Weekly Information about Bright Comets (2019 Oct. 12: South)

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Updated on October 11, 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 W2 ( Africano )

Now it is bright as 8.7 mag (Oct. 2, Willian Souza). It will be fading after this. Moving southwards very rapidly now. In the Southern Hemisphere, it is observable in excellent condition after this. In the Northern Hemisphere, it will be unobservable in November.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 12  22 28.68  -21 50.4   0.688   1.543   131    9.5  21:04 (180, 78)  
Oct. 19  22  5.36  -30 18.7   0.862   1.579   116   10.2  20:14 (180, 86)  

* C/2018 N2 ( ASASSN )

Now it is 11.6 mag (Oct. 4, Carlos Labordena). It stays bright as 11 mag until winter. It stays observable in good condition for a long time in the Northern Hemisphere. In the Southern Hemisphere, it locates low, and it will be unobservable in early December.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 12   1 30.39   34 53.9   2.224   3.138   151   11.2   0:12 (180, 20)  
Oct. 19   1 14.08   36 17.7   2.212   3.133   153   11.2  23:22 (180, 18)  

* C/2017 T2 ( PanSTARRS )

Now it is 12.9 mag (Oct. 2, Chris Wyatt). It is expected to brighten up to 8 mag in 2020. It stays observable in good condition for a long time in the Northern Hemisphere. In the Southern Hemisphere, it will be getting lower gradually, and it will be unobservable in early December.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 12   5 39.58   29 52.5   2.524   3.048   112   11.6   3:55 (186, 25)  
Oct. 19   5 39.77   31 36.4   2.367   2.981   119   11.4   3:44 (182, 23)  

* 260P/McNaught

Now it is 11.7 mag (Oct. 5, Carlos Labordena). It stays 12 mag until November. It is observable in excellent condition in the Northern Hemisphere. It stays locating extremely low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 12   2 51.11   44 10.9   0.566   1.462   136   11.6   1:32 (180, 11)  
Oct. 19   2 48.40   46 41.8   0.576   1.483   139   11.8   1:02 (180,  8)  

* P/2008 Y12 = P/2014 K3 ( SOHO )

It was observed in the SOHO spacecraft images in 2008 and 2014. It will approach to Sun down to 0.067 a.u. on Oct. 9. It was observable in the evening low sky until late September. But it was not recovered, fainter than 18.5 mag (Sept. 30, Michael Jager and Gerald Rhemann).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 12  12 58.20   -9  3.7   1.137   0.149     2   12.0   3:55 (292,-15)  
Oct. 19  13 48.00  -18 37.4   1.367   0.419     9   16.9  19:46 ( 59, -9)  

* 29P/Schwassmann-Wachmann 1

Now it is 14.6 mag (Oct. 3, Chris Wyatt).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 12   0 39.84   15 18.2   4.792   5.776   169   13.1  23:17 (180, 40)  
Oct. 19   0 36.71   14 59.3   4.807   5.776   165   13.1  22:46 (180, 40)  

* 168P/Hergenrother

It has not been observed yet in this apparition. Now it is fainter than 21.5 mag (Aug. 4, Erwin Schwab). It was expected to brighten up to 12 mag from August to September. But actually, it must be much fainter than expected. It is observable in good 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)  
Oct. 12   6 54.23   51 34.6   1.079   1.563    97   13.2   3:55 (195,  1)  
Oct. 19   7  9.42   53 16.4   1.075   1.602   101   13.6   3:44 (194, -1)  

* 68P/Klemola

Now it is 13.3 mag (Oct. 1, Chris Wyatt). It is observable at 13.5 mag in good condition in autumn.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 12  18 44.08  -14 56.3   1.650   1.817    82   13.8  19:38 (115, 54)  
Oct. 19  19  0.03  -15 26.3   1.698   1.807    79   13.8  19:46 (110, 50)  

* C/2018 A6 ( Gibbs )

Now it is 13.6 mag (Oct. 3, Chris Wyatt). It stays 13-14 mag for a long time in 2019. In the Southern Hemisphere, it is observable in good 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)  
Oct. 12  11 49.83  -84  0.9   3.185   3.120    77   14.1   3:55 (353, 34)  
Oct. 19  14  2.13  -85 52.7   3.221   3.137    76   14.2  19:46 (  4, 34)  

