Weekly Information about Bright Comets (2019 July 6: South)

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Updated on July 7, 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 R3 ( Lemmon )

Now it is very bright as 10.5 mag (June 29, Carlos Labordena). It will be fading after this. It is not observable in the Southern Hemisphere. It is observable only until early July even in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6   8 14.26   42 36.8   2.209   1.362    25   11.2  18:31 (132,-15)  
July 13   8 35.46   38 27.8   2.287   1.398    22   11.7  18:34 (127,-14)  

* C/2018 N2 ( ASASSN )

Now it is 13.2 mag (June 30, Thomas Lehmann). 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)  
July  6   2 36.48    9 21.2   3.683   3.361    63   12.1   5:38 (220, 37)  
July 13   2 39.21   10 53.0   3.557   3.337    69   12.0   5:37 (212, 38)  

* C/2018 W2 ( Africano )

Now it is bright as 11.8 mag (July 4, Thomas Lehmann). It is expected to brighten up to 10 mag in autumn. 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)  
July  6   4 28.95   60 35.9   2.238   1.694    45   12.6   5:38 (206,-17)  
July 13   4 30.48   60  5.9   2.124   1.647    49   12.3   5:37 (204,-15)  

* 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)  
July  6   8 19.86  -39  8.9   1.701   1.566    64   13.0  18:31 ( 61, 31)  
July 13   8 59.95  -39 54.7   1.746   1.616    65   13.5  18:34 ( 61, 33)  

* 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)  
July  6   5 51.02   20  6.3   3.115   2.155    15   13.1   5:38 (248, -4)  
July 13   6  7.06   19 57.5   3.113   2.175    18   13.2   5:37 (247, -2)  

* C/2017 T2 ( PanSTARRS )

It is expected to brighten up to 7 mag in 2020. Appearing in the morning sky.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6   4 30.85   16 16.1   4.768   3.981    35   13.5   5:38 (239, 14)  
July 13   4 37.23   16 60.0   4.636   3.915    40   13.4   5:37 (235, 16)  

* 29P/Schwassmann-Wachmann 1

Now it is bright as 13.0 mag (May 23, Ken-ichi Kadota).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6   0 56.99   14 32.7   5.774   5.770    84   13.5   5:38 (188, 40)  
July 13   0 58.76   14 56.3   5.666   5.770    90   13.5   5:37 (180, 40)  

* 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)  
July  6   6 20.79  -29 12.6   4.707   4.171    52   13.8   5:38 (293, 18)  
July 13   6 26.93  -28 52.9   4.764   4.228    52   13.9   5:37 (291, 22)  

* C/2018 A6 ( Gibbs )

Now it is bright as 13.2 mag (June 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)  
July  6   7 50.10  -53 52.9   3.072   3.019    77   13.8  18:31 ( 43, 31)  
July 13   7 56.65  -54 51.0   3.078   3.018    77   13.8  18:34 ( 41, 28)  

* 168P/Hergenrother

It has not been observed yet in this apparition. Now it is fainter than 18.5 mag (June 9, Martin Masek). 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)  
July  6   2  1.31    8 52.8   1.328   1.403    72   14.4   5:38 (210, 41)  
July 13   2 20.82   12 43.3   1.285   1.385    72   13.9   5:37 (206, 38)  

* C/2017 M4 ( ATLAS )

Now it is 13.1 mag (June 28, Thomas Lehmann). It stays 13-14 mag until summer. It is observable in excellent condition in the Southern Hemisphere. In the Northern Hemisphere, it will be unobservable soon.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6  13 57.84  -42 49.4   3.061   3.623   115   14.0  19:02 (  0, 82)  
July 13  13 49.85  -42 38.8   3.196   3.652   108   14.1  18:34 ( 10, 82)  

* 260P/McNaught

Now it is 16.9 mag (June 9, 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)  
July  6   0 25.62   -8 19.3   1.054   1.594   100   14.7   5:32 (180, 63)  
July 13   0 40.76   -5 31.2   0.982   1.561   102   14.3   5:19 (180, 60)  

* 68P/Klemola

Now it is 14.5 mag (July 3, Thomas Lehmann). 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)  
July  6  17 21.20   -3 28.3   1.250   2.189   149   14.6  22:24 (180, 59)  
July 13  17 17.40   -3 46.9   1.246   2.151   143   14.5  21:53 (180, 59)  

* C/2017 B3 ( LINEAR )

Now it is 14.4 mag (June 10, Martin Masek). In the Southern Hemisphere, it is observable for a long time. It stays low in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6   0 29.96  -45  9.5   3.669   4.140   110   14.7   5:36 (  0, 80)  
July 13   0 28.62  -45 20.8   3.620   4.160   115   14.7   5:07 (  0, 80)  

