Weekly Information about Bright Comets (2020 Jan. 11: North)

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 Updated on January 11, 2020
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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/2017 T2 ( PanSTARRS )

Now it is 9.6 mag (Jan. 5, Juan Jose Gonzalez). It brightens up to 8 mag in spring, and it is observable in good condition in the Northern Hemisphere. In the Southern Hemisphere, it is not observable until July. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan. 11   2 56.43   56 28.1   1.541   2.210   120    9.2  19:35 (180, 68)  
Jan. 18   2 39.55   57  2.8   1.565   2.151   113    9.1  18:51 (180, 68)

* C/2018 N2 ( ASASSN )

Now it is 11.5 mag (Dec. 27, Juan Jose Gonzalez). It stays bright as 12-13 mag until summer. But it becomes low in spring. In the Southern Hemisphere, it will never be observable again. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan. 11  23 29.80   40 17.8   3.127   3.180    84   12.0  18:36 (112, 61)  
Jan. 18  23 31.22   40 50.7   3.228   3.194    79   12.1  18:42 (113, 55)

* 29P/Schwassmann-Wachmann 1

Now it is 14.5 mag (Dec. 27, Toshihiko Ikemura, Hirohisa Sato). 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan. 11   0 32.15   12 59.4   5.827   5.785    82   13.5  18:36 ( 46, 61)  
Jan. 18   0 35.03   13  8.8   5.939   5.786    76   13.6  18:42 ( 57, 56)

* C/2018 F4 ( PanSTARRS )

Now it is bright as 13.8 mag (Dec. 28, Chris Wyatt). It stays 14 mag until spring. It stays observable for a long time in the Southern Hemisphere. It is not observable until August in the Northern Hemisphere. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan. 11  23 43.78  -78 48.1   3.781   3.458    63   14.0  18:36 (  7,-25)  
Jan. 18   0  7.60  -75 50.6   3.792   3.465    63   14.1  18:42 (  9,-23)

* C/2019 Y1 ( ATLAS )

Bright new comet. Now it is 14.8 mag (Dec. 30, Hidetaka Sato). It approaches to Sun down to 0.84 a.u. in March, then it brightens up to 12 mag. In the Northern Hemisphere, it stays observable for a long time, although it becomes extremely low in March. In the Southern Hemisphere, it is observable only until late January. It seems to be a fragment of C/1988 A1 (Liller), like C/1996 Q1 (Tabur) and C/2015 F3 (SWAN). 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan. 11  23 39.45  -21 44.2   1.662   1.418    58   14.6  18:36 ( 35, 25)  
Jan. 18  23 40.19  -16 28.0   1.664   1.328    52   14.3  18:42 ( 46, 25)

* C/2019 K1 ( ATLAS )

In the Southern Hemisphere, it is observable at 14.5 mag from winter to spring. In the Northern Hemisphere, it is not observable until August when it fades down to 17 mag. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan. 11  19  8.41  -72 25.3   2.531   2.051    50   14.6   5:38 (339,-34)  
Jan. 18  20 11.60  -73 54.1   2.467   2.037    53   14.6  18:42 ( 20,-34)

* 114P/Wiseman-Skiff

Now it is 14.1 mag (Dec. 28, Toshihiko Ikemura, Hirohisa Sato). In the Northern Hemisphere, it is observable at 14 mag in excellent condition in winter. It locates low in the Southern Hemisphere. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan. 11   3  2.46   22 46.3   0.843   1.580   119   14.6  19:42 (  0, 78)  
Jan. 18   3 16.24   20 53.6   0.887   1.580   115   14.7  19:29 (  0, 76)

* C/2018 W2 ( Africano )

It brightened up to 8.3 mag in September (Sept. 20, Maik Meyer). Now it is fading. It has already faded down to 14.9 mag (Dec. 28, Chris Wyatt). In the Southern Hemisphere, it stays observable for a long time after this. In the Northern Hemisphere, it will never be observable again. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan. 11  22 11.99  -46 41.9   2.902   2.262    41   14.7  18:36 ( 35, -6)  
Jan. 18  22 20.02  -47  2.6   3.008   2.330    39   15.0  18:42 ( 38, -9)

