Weekly Information about Bright Comets (2018 Apr. 28: North)

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Updated on April 27, 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 9.9 mag (Apr. 19, Juan Jose Gonzalez). 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. 28  19 42.30   -8 28.1   2.113   2.511   101   10.6   3:40 (327, 41)  
May   5  19 41.17  -10 43.1   1.961   2.475   108   10.4   3:31 (333, 41)  

* C/2016 R2 ( PanSTARRS )

Now it is 11.5 mag (Apr. 18, 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. 28   5  9.85   42 52.4   3.195   2.605    46   11.0  20:15 (125, 28)  
May   5   5 22.81   44 11.1   3.245   2.603    43   11.0  20:23 (128, 25)  

* 66P/du Toit

It brightened rapidly as expected. Now it is very bright as 10.8 mag (Apr. 20, Katsumi Yoshimoto). It stays at 11-12 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. 28  21 26.75  -39 26.9   0.919   1.321    86   12.1   3:40 (323,  2)  
May   5  22  3.17  -38 20.5   0.905   1.304    85   11.9   3:31 (320,  1)  

* C/2016 N6 ( PanSTARRS )

Now it is 12.1 mag (Apr. 18, 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. 28   7 48.77   60 29.7   2.907   2.802    73   12.1  20:15 (146, 53)  
May   5   7 47.88   57 11.4   2.986   2.780    68   12.1  20:23 (139, 49)  

* 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. 28   2 11.51   10 45.7   1.605   0.604     3   12.5   3:40 (242,-19)  
May   5   2 57.53   13 19.2   1.615   0.613     3   12.6  20:23 (122,-18)  

* 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. 28   2 28.86   29 56.7   2.593   1.650    16   13.2  20:15 (133, -5)  
May   5   2 44.08   28 25.2   2.526   1.556    12   12.9   3:31 (226, -8)  

* C/2015 O1 ( PanSTARRS )

Now it is very bright as 12.3 mag (Apr. 18, 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. 28  14  8.20   56 44.7   3.325   3.778   109   13.0  23:40 (180, 68)  
May   5  13 43.87   56 58.5   3.389   3.789   105   13.0  22:49 (180, 68)  

* 29P/Schwassmann-Wachmann 1

Appearing in the morning sky. Now it is a bit brighter, 15.4 mag (Apr. 25, Jean-Francois Soulier).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr. 28  22 59.40   -2 34.0   6.343   5.785    52   13.7   3:40 (281, 11)  
May   5  23  3.24   -2  2.1   6.253   5.784    58   13.7   3:31 (283, 15)  

* 37P/Forbes

Now it is bright as 12.6 mag (Apr. 16, Chris Wyatt). It will be observable at 13-14 mag in good condition from spring to summer.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr. 28  21 33.34  -20 12.9   1.478   1.611    78   14.0   3:40 (309, 16)  
May   5  21 50.88  -18 17.4   1.432   1.610    80   13.9   3:31 (308, 17)  

* 48P/Johnson

Now it is 16.3 mag (Apr. 20, 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. 28  20 58.85  -15 53.8   2.015   2.169    84   14.3   3:40 (313, 24)  
May   5  21 10.99  -15 35.3   1.921   2.150    88   14.0   3:31 (314, 25)  

* 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. 28   0 54.22  -43  9.6   4.529   4.127    60   14.8   3:40 (303,-32)  
May   5   1  3.45  -43  0.9   4.540   4.192    63   14.9   3:31 (304,-30)  

* 21P/Giacobini-Zinner

Now it is 16.4 mag (Apr. 22, Toshihiko Ikemura, Hirohisa Sato). 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. 28  19 37.00   17 21.0   1.624   1.996    95   15.3   3:40 (304, 63)  
May   5  19 47.55   20 14.0   1.517   1.932    97   14.9   3:31 (302, 66)  

* C/2017 M4 ( ATLAS )

Now it is 15.0 mag (Apr. 19, 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. 28  19 26.45   44 27.9   3.971   4.088    89   15.1   3:40 (233, 71)  
May   5  19 19.71   45 10.6   3.868   4.051    93   15.0   3:31 (223, 75)  

* 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. 28  12 57.59  -67 57.3   3.955   4.599   124   15.3  22:31 (  0,-13)  
May   5  12 44.87  -68  5.4   3.922   4.569   124   15.3  21:51 (  0,-13)  

