Weekly Information about Bright Comets (2019 June 22: North)

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 Updated on June 22, 2019
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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/2018 R3 ( Lemmon )

Now it is very bright as 10.3 mag (June 11, 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)  
June 22   7 17.10   50 56.4   2.068   1.310    31   11.8  21:04 (144, 12)  
June 29   7 48.65   46 49.3   2.135   1.332    28   12.0  21:04 (141, 10)

* C/2018 N2 ( ASASSN )

Now it is 13.3 mag (June 14, 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)  
June 22   2 29.61    6 22.7   3.921   3.412    53   12.3   2:59 (269,  9)  
June 29   2 33.25    7 51.2   3.804   3.386    58   12.2   3:02 (271, 16)

* 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 22   7  1.64  -35 51.3   1.675   1.480    61   12.2  21:04 ( 70,-42)  
June 29   7 39.94  -37 46.6   1.678   1.521    63   12.6  21:04 ( 67,-41)

* 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 22   5 18.12   20  4.5   3.109   2.118    10   13.0   2:59 (232,-14)  
June 29   5 34.69   20  8.7   3.113   2.136    13   13.1   3:02 (235,-12)

* (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 22   6 26.06   20 17.7   1.410   0.418     6   14.0  21:04 (130,-17)  
June 29   7  2.91   18 52.8   1.151   0.216     8   13.1  21:04 (128,-16)

* 29P/Schwassmann-Wachmann 1

Appearing in the morning sky. 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)  
June 22   0 52.13   13 38.7   5.985   5.769    72   13.6   2:59 (276, 33)  
June 29   0 54.77   14  6.7   5.881   5.769    78   13.6   3:02 (281, 39)

* 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 22   6  7.56  -30 14.7   4.574   4.056    53   13.6  21:04 ( 84,-52)  
June 29   6 14.32  -29 39.7   4.644   4.113    53   13.7   3:02 (277,-49)

* 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 22   4 18.12   14 48.1   5.005   4.112    25   13.8   2:59 (246, -7)  
June 29   4 24.47   15 32.2   4.891   4.046    30   13.6   3:02 (249, -2)

* C/2018 W2 ( Africano )

Now it is bright as 12.8 mag (June 13, 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)  
June 22   4 22.61   61 49.8   2.424   1.799    41   14.0   2:59 (208, 21)  
June 29   4 26.26   61 10.3   2.338   1.745    43   13.8   3:02 (211, 24)

* 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 22  14 20.17  -43  8.0   2.817   3.567   130   13.8  21:04 (  8, 11)  
June 29  14  7.90  -43  0.1   2.934   3.594   123   13.9  21:04 ( 16, 10)

* 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 22   7 38.78  -52 35.5   3.049   3.024    79   13.8  21:04 ( 47,-40)  
June 29   7 44.12  -53  7.8   3.062   3.021    78   13.8  21:04 ( 47,-43)

* 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. 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 22   0 29.25  -44 56.1   3.778   4.103   101   14.7   2:59 (325, -3)  
June 29   0 30.15  -45  0.9   3.722   4.121   106   14.7   3:02 (330,  0)

* 68P/Klemola

Now it is 15.4 mag (June 13, 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)  
June 22  17 30.88   -3 26.3   1.289   2.266   158   14.9  23:29 (  0, 52)  
June 29  17 25.83   -3 21.4   1.264   2.227   154   14.8  22:56 (  0, 52)

* 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)  
June 22   4 42.81   36  4.4   3.216   2.296    20   15.0   2:59 (226,  2)  
June 29   4 44.28   36 32.0   3.240   2.370    26   15.2   3:02 (230,  7)

* 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)  
June 22   1 23.38    1 26.9   1.431   1.451    70   15.6   2:59 (283, 20)  
June 29   1 42.18    5  6.7   1.377   1.425    71   15.0   3:02 (282, 25)

* 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)  
June 22  23 54.93  -13 18.2   1.213   1.667    96   15.5   2:59 (311, 26)  
June 29   0 10.33  -10 54.6   1.131   1.630    98   15.1   3:02 (312, 30)

* C/2019 D1 ( Flewelling )

Now it is 14.8 mag (June 14, 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)  
June 22  23 51.75   39  1.9   1.576   1.673    77   15.2   2:59 (250, 55)  
June 29   0  7.02   40 54.3   1.579   1.707    78   15.3   3:02 (247, 58)

