Weekly Information about Bright Comets (2019 June 1: South)

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Updated on June 1, 2019
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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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* C/2018 W1 ( Catalina )

Now it is very bright as 11.2 mag (May 31, Chris Wyatt). It brightened very rapidly when it was not observable near by Sun. In the Southern Hemisphere, it stays observable in the evening sky for a long time after this while the comet will be fading. It is not observable at all in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June  1   5 24.69  -28 13.5   1.769   1.390    51   11.5  18:26 ( 69, 20)  
June  8   5 53.68  -30 55.1   1.724   1.414    55   11.7  18:25 ( 67, 22)  

* C/2018 R3 ( Lemmon )

Now it is very bright as 11.5 mag (May 24, Michael Jager). It brightens up to 11.5 mag from May to June. However, it locates very low 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)  
June  1   4 51.59   59 40.0   1.935   1.294    37   11.6  18:26 (144,-31)  
June  8   5 49.19   57 47.1   1.965   1.291    36   11.6  18:25 (144,-26)  

* C/2018 N2 ( ASASSN )

Appearing in the morning sky in the Southern Hemisphere. It will appear in the morning sky in late June in the Northern Hemisphere. It will brighten up to 10.5 mag and it will be observable in good condition from autumn to winter.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June  1   2 16.87    2  1.5   4.231   3.497    38   12.6   5:29 (252, 20)  
June  8   2 21.36    3 28.2   4.134   3.468    43   12.5   5:32 (246, 25)  

* 78P/Gehrels 2

Now it is not observable. It will appear in the morning sky again at 13-14 mag in August.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June  1   4 27.46   19 11.1   3.083   2.072     3   12.8   5:29 (257,-15)  
June  8   4 44.47   19 35.8   3.094   2.086     5   12.8   5:32 (255,-13)  

* C/2016 M1 ( PanSTARRS )

It brightened up to 7.7 mag in June in 2018 (June 19, Juan Jose Gonzalez). Now it is fading. But it is still bright as 13.4 mag (May 30, Chris Wyatt). In the Southern Hemisphere, it stays observable for a long time until the comet will fade out. In the Northern Hemisphere, it is not observable for a long time until autumn when the comet fades out down to 16 mag.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June  1   5 45.61  -32 50.5   4.336   3.886    57   13.3  18:26 ( 67, 26)  
June  8   5 53.19  -31 49.6   4.420   3.943    55   13.4  18:25 ( 66, 22)  

* C/2017 M4 ( ATLAS )

Now it is 13.5 mag (May 30, Chris Wyatt). It stays 13-14 mag until summer. It is observable in excellent condition in the Southern Hemisphere. In the Northern Hemisphere, it will be getting lower gradually, and it will be unobservable in July.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June  1  15  9.46  -42 34.2   2.557   3.491   152   13.5  22:30 (  0, 82)  
June  8  14 51.21  -42 59.4   2.626   3.515   146   13.6  21:44 (  0, 82)  

* 29P/Schwassmann-Wachmann 1

Appearing in the morning sky. Now it is bright as 13.7 mag (May 8, Chris Wyatt).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June  1   0 42.06   12  4.6   6.276   5.768    55   13.7   5:29 (226, 30)  
June  8   0 45.74   12 37.5   6.184   5.768    61   13.7   5:32 (219, 33)  

* C/2018 A6 ( Gibbs )

Now it is bright as 13.2 mag (May 30, Thomas Lehmann). It stays 13 mag for a long time in 2019. In the Southern Hemisphere, it is observable in excellent condition. In the Northern Hemisphere, it is not observasble until summer in 2020.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June  1   7 27.27  -52 14.1   2.989   3.042    83   13.8  18:26 ( 48, 48)  
June  8   7 30.26  -52  8.9   3.012   3.035    81   13.8  18:25 ( 48, 45)  

* C/2017 T2 ( PanSTARRS )

It is expected to brighten up to 7 mag in 2020. Now it is not observable. It will appear in the morning sky in July.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June  1   3 59.56   12 33.3   5.292   4.307    12   14.1   5:29 (259, -6)  
June  8   4  5.65   13 18.7   5.206   4.242    16   14.0   5:32 (255, -2)  

* C/2018 Y1 ( Iwamoto )