* 68P/Klemola

Now it is 15.1 mag (Dec. 27, Toshihiko Ikemura, Hirohisa Sato). Fading slowly. It is already unobservable in the Southern Hemisphre. It will be unobservable in early March also in the Northern Hemisphere. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan. 11  22 37.53   -9 27.5   2.426   1.905    47   15.0  18:36 ( 56, 26)  
Jan. 18  22 54.95   -8 12.4   2.498   1.929    44   15.1  18:42 ( 60, 24)

* C/2018 A6 ( Gibbs )

Now it is 14.6 mag (Dec. 28, Chris Wyatt). It will be fading slowly after this. In the Southern Hemisphere, it becomes low from February to March, but it stays observable for a long time. 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)  
Jan. 11  22 20.42  -55 54.0   4.007   3.407    46   15.2  18:36 ( 28,-12)  
Jan. 18  22 29.27  -53 38.6   4.076   3.436    43   15.3  18:42 ( 32,-13)

* 2I/2019 Q4 ( Borisov )

Now it is 14.3 mag (Dec. 27, Shigeki Murakami). The orbit is extremely hyperbolic with e=3.35. It is the first interstellar comet in history. It stays 15 mag until January. In the Northern Hemisphere, it will be unobservable in mid January. In the Southern Hemisphere, it is observable in excellent condition. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan. 11  12 20.06  -42 58.6   1.962   2.140    86   15.3   5:01 (  0, 12)  
Jan. 18  12 29.28  -47 24.2   1.991   2.198    88   15.4   4:43 (  0,  8)

* 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 14.7 mag (Dec. 31, Toshihiko Ikemura, Hirohisa Sato). In the Southern Hemisphere, it stays observable for a long time until the comet will fade out. In the Northern Hemisphere, it stays low for a while. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan. 11   5 54.06  -31 21.1   5.116   5.703   122   15.3  22:32 (  0, 24)  
Jan. 18   5 48.62  -30 19.6   5.198   5.758   120   15.4  21:59 (  0, 25)

* 246P/NEAT

Now it is 16.0 mag (Jan. 1, Toshihiko Ikemura, Hirohisa Sato). It will brighten up to 13.5-14 mag from 2020 to 2021. It stays observable in good condition for a long time after this until 2020 summer. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan. 11  13  7.18   11 41.3   3.243   3.528    98   15.6   5:38 (354, 66)  
Jan. 18  13 10.86   11 51.9   3.129   3.510   104   15.4   5:24 (  0, 67)

* C/2017 B3 ( LINEAR )

Now it is 14.8 mag (Dec. 28, Chris Wyatt). Fading slowly. It will be unobservable soon. It will appear in the morning sky in April in the Southern Hemisphere, or in June in the Northern Hemisphere. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan. 11  23  9.69  -22 59.0   5.441   4.887    51   15.5  18:36 ( 41, 20)  
Jan. 18  23 13.80  -21 42.3   5.556   4.921    45   15.6  18:42 ( 47, 17)

* 160P/LINEAR

Now it is 14.8 mag (Dec. 23, Toshihiko Ikemura, Hirohisa Sato). It will fade out rapidly after this, and it will be fainter than 18 mag in March. In the Southern Hemisphere, it is already unobservable. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan. 11  22 36.91   -1 34.2   2.283   1.825    50   15.6  18:36 ( 63, 31)  
Jan. 18  22 52.76    0 33.8   2.345   1.839    48   15.8  18:42 ( 68, 29)

* 155P/Shoemaker 3

Now it is 15.6 mag (Dec. 27, Toshihiko Ikemura, Hirohisa Sato). It will fade out rapidly after this, and it will be fainter than 18 mag in March. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan. 11  11 22.59   11 49.7   1.183   1.905   122   15.6   4:04 (  0, 67)  
Jan. 18  11 27.09   12  7.8   1.154   1.931   128   15.7   3:41 (  0, 67)