* 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 unobservable soon.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr. 28   4 31.28   17 34.1   3.225   2.426    31   15.4  20:15 (106,  9)  
May   5   4 42.54   19 26.7   3.321   2.473    27   15.6  20:23 (111,  5)  

* 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 16.6 mag (Apr. 22, Thomas Lehmann). 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. 28  23 45.75   54  5.6   2.848   2.335    50   16.0   3:40 (222, 30)  
May   5   0  1.36   54 43.4   2.737   2.228    50   15.7   3:31 (222, 31)  

* 65P/Gunn

Appearing in the morning sky. It is observable at 15 mag in 2018, in good 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. 28  22 36.07  -17 29.6   3.375   3.063    63   15.8   3:40 (297,  7)  
May   5  22 44.41  -16 57.9   3.300   3.074    68   15.8   3:31 (298,  9)  

* 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. 28  18 42.35  -25 50.7   3.086   3.666   117   15.9   3:40 (350, 28)  
May   5  18 30.35  -26 28.5   3.012   3.711   127   15.9   3:31 (357, 29)  

* (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. 28  23 40.16  -23 25.7   1.532   1.246    54   16.0   3:40 (293, -9)  
May   5   0  0.14  -19 13.0   1.524   1.240    54   16.0   3:31 (289, -7)  

* C/2016 A1 ( PanSTARRS )

Now it is 16.1 mag (Apr. 15, Toshihiko Ikemura, Hirohisa Sato). 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. 28   7  5.47   44 48.9   5.767   5.452    66   16.1  20:15 (120, 49)  
May   5   7  6.28   44 57.9   5.881   5.464    60   16.1  20:23 (122, 43)  

* 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 16.6 mag (Apr. 12, 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. 28  13 47.42    5 25.1   1.211   2.180   158   16.1  23:21 (  0, 60)  
May   5  13 41.59    5  4.4   1.281   2.229   153   16.5  22:48 (  0, 60)  

* 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. 28   6  5.00   12  2.3   1.895   1.548    54   16.1  20:15 ( 88, 25)  
May   5   6 27.38   12  1.3   1.998   1.615    53   16.7  20:23 ( 90, 22)  

* 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. 28  11 20.68   13  6.0   2.842   3.551   127   16.2  20:55 (  0, 68)  
May   5  11 20.05   12 53.1   2.925   3.553   121   16.2  20:27 (  0, 68)  

* C/2017 K4 ( ATLAS )

It was observed at 16 mag from summer to autumn in 2017. It will be observable at 16.5 mag in good condition also in 2018. It locates somewhat low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr. 28  23 39.34    8 31.5   3.567   2.867    39   16.3   3:40 (266, 10)  
May   5  23 49.11   10  5.9   3.538   2.894    43   16.4   3:31 (266, 12)  

* 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. 28  22 55.55   -4 45.6   2.137   1.749    54   16.6   3:40 (284, 11)  
May   5  22 52.42   -6 35.8   2.025   1.795    62   16.6   3:31 (288, 14)  

* 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. 28  10 17.34    8 49.2   9.164   9.642   115   16.6  20:15 ( 12, 63)  
May   5  10 17.64    8 59.1   9.275   9.647   108   16.7  20:23 ( 30, 61)  

* C/2018 A3 ( ATLAS )

Now it is 16.7 mag (Apr. 15, 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. 28  11  1.94   32 51.5   3.562   4.068   113   16.9  20:36 (  0, 88)  
May   5  10 53.57   33 32.7   3.644   4.032   105   16.9  20:23 ( 73, 85)  

* 364P/2018 A2 ( PanSTARRS )

First return of a new periodic comet which brightened up to 13 mag in 2013. Now it is 17.8 mag (Apr. 19, Katsumi Yoshimoto). It will brighten very rapidly after this, up to 11 mag in summer. In the Southern Hemisphere, it stays observable in good condition all through this apparition. In the Northern Hemisphere, it is not observable at the high light from mid June to mid August.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Apr. 28   8 35.43   33 32.4   0.722   1.191    85   17.7  20:15 ( 95, 64)  
May   5   8 38.01   31 24.9   0.696   1.120    79   16.9  20:23 ( 95, 57)  

* C/2018 C2 ( Lemmon )

Now it is 16.3 mag (Apr. 15, 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. 28  15  4.62   40 12.8   1.251   2.004   124   17.0   0:43 (180, 85)  
May   5  14 59.90   38 44.6   1.228   1.987   125   16.9   0:11 (180, 86)  