* 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)  
June 22  11 48.37    9 33.4   2.264   2.375    83   15.3  21:04 ( 72, 39)  
June 29  11 56.87    7 48.2   2.365   2.399    79   15.5  21:04 ( 74, 34)

* 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)  
June 22   6 25.14    4 49.8   2.426   1.507    19   15.6  21:04 (119,-28)  
June 29   6 36.63    1 46.8   2.376   1.478    21   15.4  21:04 (120,-33)

* 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 22  10 56.17  -54 16.0   3.447   3.761   100   15.9  21:04 ( 32,-14)  
June 29  10 53.77  -53 48.3   3.495   3.736    95   15.9  21:04 ( 35,-17)

* 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)  
June 22  14 44.32   40 46.1   4.504   4.808   101   16.0  21:04 (145, 83)  
June 29  14 42.22   39 19.9   4.613   4.860    97   16.1  21:04 (116, 79)

* 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. It is hardly observable in the Northern Hemisphere. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 22  22  3.39  -40  6.8   5.781   6.441   126   16.1   2:59 (347, 13)  
June 29  21 56.56  -40 43.4   5.695   6.437   133   16.0   3:02 (354, 14)

* 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)  
June 22  23 49.91   77  5.5   1.876   1.763    67   16.3   2:59 (192, 44)  
June 29  22 33.20   83 42.9   1.813   1.747    69   16.2   3:02 (183, 41)

* C/2018 KJ3 ( Lemmon )

Now it is 17.2 mag (May 26, 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 22  16 16.57  -41 30.5   2.771   3.698   151   16.4  22:14 (  0, 13)  
June 29  15 56.87  -41 32.7   2.820   3.687   143   16.4  21:27 (  0, 13)

* 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 22   1 30.89   14 56.8   2.247   2.014    63   16.6   2:59 (270, 26)  
June 29   1 44.49   16 28.8   2.188   2.015    66   16.5   3:02 (270, 30)

* 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)  
June 22  16 12.48  -30 58.5   2.421   3.369   154   16.7  22:10 (  0, 24)  
June 29  15 58.99  -31 58.9   2.420   3.311   145   16.6  21:30 (  0, 23)

* C/2017 K2 ( PanSTARRS )

Now it is 16.6 mag (June 6, 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)  
June 22  17 38.21   58 37.5  11.244  11.427    97   16.8  23:36 (180, 66)  
June 29  17 33.67   58 27.4  11.204  11.380    97   16.8  23:04 (180, 67)

* C/2010 U3 ( Boattini )

Now it is 17.3 mag (May 29, 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 22  11  3.85   64  6.5   8.887   8.473    62   16.9  21:04 (148, 44)  
June 29  11  8.43   63 12.7   8.934   8.476    60   16.9  21:04 (146, 41)

* 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 22  17 58.00  -21 57.1   1.399   2.415   178   17.1   0:02 (  0, 33)  
June 29  17 25.34  -18 24.4   1.407   2.402   164   17.0  22:54 (  0, 37)

* 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)  
June 22  15 14.12  -15 23.5   3.084   3.919   140   17.1  21:13 (  0, 40)  
June 29  15 12.14  -15 27.0   3.163   3.928   133   17.2  21:04 (  6, 39)

* 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)  
June 22  23 39.18   -5 54.6   2.602   2.909    97   17.6   2:59 (309, 34)  
June 29  23 45.14   -5 32.5   2.483   2.877   102   17.5   3:02 (314, 38)

* P/2012 K3 ( Gibbs )

It has not been observed yet in this apparition. It was fainter than 21.5 mag in March (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 22  18 52.21  -10 42.8   1.143   2.134   162   17.6   0:55 (  0, 44)  
June 29  18 48.21  -11 37.5   1.120   2.124   167   17.5   0:23 (  0, 43)

* 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)  
June 22  16 28.20  -56  9.0   3.536   4.392   143   17.7  22:27 (  0, -1)  
June 29  16 22.99  -55 31.5   3.563   4.392   140   17.7  21:54 (  0, -1)

* 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)  
June 22  18 27.88   30 37.5   1.297   2.061   125   17.7   0:32 (  0, 86)  
June 29  17 40.28   29 16.2   1.304   2.073   126   17.7  23:07 (  0, 84)

* 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 22  20 25.24  -27 47.8   1.691   2.604   147   17.8   2:27 (  0, 27)  
June 29  20 24.50  -29 26.9   1.678   2.628   153   17.8   1:59 (  0, 26)

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