* C/2019 A9 ( PanSTARRS )

It brightens up to 15 mag from July to September. In the Southern Hemisphere, it becomes observable after late July. It is not observable at all in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6   6 48.64   -1 29.9   2.320   1.456    24   15.3   5:38 (274, -3)  
July 13   7  1.27   -5  2.3   2.260   1.439    27   15.1   5:37 (275,  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 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)  
July  6   4 45.30   37  1.7   3.248   2.445    31   15.4   5:38 (226, -3)  
July 13   4 45.73   37 33.4   3.242   2.519    37   15.6   5:37 (222,  0)  

* C/2019 D1 ( Flewelling )

Now it is 15.5 mag (July 4, Thomas Lehmann). It stays at 15 mag for a while. 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)  
July  6   0 21.07   42 30.8   1.580   1.744    81   15.4   5:27 (180, 12)  
July 13   0 33.73   43 52.0   1.579   1.786    83   15.5   5:12 (180, 11)  

* 123P/West-Hartley

It brightened up to 12-13 mag from winter to spring. Now it is fading. It has already faded down to 15.1 mag (June 5, Thomas Lehmann). It will be getting lower after this. It will be unobservable in August in the Northern Hemisphere, or in September in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6  12  5.70    6  4.3   2.467   2.423    75   15.7  18:31 (151, 45)  
July 13  12 14.83    4 21.7   2.569   2.448    71   15.9  18:34 (143, 44)  

* (3200) Phaethon

It passed the perihelion on July 2. Then it must have brightened up to 13 mag, but it was 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)  
July  6   6 53.94   24 57.5   0.832   0.188     2   24.6   5:38 (252,-19)  
July 13   6  4.22   33 18.5   0.827   0.391    21   15.9   5:37 (236, -9)  

* 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)  
July  6  10 52.74  -53 28.3   3.544   3.711    91   15.9  18:31 ( 43, 57)  
July 13  10 52.91  -53 17.0   3.592   3.688    87   15.9  18:34 ( 46, 53)  

* A/2017 U7

Asteroid, but it brightened rapidly. Now it is 16.3 mag (May 24, ATLAS-MLO, Mauna Loa). It is observable in excellent condition in the Southern Hemisphere. In the Northern Hemisphere, it locates extremely low for a while.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6  21 48.85  -41 18.7   5.623   6.434   139   16.0   2:56 (  0, 84)  
July 13  21 40.35  -41 51.2   5.565   6.430   145   16.0   2:20 (  0, 83)  

* 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)  
July  6   6 18.16  -24  1.6   5.029   4.410    47   16.0   5:38 (288, 16)  
July 13   6 22.26  -24 58.3   5.055   4.461    49   16.1   5:37 (286, 21)  

* C/2019 J2 ( Palomar )

Now it is 16.3 mag (May 23, Ken-ichi Kadota). 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)  
July  6  16 41.67   85 14.6   1.771   1.735    71   16.1  21:20 (180,-30)  
July 13  14 29.05   78 26.2   1.755   1.728    71   16.1  19:02 (180,-23)  

* C/2019 K5 ( Young )

Now it is 16.0 mag (June 27, Steward Observatory, Mt. Lemmon Station). It stays observable in good condition while the comet will be fading slowly after this.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6   1 41.83   10 12.2   2.032   2.043    76   16.1   5:38 (203, 42)  
July 13   1 56.32   10 34.2   1.979   2.051    79   16.1   5:37 (200, 42)  

* C/2016 R2 ( PanSTARRS )

Now it is 16.1 mag (June 5, 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)  
July  6  14 40.96   37 51.2   4.728   4.913    94   16.2  19:45 (180, 17)  
July 13  14 40.49   36 21.4   4.845   4.965    90   16.3  19:17 (180, 19)  

* 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)  
July  6   1 57.87   17 56.8   2.129   2.018    69   16.4   5:38 (205, 33)  
July 13   2 10.96   19 20.3   2.069   2.023    73   16.3   5:37 (201, 33)  

* C/2019 K7 ( Smith )

Now it is 16.6 mag (July 1, D. T. Durig). It stays 15-16 mag for a long time until 2021.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6  21 58.11  -35  4.8   4.460   5.271   139   16.5   3:05 (180, 90)  
July 13  21 50.23  -35  7.5   4.368   5.242   146   16.4   2:30 (  0, 90)  

* C/2018 KJ3 ( Lemmon )

Now it is 17.2 mag (May 26, iTelescope Observatory, Siding Spring). It will be fading slowly after this. 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)  
July  6  15 38.86  -41 20.4   2.890   3.676   134   16.5  20:42 (  0, 84)  
July 13  15 22.95  -40 58.0   2.978   3.667   125   16.5  19:59 (  0, 84)  