It approached to Earth down to 0.3 a.u. in mid February, and brightened up to 5.5 mag (Feb. 13, Juan Jose Gonzalez). Now it is fading. It has already faded down to 13.0 mag (Apr. 24, M. Lehky). Now it is not observable. It will appear in the morning sky in July in the Northern Hemisphere, or in August in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June  1   4 36.62   34 53.4   3.052   2.077    12   14.2  18:26 (117,-24)  
June  8   4 38.89   35 15.2   3.123   2.149    13   14.5   5:32 (240,-20)  

* C/2018 W2 ( Africano )

It is expected to brighten up to 10 mag in autumn. Now it is 13.4 mag (May 22, Thomas Lehmann). In the Northern Hemisphere, it stays observable for a long time while the comet is brightening. In the Southern Hemisphere, it it not observable until mid September.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June  1   4  7.33   64 25.8   2.599   1.977    42   14.5   5:29 (210,-32)  
June  8   4 13.07   63 26.9   2.554   1.916    41   14.4   5:32 (210,-29)  

* 123P/West-Hartley

It brightened up to 12-13 mag from winter to spring. Now it is fading. It has already faded down to 14.5 mag (May 23, Katsumi Yoshimoto). It is observable in excellent condition in the Northern Hemisphere. It locates somewhat low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June  1  11 25.53   14 54.8   1.970   2.310    96   14.7  18:48 (180, 40)  
June  8  11 32.63   13  6.9   2.067   2.331    91   14.9  18:28 (180, 42)  

* C/2017 B3 ( LINEAR )

Now it is 14.4 mag (May 8, Chris Wyatt). In the Southern Hemisphere, it is observable for a long time. In the Northern Hemisphere, it will never be observable again.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June  1   0 20.62  -45 11.3   3.955   4.054    88   14.8   5:29 (302, 62)  
June  8   0 24.42  -45  0.9   3.896   4.069    92   14.7   5:32 (304, 67)  

* C/2019 D1 ( Flewelling )

Now it is 14.8 mag (May 10, Katsumi Yoshimoto). It brightens up to 15 mag from May to June, and it will be observable in good condition.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June  1  23  0.40   31 46.4   1.567   1.601    73   15.0   5:29 (193, 22)  
June  8  23 18.29   34 28.2   1.569   1.620    74   15.1   5:32 (189, 20)  

* 68P/Klemola

Now it is 16.4 mag (May 2, Toshihiko Ikemura, Hirohisa Sato). It will brighten rapidly after this. It will be observable at 13.5 mag in good condition in autumn.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June  1  17 44.76   -4 41.4   1.429   2.389   155   15.6   1:10 (180, 60)  
June  8  17 40.68   -4  7.7   1.371   2.347   159   15.4   0:38 (180, 59)  

* (3200) Phaethon

It passes the perihelion on July 2. Then it brightens up to 13 mag, but it is not observable around that time. In the Northern Hemisphere, it will appear in the morning sky at 16 mag in late July. In the Southern Hemisphere, it will be too low to observe.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June  1   5  4.37   22 46.1   1.879   0.882     7   16.0  18:26 (109,-12)  
June  8   5 27.64   22 18.7   1.749   0.746     5   15.4  18:25 (108,-13)  

* C/2016 N6 ( PanSTARRS )

Now it is 14.2 mag (May 7, Thomas Lehmann). It will be fading after this. In the Southern Hemisphere, it stays observable for a long time until it fades out. In the Northern Hemisphere, it will not be observable after this.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June  1   5 57.07  -20 44.5   4.778   4.158    47   15.6  18:26 ( 80, 22)  
June  8   6  1.22  -21 12.7   4.845   4.208    46   15.7  18:25 ( 76, 18)  

* C/2016 R2 ( PanSTARRS )

Now it is 15.9 mag (May 4, Toshihiko Ikemura, Hirohisa Sato). It will be fading slowly after this. It is observable in good condition in the Northern Hemisphere. 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)  
June  1  14 55.88   44 38.2   4.208   4.651   109   15.7  22:17 (180, 11)  
June  8  14 51.14   43 26.7   4.301   4.703   107   15.8  21:45 (180, 12)  

* C/2018 F4 ( PanSTARRS )

Now it is 16.6 mag (May 10, Mount John Observatory, Lake Tekapo). It stays 16 mag for a long time from 2019 to 2020. It is 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)  
June  1  11 13.38  -56 10.6   3.322   3.842   113   16.0  18:35 (  0, 69)  
June  8  11  5.78  -55 29.1   3.359   3.814   109   15.9  18:25 ( 10, 69)  