* 78P/Gehrels 2

Now it is 15.6 mag (Dec. 28, Toshihiko Ikemura, Hirohisa Sato). It will be fading gradually after this. It will be fainter than 18 mag in April. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan. 11   9 31.42    5 30.5   2.064   2.928   145   15.6   2:13 (  0, 60)  
Jan. 18   9 26.74    5 46.3   2.047   2.960   153   15.7   1:41 (  0, 61)

* 289P/Blanpain

It approaches to Earth down to 0.09 a.u. in early January, and it was expected to brighten up to 15.5 mag. But actually, it is very faint as 18.0 mag (Dec. 29, Michael Jager). Michael Jager reported it has a faint coma with a diameter of 50-60 arcsec. It is obesrvable in excellent condition in the Northern Hemisphere. In the Southern Hemisphere, it is not observable until mid February. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan. 11   0 45.14   53 43.8   0.091   1.006   101   15.9  18:36 (156, 67)  
Jan. 18   4 22.98   71 12.1   0.102   1.040   121   15.6  20:57 (180, 54)

* C/2019 N1 ( ATLAS )

Now it is 15.6 mag (Jan. 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)  
Jan. 11  17 59.68   60 26.9   4.149   4.167    84   15.8   5:38 (217, 37)  
Jan. 18  18  7.23   60 43.7   4.080   4.103    84   15.7   5:38 (217, 39)

* 260P/McNaught

It brightened up to 11.4 mag in autumn (Nov. 10, Carlos Labordena). Now it is fading. It has already faded down to 14.8 mag (Dec. 28, Chris Wyatt). 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)  
Jan. 11   3  1.01   42 23.1   1.225   1.933   121   16.0  19:41 (180, 83)  
Jan. 18   3 11.80   41 33.2   1.324   1.980   117   16.5  19:24 (180, 83)

* C/2017 K2 ( PanSTARRS )

Now it is 15.3 mag (Jan. 5, 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)  
Jan. 11  17 54.84   45 26.2  10.336  10.051    70   16.1   5:38 (235, 34)  
Jan. 18  17 58.44   45 32.7  10.271  10.002    71   16.1   5:38 (236, 38)

* C/2017 M4 ( ATLAS )

It will be fading slowly after this. In the Southern Hemisphere, it stays observable in good condition for a long time. It will never be observable after this in the Northern Hemisphere. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan. 11  14 32.47  -64 16.6   4.991   4.631    63   16.1   5:38 (350,-11)  
Jan. 18  14 30.61  -65 58.2   4.959   4.674    67   16.2   5:38 (353,-12)

* 101P/Chernykh

Now it is 15.4 mag (Dec. 23, 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)  
Jan. 11   0 41.06   -1  5.0   2.323   2.345    79   16.3  18:36 ( 30, 50)  
Jan. 18   0 51.30    0 13.1   2.401   2.345    74   16.3  18:42 ( 39, 48)

* C/2019 F1 ( ATLAS-Africano )

Now it is 17.0 mag (Jan. 3, Toshihiko Ikemura, Hirohisa Sato). It will brighten up to 13 mag in 2021. In 2020, it is observable at 15 mag in good condition from spring to summer. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan. 11  14 53.39  -12 33.2   6.149   5.808    65   16.6   5:38 (325, 35)  
Jan. 18  14 56.08  -13  7.8   5.998   5.764    71   16.5   5:38 (332, 37)

* C/2010 U3 ( Boattini )

Now it is 17.5 mag (Dec. 28, 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. In the Southern Hemisphere, it is observable in the extremely low sky only in 2021 spring. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan. 11  13 29.59   53  8.7   8.314   8.652   106   16.8   5:38 (195, 71)  
Jan. 18  13 30.54   53 31.4   8.270   8.661   110   16.8   5:38 (183, 72)

* C/2019 F2 ( ATLAS )

Fading. It is observable at 17 mag in good condition in spring. But it will be fainter than 18 mag in June. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan. 11  16 26.68   -8 43.8   3.187   2.588    45   16.8   5:38 (301, 24)  
Jan. 18  16 39.05   -8 35.3   3.162   2.625    49   16.9   5:38 (304, 27)