* C/2019 K1 ( ATLAS )

Now it is 16.1 mag (June 5, Toshihiko Ikemura, Hirohisa Sato). 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)  
July  6  15 46.15  -32 52.7   2.436   3.252   136   16.6  20:49 (180, 88)  
July 13  15 34.37  -33 40.9   2.467   3.194   127   16.5  20:10 (180, 89)  

* C/2017 K2 ( PanSTARRS )

Now it is 16.7 mag (June 27, Thomas Lehmann). 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)  
July  6  17 29.26   58 12.4  11.166  11.334    96   16.8  22:32 (180, -3)  
July 13  17 25.09   57 52.8  11.132  11.288    96   16.8  22:00 (180, -3)  

* C/2018 A3 ( ATLAS )

Now it is 16.7 mag (May 2, Kunihiro Shima). It will be fading after this. In the Northern Hemisphere, it stays observable in good condition for a long time. In the Southern Hemisphere, it stays extremely low for a long time.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6   4 22.54   48 33.3   4.380   3.661    40   16.8   5:38 (214, -8)  
July 13   4 23.71   48 37.7   4.339   3.690    44   16.9   5:37 (211, -5)  

* C/2019 J3 ( ATLAS )

Now it is 18.0 mag (June 29, Michael Jager). 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)  
July  6  16 55.79  -14 44.3   1.456   2.391   149   17.1  21:57 (180, 69)  
July 13  16 30.58  -11 16.6   1.539   2.382   136   17.2  21:05 (180, 66)  

* 209P/LINEAR

Now it is 16.9 mag (May 29, Toshihiko Ikemura, Hirohisa Sato). It brightens up to 17 mag in July. It is observable in good 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)  
July  6  11 38.32    0 52.7   0.670   1.023    71   17.2  18:31 (139, 47)  
July 13  12  7.08   -7 19.9   0.670   1.058    74   17.2  18:34 (131, 53)  

* 101P/Chernykh

It has not been observed yet in this apparition. It will brighten up to 15.5 mag and it will be observable in good condition in autumn.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6  23 50.51   -5 15.3   2.367   2.845   107   17.3   4:57 (180, 60)  
July 13  23 55.22   -5  3.7   2.255   2.814   113   17.2   4:34 (180, 60)  

* 74P/Smirnova-Chernykh

Now it is 16.4 mag (May 26, 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)  
July  6  15 10.96  -15 33.4   3.250   3.936   126   17.3  20:15 (180, 71)  
July 13  15 10.61  -15 42.9   3.345   3.945   119   17.4  19:47 (180, 71)  

* C/2019 K4 ( Ye )

Now it is 17.7 mag (June 24, D. T. Durig). It will be observable at 17 mag in good condition from August to September.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6   1 35.02   40 54.3   2.432   2.268    68   17.5   5:38 (192, 13)  
July 13   1 35.33   39 46.9   2.325   2.277    74   17.4   5:37 (187, 15)  

* P/2012 K3 ( Gibbs )

It has not been observed yet in this apparition. It was expected to be observable at 17.5 mag from June to August. But actually, it was fainter than 21.5 mag in March (Mar. 10, Erwin Schwab).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6  18 43.83  -12 41.6   1.107   2.115   169   17.5  23:47 (180, 68)  
July 13  18 39.52  -13 53.1   1.106   2.107   166   17.5  23:15 (180, 69)  

* 186P/Garradd

Now it is 17.3 mag (May 26, iTelescope Observatory, Siding Spring). 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.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6  16 18.78  -54 48.4   3.601   4.393   136   17.7  21:23 (  0, 70)  
July 13  16 15.70  -54  1.3   3.649   4.394   131   17.7  20:52 (  0, 71)  

* 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. It is faint as 19.0 mag recently (May 29, Toshihiko Ikemura, Hirohisa Sato).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6  16 56.98   26 37.2   1.357   2.088   122   17.9  21:57 (180, 29)  
July 13  16 21.13   23 15.0   1.451   2.107   116   18.0  20:55 (180, 32)  

* 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)  
July  6  20 22.80  -31  5.4   1.677   2.653   159   17.9   1:30 (180, 86)  
July 13  20 20.34  -32 40.1   1.689   2.681   164   17.9   1:00 (180, 88)  

* 215P/NEAT

In the Southern Hemisphere, it is observable at 18 mag in good condition from July to August. It locates low in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  6  20 34.08  -31 45.9   2.682   3.639   156   17.9   1:41 (180, 87)  
July 13  20 29.86  -32 15.8   2.653   3.636   162   17.9   1:10 (180, 87)  

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