* 78P/Gehrels 2

Now it is 14.7 mag (Sept. 6, Ken-ichi Kadota). It is observable at 14 mag in good condition in autumn.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 12   8 54.80   11 33.4   2.763   2.516    65   14.2   3:55 (239, 20)  
Oct. 19   9  3.50   10 42.9   2.709   2.547    70   14.3   3:44 (238, 22)  

* C/2016 M1 ( PanSTARRS )

It brightened up to 7.7 mag in June in 2018 (June 19, Juan Jose Gonzalez). Now it is fading. It has already faded down to 14.2 mag (Sept. 10, Thomas Lehmann). In the Southern Hemisphere, it stays observable for a long time until the comet will fade out. In the Northern Hemisphere, it is appearing in the morning sky, but it stays low for a while.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 12   7  3.19  -32 23.2   4.922   4.970    86   14.6   3:55 (271, 67)  
Oct. 19   7  1.31  -32 54.7   4.905   5.027    91   14.7   3:44 (270, 71)  

* C/2019 A9 ( PanSTARRS )

It brightened rapidly, and brightened up to 10.8 mag in summer (Aug. 25, Thomas Lehmann). Now it is fading. But it is still bright as 13.6 mag (Sept. 26, iTelescope Observatory, Siding Spring). In the Southern Hemisphere, it stays observable in the low sky until it becomes fainter than 18 mag in winter. It is not observable at all in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 12  12 54.01  -61 16.6   2.173   1.784    54   14.7   3:55 (332, 20)  
Oct. 19  13 42.40  -62 15.5   2.267   1.841    52   15.2  19:46 ( 26, 19)  

* C/2017 B3 ( LINEAR )

Now it is 14.5 mag (Oct. 3, Chris Wyatt). 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)  
Oct. 12  23  4.83  -40 54.5   3.836   4.477   124   14.7  21:42 (  0, 84)  
Oct. 19  23  0.22  -39 38.9   3.934   4.506   119   14.8  21:10 (  0, 86)  

* 101P/Chernykh

Now it is 16.1 mag (Sept. 25, Ken-ichi Kadota). It stays 15.5 mag until December, and it is observable in good condition.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 12  23 46.50   -9 36.6   1.540   2.476   153   15.7  22:23 (180, 65)  
Oct. 19  23 44.25   -9 47.9   1.564   2.458   146   15.7  21:54 (180, 65)  

* C/2019 K1 ( ATLAS )

Now it is 17.5 mag (Sept. 3, A. C. Gilmore, P. M. Kilmartin). It is predicted to brighten up to 14 mag in winter. But actually, it is fainter than this ephemeris recently. It stays observable for a long time in the Southern Hemisphere, although it becomes low in November. In the Northern Hemisphere, it is not observable for a long time until August in 2020.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 12  15  7.80  -45 18.1   3.077   2.494    46   15.9  19:38 ( 51, 25)  
Oct. 19  15 13.72  -46 44.7   3.083   2.447    42   15.8  19:46 ( 47, 22)  

* C/2018 F4 ( PanSTARRS )

Now it is 15.0 mag (July 21, Taras Prystavski). It stays 16 mag for a long time from 2019 to 2020. It stays observable for a long time 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)  
Oct. 12  12  0.92  -65 15.6   3.877   3.475    59   15.9   3:55 (333, 27)  
Oct. 19  12 10.41  -67 15.2   3.869   3.466    59   15.8   3:44 (334, 28)  

* 114P/Wiseman-Skiff

Now it is 17.6 mag (Sept. 26, Toshihiko Ikemura, Hirohisa Sato). It will brighten very rapidly, and it will brighten up to 14 mag in winter. It is observable in excellent condition in the Northern Hemisphere. It locates low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 12   2 24.53   46 52.6   0.976   1.836   136   16.2   1:06 (180,  8)  
Oct. 19   2 23.40   47  9.1   0.916   1.803   141   15.9   0:37 (180,  8)  

* 261P/Larson

Now it is 16.0 mag (Oct. 4, Toshihiko Ikemura, Hirohisa Sato). It is 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)  
Oct. 12   3 47.48   29 16.2   1.370   2.202   136   16.1   2:28 (180, 26)  
Oct. 19   3 44.96   29 15.8   1.343   2.224   143   16.1   1:58 (180, 26)  