* 88P/Howell

Now it is 18.2 mag (Jan. 1, Toshihiko Ikemura, Hirohisa Sato). It will brighten very rapidly after this. It will brighten up to 8-9 mag from summer to autumn. It will be observable in excellent condition in the Southern Hemisphere. It locates very low around the high light in the Northern Hemisphere. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan. 11  13 17.80   -3 53.5   2.564   2.754    90   17.2   5:38 (352, 51)  
Jan. 18  13 23.81   -4 23.2   2.425   2.711    96   17.0   5:37 (  0, 51)

* C/2015 O1 ( PanSTARRS )

Fading. Now it is 17.6 mag (Dec. 27, Toshihiko Ikemura, Hirohisa Sato). It stays observable in good condition for a while. But it will be fainter than 18 mag in April. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan. 11   8 36.82   23 55.3   5.889   6.839   163   17.0   1:19 (  0, 79)  
Jan. 18   8 30.25   23 56.4   5.908   6.883   171   17.1   0:45 (  0, 79)

* C/2018 U1 ( Lemmon )

Now it is 16.7 mag (Dec. 3, D. Buczynski). 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 is not observable until March. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan. 11  18 52.97   29 59.7   7.567   7.013    52   17.1   5:38 (245, 18)  
Jan. 18  18 56.25   29 47.9   7.533   6.979    52   17.0   5:38 (248, 22)

* C/2019 L3 ( ATLAS )

Now it is 16.6 mag (Dec. 27, Toshihiko Ikemura, Hirohisa Sato). It will brighten up to 12 mag in winter in 2022. In the Northern Hemisphere, it stays observable in good condition for a long time, although it becomes low from February to March. In the Southern Hemisphere, it is not observable until 2021 November. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan. 11  22 22.96   40 30.0   7.275   7.080    74   17.3  18:36 (114, 48)  
Jan. 18  22 27.59   40 24.5   7.301   7.035    70   17.3  18:42 (116, 43)

* P/2019 Y2 ( Fuls )

New comet. Now it is 17.5 mag (Jan. 5, Toshihiko Ikemura, Hirohisa Sato). It will brighten up to 16.5 mag and will be observable in good condition in March. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan. 11  12 55.97    0 22.7   1.776   2.135    97   17.5   5:37 (  0, 55)  
Jan. 18  13  4.67   -0 13.4   1.698   2.132   102   17.4   5:18 (  0, 55)

* 124P/Mrkos

Now it is 17.8 mag (Dec. 28, Toshihiko Ikemura, Hirohisa Sato). It will brighten up to 16 mag in March, and it will be observable in good condition. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan. 11  11 59.35   44  3.8   1.225   1.921   120   17.7   4:41 (180, 81)  
Jan. 18  12  1.11   44  8.8   1.147   1.890   124   17.5   4:15 (180, 81)

* 112P/Urata-Niijima

Now it is 18.8 mag (Dec. 27, Toshihiko Ikemura, Hirohisa Sato). It will brighten up to 17 mag from February to March. It is not observable in the Southern Hemisphere. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan. 11  23 44.38   -0 55.7   1.572   1.479    66   17.6  18:36 ( 48, 43)  
Jan. 18  23 59.06    2 36.3   1.604   1.465    63   17.5  18:42 ( 56, 43)

* 173P/Mueller 5

Now it is 17.9 mag (Dec. 5, R. L. Flynn). It is observable at 17-18 mag for a long time from late 2019 to early 2021. It will fade out before it passes the perihelion. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan. 11   2 51.53    2  5.5   4.637   5.066   110   17.6  19:30 (  0, 57)  
Jan. 18   2 51.64    2 32.9   4.727   5.053   103   17.6  19:03 (  0, 58)

* C/2019 T3 ( ATLAS )

Now it is 17.4 mag (Dec. 28, Toshihiko Ikemura, Hirohisa Sato). It stays observable at 16.5 mag for a long time from 2020 to 2021. In the Northern Hemisphere, it is observable in excellent condition for a long time. In the Southern Hemisphere, it is not observable until 2021 summer. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan. 11   1  5.99   78  5.7   6.212   6.620   110   17.6  18:36 (176, 47)  
Jan. 18   0 59.45   76 41.2   6.245   6.599   106   17.6  18:42 (173, 47)