* 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. 28   6 25.73   72  4.3   8.960   8.635    68   16.9  20:15 (159, 41)  
May   5   6 35.16   71 44.5   9.009   8.627    64   17.0  20:23 (158, 39)  

* 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. 28   6  4.38   86 19.7   3.987   3.833    73   17.0  20:15 (176, 37)  
May   5   7 42.63   84 33.9   4.052   3.869    72   17.1  20:23 (174, 38)  

* C/2014 OE4 ( PanSTARRS )

Now it is 16.4 mag (Apr. 19, 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. 28  22 43.55   67 32.3   7.506   7.120    63   17.1   3:40 (208, 40)  
May   5  22 52.69   68 18.3   7.532   7.143    63   17.1   3:31 (207, 40)  

* C/2017 E3 ( PanSTARRS )

Now it is 16.6 mag (Apr. 21, 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. 28  14 48.37  -11 11.7   5.360   6.359   172   17.2   0:27 (  0, 44)  
May   5  14 45.11  -10 15.3   5.373   6.377   174   17.2  23:52 (  0, 45)  

* C/2017 D3 ( ATLAS )

Now it is 18.0 mag (Apr. 19, 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. 28  11 37.05   25  4.9   5.075   5.702   124   17.2  21:11 (  0, 80)  
May   5  11 32.63   25 43.3   5.201   5.728   116   17.3  20:40 (  0, 81)  

* 143P/Kowal-Mrkos

Now it is 16.3 mag (Apr. 20, Toshihiko Ikemura, Hirohisa Sato). 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. 28  12 46.34  -10 26.6   1.577   2.533   156   17.2  22:21 (  0, 45)  
May   5  12 44.21   -9 53.2   1.611   2.532   149   17.4  21:51 (  0, 45)  

* 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. 28  21 48.77  -12 50.3   2.605   2.492    72   17.5   3:40 (301, 18)  
May   5  21 59.09  -11 38.0   2.470   2.438    76   17.3   3:31 (302, 20)  

* C/2017 M5 ( TOTAS )

Now it is 17.9 mag (Apr. 21, 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. 28  20 53.17   -1  7.9   6.046   5.995    82   17.4   3:40 (303, 36)  
May   5  20 55.82   -0 38.5   5.942   5.993    88   17.3   3:31 (306, 39)  

* C/2014 R3 ( PanSTARRS )

Now it is 16.9 mag (Apr. 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. 28  10 42.94   37 30.5   7.921   8.281   107   17.5  20:18 (180, 88)  
May   5  10 40.32   36 54.2   8.043   8.302   101   17.5  20:23 (106, 83)  

* 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. 28  14 59.95   -4  6.0   1.791   2.778   166   17.5   0:38 (  0, 51)  
May   5  14 54.03   -3 46.6   1.821   2.814   167   17.6   0:05 (  0, 51)  

* 187P/LINEAR

Now it is 19.3 mag (Apr. 20, 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. 28  16 32.56   -8  8.0   2.998   3.882   147   17.7   2:11 (  0, 47)  
May   5  16 29.37   -7 59.3   2.951   3.881   153   17.6   1:40 (  0, 47)  

* C/2017 O1 ( ASASSN )

It brightened up to 8-9 mag in autumn. Now it is fading rapidly. It has already faded down to 18.3 mag (Apr. 15, Toshihiko Ikemura, Hirohisa Sato). 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. 28   8 40.08   57 11.1   2.920   2.934    80   17.6  20:15 (147, 60)  
May   5   8 51.97   55 12.8   3.056   3.004    77   17.9  20:23 (140, 58)  

* 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, fainter than 18.5 mag (Apr. 17, 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. 28  22 17.75  -30 42.5   1.340   1.428    73   17.7   3:40 (309,  1)  
May   5  22 22.87  -36 36.3   1.318   1.537    81   18.0   3:31 (315, -1)  

* 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. 28  12 27.50  -37 31.7   3.647   4.513   145   17.9  22:02 (  0, 17)  
May   5  12 23.58  -37  5.3   3.671   4.509   142   17.9  21:30 (  0, 18)  

* 105P/Singer Brewster

Now it is 16.6 mag (Apr. 19, Toshihiko Ikemura, Hirohisa Sato). 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. 28  12 19.64   -0  9.0   1.278   2.193   147   17.9  21:54 (  0, 55)  
May   5  12 18.45    0 37.6   1.305   2.174   139   17.9  21:26 (  0, 56)  

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