* C/2018 DO4 ( Lemmon )

Now it is 16.0 mag (Sept. 8, Roberto Haver). It is observable at 16 mag in good condition from October to November.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 12   5  5.11   15 46.4   1.805   2.474   121   16.2   3:46 (180, 39)  
Oct. 19   4 42.59   13 30.2   1.699   2.492   133   16.1   2:56 (180, 41)  

* C/2019 K5 ( Young )

Now it is 16.3 mag (Sept. 30, Hirohisa Sato). 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)  
Oct. 12   3 33.63    2 36.3   1.547   2.421   143   16.1   2:14 (180, 52)  
Oct. 19   3 31.88    1 30.9   1.555   2.465   149   16.2   1:45 (180, 53)  

* A/2017 U7

It looks cometary on the LCO (CTIO) image on Aug. 21. Now it is 16.2 mag (Oct. 2, 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)  
Oct. 12  19 53.83  -40  5.4   6.268   6.421    94   16.2  19:38 ( 64, 76)  
Oct. 19  19 50.65  -39 29.6   6.393   6.422    87   16.3  19:46 ( 70, 69)  

* C/2019 K7 ( Smith )

Now it is 15.8 mag (Oct. 5, Toshihiko Ikemura, Hirohisa Sato). 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)  
Oct. 12  20  6.75  -27 47.3   4.637   4.905    99   16.2  19:38 (119, 76)  
Oct. 19  20  4.10  -26 50.1   4.737   4.883    92   16.3  19:46 (107, 69)  

* 2I/2019 Q4 ( Borisov )

Now it is 16.4 mag (Oct. 4, Toshihiko Ikemura, Hirohisa Sato). The orbit is extremely hyperbolic with e=3.3. It is the first interstellar comet in history. It brightens up to 15 mag in December. In the Northern Hemisphere, it stays observable in good condition until early December. Then it will be getting lower, and it will be unobservable in mid January. In the Southern Hemisphere, it is not observable for a while. But it will appear in the morning sky in late October, then it will be observable in excellent condition.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 12   9 46.71   18 23.4   2.795   2.377    55   16.5   3:55 (242,  6)  
Oct. 19   9 59.53   14 59.4   2.660   2.299    58   16.2   3:44 (244,  9)  

* 155P/Shoemaker 3

Now it is 16.7 mag (Oct. 9, Toshihiko Ikemura, Hirohisa Sato). It brightens rapidly, and it will be observable at 15 mag in good condition in winter. It locates somewhat low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 12   8 29.35   18 38.1   1.864   1.840    73   16.5   3:55 (229, 19)  
Oct. 19   8 47.13   17 56.6   1.796   1.826    75   16.3   3:44 (229, 20)  

* C/2017 K2 ( PanSTARRS )

Now it is 16.2 mag (Oct. 4, 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 high light 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 high light.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 12  17 11.49   49 43.3  10.847  10.676    77   16.5  19:38 (147, -9)  
Oct. 19  17 13.62   49  4.9  10.825  10.629    76   16.4  19:46 (142,-12)  

* 160P/LINEAR

Now it is 15.1 mag (Oct. 5, Toshihiko Ikemura, Hirohisa Sato). It is brighter than this ephemeris recently. It stays at 15-16 mag until December. It is observable 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)  
Oct. 12  19 21.31  -26 15.7   1.556   1.850    90   16.5  19:38 (106, 67)  
Oct. 19  19 34.15  -24 38.1   1.606   1.834    86   16.5  19:46 (104, 62)  

* (3200) Phaethon

Now it is 16.7 mag (Aug. 9. Grorudalen Optical Observatory). 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 stays observable in excellent condition until December when it becomes fainter than 18 mag. In the Southern Hemisphere, it stays locating low.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 12   2 16.17   52 29.9   0.923   1.758   132   16.5   0:59 (180,  2)  
Oct. 19   1 43.43   50  4.6   0.941   1.818   139   16.5  23:50 (180,  5)  

* P/2019 R1 ( Boattini )