* C/2015 O1 ( PanSTARRS )

Now it is 16.1 mag (Apr. 27, Toshihiko Ikemura, Hirohisa Sato). It will be fading slowly after this. It will be getting lower gradually after this, and it will be unobservable in June.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June  1   8 44.61   34 21.2   5.970   5.467    55   16.0  18:26 (151, 14)  
June  8   8 45.66   33 35.3   6.108   5.508    49   16.1  18:25 (146, 11)  

* A/2017 U7

Asteroid, but it brightened rapidly. Now it is 16.9 mag (Mar. 27, iTelescope Observatory, Siding Spring). It is 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)  
June  1  22 18.55  -38 21.3   6.098   6.455   106   16.2   5:29 (320, 86)  
June  8  22 14.37  -38 54.7   5.985   6.450   113   16.2   5:11 (  0, 86)  

* 260P/McNaught

Now it is 18.7 mag (May 7, Martin Masek). It will brighten rapidly up to 11.5 mag in autumn. In the Northern Hemisphere, it will be observable in excellent condition. In the Southern Hemisphere, it will be extremely low from autumn to winter.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June  1  23  8.35  -19 26.7   1.485   1.791    89   16.8   5:29 (226, 69)  
June  8  23 23.93  -17 33.4   1.390   1.748    91   16.3   5:32 (215, 69)  

* C/2018 KJ3 ( Lemmon )

Now it is 17.8 mag (Mar. 31, iTelescope Observatory, Siding Spring). It will brighten up to 16.5 mag in June. 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)  
June  1  17 18.51  -39 33.4   2.771   3.739   159   16.4   0:45 (  0, 85)  
June  8  16 58.23  -40 31.2   2.745   3.725   162   16.4  23:50 (  0, 84)  

* (944) Hidalgo

It brightened up to 14 mag from autumn to winter in 2018. Now it is fading. It is observable in excellent condition in the Northern Hemisphere. It locates extremely low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June  1  10 20.02   40 23.2   2.943   2.828    73   16.4  18:26 (172, 14)  
June  8  10 27.88   38  4.8   3.061   2.871    69   16.5  18:25 (167, 16)  

* C/2019 J2 ( Palomar )

Now it is 16.8 mag (May 11, M. Suzuki, B. Lutkenhoner). It will brighten up to 16 mag from June to August, and it will be 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)  
June  1   0 17.32   59  4.8   2.156   1.834    58   16.8   5:29 (197, -8)  
June  8   0 15.62   64 31.2   2.050   1.805    61   16.6   5:32 (191,-11)  

* C/2010 U3 ( Boattini )

Now it is 17.3 mag (May 4, Toshihiko Ikemura, Hirohisa Sato). It stays 16-17 mag for a long time until 2020. It is observable in good condition in the Northern Hemisphere. It is not observable at all in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June  1  10 52.82   66 48.4   8.726   8.464    71   16.8  18:26 (179,-12)  
June  8  10 55.98   65 54.7   8.783   8.467    68   16.9  18:25 (176,-11)  

* 168P/Hergenrother

It has not been observed yet in this apparition. It is expected to brighten up to 12 mag from August to September. It is observable in good condition in the Northern Hemisphere. It will be low around the high light in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June  1   0 28.41   -8 40.7   1.624   1.549    67   17.5   5:29 (240, 48)  
June  8   0 46.56   -5 27.8   1.555   1.513    68   16.9   5:32 (233, 48)  

* 261P/Larson

It has not been observed yet in this apparition. It will be observable at 16 mag in good condition from summer to autumn. It locates somewhat low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June  1   0 49.19   10  1.2   2.423   2.018    54   17.0   5:29 (229, 30)  
June  8   1  3.21   11 42.6   2.365   2.015    57   16.9   5:32 (224, 32)  

* C/2017 K2 ( PanSTARRS )

Now it is 16.6 mag (May 3, Toshihiko Ikemura, Hirohisa Sato). It is expected to be observable at 5-6 mag for a long time from 2022 to 2023. In the Northern Hemisphere, it is not observable at the highlight from 2022 summer to 2023 summer. In the Southern Hemisphere, it stays unobservable for a while. But it will be observable in good condition at the highlight.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June  1  17 51.75   58 38.7  11.384  11.565    97   16.9   1:16 (180, -4)  
June  8  17 47.35   58 43.1  11.334  11.519    97   16.9   0:44 (180, -4)  

