 (162, 61)  
Apr. 21   8 27.68   59 12.8   2.786   2.865    84   17.4  20:07 (154, 61)  

* C/2017 T1 ( Heinze )

It brightened up to 9-10 mag from December to February. Now it is fading very rapidly. It has already faded down to 16.1 mag (Mar. 28, Martin Masek). In the Northern Hemisphere, it stays extremely low after this. In the Southern Hemisphere, it will be getting higher in the morning sky after this, then it stays observable in good condition.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr. 14  22  5.68  -19 59.3   1.393   1.206    57   17.1   4:01 (298,  5)  
Apr. 21  22 11.93  -25 10.8   1.366   1.317    65   17.4   3:51 (304,  3)  

* C/2018 C2 ( Lemmon )

Now it is 17.3 mag (Mar. 22, Toshihiko Ikemura, Hirohisa Sato). It is observable at 17 mag from spring to summer.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr. 14  15 11.89   41 39.0   1.312   2.048   123   17.2   1:45 (180, 83)  
Apr. 21  15  8.76   41 10.1   1.279   2.024   124   17.1   1:14 (180, 84)  

* C/2017 E3 ( PanSTARRS )

Now it is 16.4 mag (Mar. 13, Toshihiko Ikemura, Hirohisa Sato). It will be fainter than 18 mag in summer.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr. 14  14 54.65  -13  4.9   5.381   6.324   158   17.2   1:28 (  0, 42)  
Apr. 21  14 51.58  -12  8.5   5.362   6.342   165   17.2   0:57 (  0, 43)  

* 30P/Reinmuth 1

Now it is 17.7 mag (Mar. 25, D. Buczynski). It stays observable at 17-18 mag in good condition for a while.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr. 14  15 11.08   -4 58.1   1.769   2.706   154   17.4   1:44 (  0, 50)  
Apr. 21  15  5.74   -4 30.3   1.773   2.742   160   17.4   1:12 (  0, 50)  

* C/2014 R3 ( PanSTARRS )

Now it is 17.1 mag (Mar. 12, Toshihiko Ikemura, Hirohisa Sato). It will be fading gradually after this.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr. 14  10 49.78   38 34.9   7.697   8.240   119   17.4  21:20 (180, 87)  
Apr. 21  10 46.09   38  4.2   7.806   8.260   113   17.4  20:48 (180, 87)  

* C/2017 M5 ( TOTAS )

Now it is 18.4 mag (Mar. 17, Toshihiko Ikemura, Hirohisa Sato). It stays observable at 17 mag in good condition from spring to autumn.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr. 14  20 46.63   -2  9.2   6.251   6.000    70   17.4   4:01 (298, 31)  
Apr. 21  20 50.10   -1 38.2   6.150   5.997    76   17.4   3:51 (300, 33)  

* 365P/2017 U6 ( PanSTARRS )

It brightened up to 15.7 mag in February (Feb. 11, Catalina Sky Survey). Now it is fading rapidly. It has already faded down to 16.9 mag (Mar. 24, Toshihiko Ikemura, Hirohisa Sato). It will be fainter than 18 mag in late April.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr. 14  13 17.41   19 25.9   0.563   1.521   151   17.6  23:47 (  0, 74)  
Apr. 21  13 15.21   17 23.2   0.604   1.556   149   17.8  23:17 (  0, 72)  

* 187P/LINEAR

Now it is 19.7 mag (Mar. 24, Toshihiko Ikemura, Hirohisa Sato). It was predicted to be observable at 17.5 mag in good condition from spring to summer. But recently, it is fainter than predicted.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr. 14  16 36.85   -8 29.7   3.126   3.883   133   17.8   3:10 (  0, 46)  
Apr. 21  16 35.08   -8 18.4   3.057   3.883   140   17.7   2:41 (  0, 47)  

* 24P/Schaumasse

It brightened up to 9.7 mag in November (Nov. 16, Juan Jose Gonzalez). Now it is fading rapidly. It has already faded down to 16.6 mag (Mar. 22, W. Hasubick).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr. 14  16 45.96  -13 14.2   1.336   2.136   131   17.7   3:19 (  0, 42)  
Apr. 21  16 40.49  -13 25.0   1.333   2.195   139   18.1   2:46 (  0, 42)  

* 64P/Swift-Gehrels

It has not been observed yet in this apparition. It will brighten rapidly, and it is expected to brighten up to 10 mag in autumn. It will be 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. 14  21 27.83  -15  5.1   2.873   2.599    64   18.0   4:01 (300, 14)  
Apr. 21  21 38.35  -13 59.3   2.739   2.546    68   17.8   3:51 (301, 16)  

* 186P/Garradd

Now it is 17.9 mag (Mar. 16, ATLAS-HKO, Haleakala). It stays 18 mag from 2018 to 2020. It is observable in good 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)  
Apr. 14  12 36.99  -38  9.3   3.634   4.522   148   17.9  23:06 (  0, 17)  
Apr. 21  12 32.02  -37 53.5   3.634   4.518   148   17.9  22:34 (  0, 17)  

* 105P/Singer Brewster

Now it is 17.0 mag (Mar. 26, Alexander Baransky). It is observable at 18 mag in good condition in spring.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr. 14  12 25.37   -2 10.2   1.254   2.232   162   17.9  22:55 (  0, 53)  
Apr. 21  12 22.02   -1  5.7   1.261   2.212   154   17.9  22:24 (  0, 54)  

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