First return of a new periodic comet which brightened up to 16.5 mag in 2009. Now it is 16.2 mag (Sept. 11, Ken-ichi Kadota). It stays 16.5 mag until October. It is observable in good condition in the Northern Hemisphere. It locates low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 12   9  5.97   14 32.3   1.458   1.351    63   16.8   3:55 (238, 16)  
Oct. 19   9 24.40   12 16.4   1.459   1.384    65   16.9   3:44 (240, 18)  

* C/2018 A3 ( ATLAS )

Now it is 17.2 mag (Oct. 5, Toshihiko Ikemura, Hirohisa Sato). 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)  
Oct. 12   2 51.09   48  3.4   3.384   4.134   133   16.8   1:33 (180,  7)  
Oct. 19   2 35.22   46 54.0   3.355   4.173   140   16.8   0:49 (180,  8)  

* C/2019 N1 ( ATLAS )

Now it is 16.7 mag (Oct. 4, Toshihiko Ikemura, Hirohisa Sato). It will brighten up to 10.5 mag from 2020 December to 2021 January. In the Northern Hemisphere, it stays observable in good condition while the comet will be brightening gradually, but it is not observable at the high light. In the Southern Hemisphere, it is not observable for a long time, but it will be observable in good condition after the high light.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 12  16 26.08   69 59.6   4.989   4.986    84   17.0  19:38 (159,-26)  
Oct. 19  16 30.96   68 35.8   4.923   4.924    84   16.9  19:46 (156,-28)  

* C/2015 O1 ( PanSTARRS )

Fading. Now it is 16.8 mag (Oct. 9, Toshihiko Ikemura, Hirohisa Sato). It stays 17 mag from autumn to winter. It is observable in good condition in the Northern Hemisphere. It locates low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 12   9 20.80   24 24.5   6.654   6.271    63   16.9   3:55 (234,  7)  
Oct. 19   9 20.78   24 11.4   6.582   6.315    70   16.9   3:44 (231, 10)  

* C/2010 U3 ( Boattini )

It stays 16-17 mag for a long time until 2020. It is observable in good condition in the Northern Hemisphere. It is hardly observable in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 12  12 36.46   52 47.5   9.003   8.552    60   16.9   3:55 (227,-39)  
Oct. 19  12 42.25   52 27.1   8.963   8.558    63   16.9   3:44 (227,-37)  

* C/2016 N6 ( PanSTARRS )

Fading now. Now it is 16.1 mag (Sept. 23, iTelescope Observatory, Siding Spring). 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)  
Oct. 12   6 39.97  -44 43.3   5.040   5.133    89   17.0   3:55 (307, 71)  
Oct. 19   6 35.96  -46 28.8   5.044   5.185    92   17.0   3:44 (318, 73)  

* C/2019 K4 ( Ye )

Now it is 16.0 mag (Sept. 25, Toshihiko Ikemura, Hirohisa Sato). It will be fading after this, and it will be fainter than 18 mag in November.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 12  23 25.06   -9  9.4   1.709   2.620   149   17.0  22:01 (180, 64)  
Oct. 19  23 15.38  -13  7.5   1.827   2.660   138   17.3  21:25 (180, 68)  

* 384P/2019 O1 ( Kowalski )

First return of a new periodic comet which brightened up to 18 mag in 2014. Now it is 17.3 mag (Oct. 5, Toshihiko Ikemura, Hirohisa Sato). It stays 17 mag until November. It is observable in good 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)  
Oct. 12   6  7.88   40 34.3   0.297   1.116   105   17.1   3:55 (190, 14)  
Oct. 19   6 43.73   42 10.7   0.311   1.121   105   17.1   3:44 (193, 11)  

* 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 17.9 mag (Oct. 5, Toshihiko Ikemura, Hirohisa Sato).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 12   2 50.41   42 41.9   2.673   3.477   137   17.3   1:32 (180, 12)  
Oct. 19   2 31.25   41 48.0   2.683   3.549   145   17.4   0:46 (180, 13)  

* C/2018 L2 ( ATLAS )