* C/2019 K1 ( ATLAS )

Now it is 16.8 mag (May 23, G. Hug). It will brighten up to 14 mag in winter. It stays observable for a long time in the Southern Hemisphere. It is observable only until early August in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June  1  16 52.38  -27 23.7   2.542   3.551   173   17.0   0:18 (180, 82)  
June  8  16 39.64  -28 39.4   2.483   3.492   172   16.9  23:32 (180, 84)  

* 74P/Smirnova-Chernykh

Now it is 16.4 mag (May 7, Toshihiko Ikemura, Hirohisa Sato). It is observable at 17 mag in good condition in 2019. It locates somewhat low in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June  1  15 24.23  -15 29.5   2.914   3.893   162   16.9  22:45 (180, 71)  
June  8  15 20.25  -15 25.1   2.959   3.902   154   17.0  22:14 (180, 70)  

* C/2019 J3 ( ATLAS )

Now it is 17.7 mag (May 16, M. Masek). It will brighten up to 17 mag from June to July, and will be observable in good condition.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June  1  19 32.37  -29 13.0   1.601   2.459   139   17.4   2:58 (180, 84)  
June  8  19  3.85  -27 28.3   1.497   2.441   152   17.3   2:03 (180, 83)  

* 60P/Tsuchinshan 2

It brightened up to 13.2 mag from December to March (Dec. 30, Chris Wyatt). Now it is fading. It has already faded down to 16.6 mag (May 3, Toshihiko Ikemura, Hirohisa Sato). It will be fainter than 18 mag in June.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June  1  11 47.97   -3 19.3   1.736   2.272   108   17.4  19:10 (180, 58)  
June  8  11 55.24   -3 49.2   1.851   2.312   103   17.8  18:50 (180, 59)  

* 186P/Garradd

In the Southern Hemisphere, it is observable at 17.5 mag in good condition from spring to summer. In the Northern Hemisphere, it is not observable at all. It has not been observed since last September.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June  1  16 47.58  -57 15.3   3.524   4.390   144   17.7   0:14 (  0, 68)  
June  8  16 40.77  -57  1.9   3.516   4.391   145   17.7  23:35 (  0, 68)  

* C/2019 F1 ( ATLAS-Africano )

Now it is 17.5 mag (May 3, Toshihiko Ikemura, Hirohisa Sato). It is expected to brighten up to 13.5 mag in 2021, and it will be observable in good condition in the Southern Hemisphere. In the Northern Hemisphere, it is not observable at the highlight.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June  1  13 42.89    7 39.6   6.557   7.235   128   17.7  21:04 (180, 47)  
June  8  13 40.47    7 20.0   6.598   7.190   122   17.7  20:35 (180, 48)  

* P/2012 K3 ( Gibbs )

It has not been observed yet in this apparition. Now it is fainter than 21.5 mag (Mar. 10, Erwin Schwab). It will be observable at 17.5 mag from June to August.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June  1  18 58.81   -9  4.4   1.276   2.172   142   17.9   2:24 (180, 64)  
June  8  18 57.74   -9 26.1   1.222   2.158   149   17.8   1:55 (180, 64)  

* C/2019 J1 ( Lemmon )

Now it is 17.4 mag (May 7, Toshihiko Ikemura, Hirohisa Sato). It will brighten up to 17.5 mag from June to July.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June  1  20 20.58  -23 13.6   1.793   2.545   127   17.8   3:45 (180, 78)  
June  8  20 23.32  -24 39.1   1.750   2.562   134   17.8   3:20 (180, 80)  

* C/2019 JU6 ( ATLAS )

Now it is 17.7 mag (May 14, Catalina Sky Survey). It will be observable at 17.5 mag in excellent condition in the Northern Hemisphere. It locates somewhat low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June  1  20 28.77   26 57.0   1.535   2.047   104   18.0   3:54 (180, 28)  
June  8  19 55.59   29  4.2   1.421   2.048   113   17.9   2:54 (180, 26)  

* (6478) Gault

Main-belt asteroid. But it shows a straight tail like a comet. Now it is 18.1 mag (May 2, Toshihiko Ikemura, Hirohisa Sato). It stays observable in excellent condition until early summer.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June  1  10 34.07    9 30.1   1.970   2.162    86   18.4  18:26 (170, 45)  
June  8  10 43.07    9 33.8   2.039   2.147    81   18.4  18:25 (164, 44)  

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