It brightened up to 11 mag in late 2018. Now it is 17.9 mag (Oct. 5, Toshihiko Ikemura, Hirohisa Sato). It will be fainter than 18 mag in November. 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)  
Oct. 12   3 38.48   48  7.2   3.348   4.039   127   17.4   2:20 (180,  7)  
Oct. 19   3 30.89   47 24.7   3.340   4.103   134   17.5   1:45 (180,  7)  

* C/2018 U1 ( Lemmon )

Now it is 17.4 mag (Oct. 4, Toshihiko Ikemura, Hirohisa Sato). It will stay at 14 mag for a long time from 2021 to 2022. In the Northern Hemisphere, it stays observable in good condition while brightening gradually, although it becomes low in December and January. In the Southern Hemisphere, it locates extremely low now, and it will be unobservable soon.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 12  18 21.55   39 44.3   7.475   7.471    85   17.5  19:38 (150,  7)  
Oct. 19  18 21.99   38 35.8   7.498   7.436    82   17.4  19:46 (144,  4)  

* C/2019 L3 ( ATLAS )

Now it is 17.6 mag (Sept. 26, Toshihiko Ikemura, Hirohisa Sato). It will brighten up to 12 mag in winter in 2022.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 12  22  6.54   46 15.2   7.050   7.667   125   17.6  20:44 (180,  9)  
Oct. 19  22  4.38   45 45.9   7.035   7.622   122   17.6  20:14 (180,  9)  

* 65P/Gunn

Now it is 18.8 mag (Sept. 27, M. Jaeger, E. Prosperi, S. Prosperi). It is fainter than this ephemeris recently.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 12   2 44.60   10 31.5   3.237   4.167   155   17.6   1:25 (180, 44)  
Oct. 19   2 40.29   10 17.1   3.216   4.181   163   17.6   0:54 (180, 45)  

* 173P/Mueller 5

Now it is 17.9 mag (Oct. 8, ATLAS-MLO, Mauna Loa). It is observable at 17-18 mag for a long time from late 2019 to early 2021.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 12   3 27.13    1 39.3   4.396   5.242   144   17.7   2:08 (180, 53)  
Oct. 19   3 24.46    1 23.2   4.334   5.228   151   17.7   1:38 (180, 54)  

* 289P/Blanpain

Now it is 18.9 mag (Oct. 3, Observatoire Chante-Perdrix, Dauban). It will approaches to Earth down to 0.09 a.u. in early January. It will be obesrvable in excellent condition in the Northern Hemisphere. If it is as bright as in 2003, it will be 17.5 mag at best. But actually, it is brighter recently than in 2003. If it shows cometary activity, it may brighten up to 13.5 mag. In the Southern Hemisphere, it will not be observable at the high light.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 12  22 48.15  -24 40.3   0.463   1.360   133   18.4  21:25 (180, 80)  
Oct. 19  22 38.04  -25  0.7   0.438   1.298   125   18.0  20:47 (180, 80)  

* 76P/West-Kohoutek-Ikemura

Now it is 18.0 mag (Oct. 9, Toshihiko Ikemura, Hirohisa Sato). It was exptected to brighten up to 16.5 mag from October to December. But actually, it is fainter than originally expected. It seems to brighten up to 18 mag at best. It is observable in good condition in the Northern Hemisphere. It locates low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 12   7 43.68   16 15.5   1.388   1.611    83   18.3   3:55 (221, 28)  
Oct. 19   8  1.09   17 51.0   1.325   1.606    86   18.1   3:44 (220, 26)  

* 2019 LD2

Now it is bright as 17.9 mag (Aug. 23, Hidetaka Sato). Hidetaka Sato reported it looks cometary with coma. It will be getting lower gradually after this.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 12  18  7.52  -12 38.7   4.778   4.604    74   19.8  19:38 (109, 45)  
Oct. 19  18 12.37  -12 52.9   4.874   4.602    68   19.9  19:46 (103, 39)  

* 200P/Larsen

Now it is very faint as 19.8 mag (Sept. 25, Toshihiko Ikemura, Hirohisa Sato). It brightened up to 15.5 mag in 1997, and 17 mag in 2008, however, it is much fainter in this apparition.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 12   1 22.67   18 25.3   2.340   3.323   168   20.1   0:04 (180, 36)  
Oct. 19   1 18.80   17 41.8   2.339   3.328   171   20.1  23:28 (180, 37)  

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