* 175P/Hergenrother

It is observable at 17.5 mag in good condition until spring. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan. 11  16  4.04  -15 52.0   2.637   2.110    48   17.6   5:38 (311, 23)  
Jan. 18  16 18.50  -16 25.4   2.598   2.131    51   17.6   5:38 (314, 24)

* A/2019 C1

Asteroid moving along a comet-like orbit. Now it is 16.5 mag (Dec. 27, Toshihiko Ikemura, Hirohisa Sato). It stays observable at 17 mag from 2020 to 2021. It locates somewhat low in the Northern Hemisphere. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan. 11  11  0.04  -25  2.7   6.225   6.627   110   17.6   3:41 (  0, 30)  
Jan. 18  10 59.79  -25 14.1   6.131   6.621   115   17.6   3:14 (  0, 30)

* C/2019 Y4 ( ATLAS )

Now it is 18.1 mag (Jan. 5, Toshihiko Ikemura, Hirohisa Sato). It moves along the same orbit as C/1844 Y1 (Great Comet). It approaches to Sun down to 0.25 a.u. on May 30. It is expected to brighten up to 6 mag. In the Northern Hemisphere, it stays observable in excellent condition until mid May when it brightens up to 9 mag. In the Southern Hemisphere, it is observable only until mid February. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan. 11  11 50.31   34 12.1   2.101   2.746   121   18.0   4:32 (  0, 89)  
Jan. 18  11 51.84   36 29.3   1.938   2.648   126   17.7   4:06 (180, 89)

* 76P/West-Kohoutek-Ikemura

Now it is 17.5 mag (Jan. 5, Toshihiko Ikemura, Hirohisa Sato). It is brightening even after the perihelion passage. It will be fainter than 18 mag in January. However, it may stay bright for some more time. It is observable in good condition in the Northern Hemisphere. In the Southern Hemisphere, it is already unobservable. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan. 11  10 48.43   51 16.2   0.962   1.773   131   17.7   3:30 (180, 74)  
Jan. 18  10 51.66   54 14.7   0.981   1.802   132   17.9   3:06 (180, 71)

* C/2014 B1 ( Schwartz )

Now it is 17.7 mag (Dec. 31, Toshihiko Ikemura, Hirohisa Sato). It will be fainter than 18 mag in late April. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan. 11  12 44.49    7 15.4  10.396  10.650   102   17.8   5:26 (  0, 62)  
Jan. 18  12 45.08    7 27.6  10.301  10.667   109   17.8   4:59 (  0, 62)

* (944) Hidalgo

It brightened up to 14 mag from autumn to winter in 2018. Now it is fading. It is observable at 17.5 mag in good condition from winter to spring. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan. 11  13 47.24   -1 52.0   4.196   4.216    84   17.8   5:38 (340, 51)  
Jan. 18  13 48.52   -2 14.7   4.124   4.257    91   17.8   5:38 (350, 52)

* C/2018 DO4 ( Lemmon )

Now it is 16.5 mag (Nov. 29, Toshihiko Ikemura, Hirohisa Sato). It will be fainter than 18 mag soon. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan. 11   0 54.22   -8 32.1   2.852   2.842    79   17.8  18:36 ( 22, 44)  
Jan. 18   0 50.96   -8 39.4   3.033   2.880    71   18.0  18:42 ( 33, 41)

* C/2019 K5 ( Young )

Now it is 17.0 mag (Dec. 27, Toshihiko Ikemura, Hirohisa Sato). It stays bright even after the perihelion passage. It will fade out rapidly after this, and it will be fainter than 18 mag in January. However, it may stay bright for some more time. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan. 11   3 12.66    0  9.1   2.542   3.084   114   17.8  19:52 (  0, 55)  
Jan. 18   3 15.72    0 49.4   2.682   3.140   108   18.1  19:27 (  0, 56)

* 203P/Korlevic

Now it is 16.5 mag (Dec. 28, Toshihiko Ikemura, Hirohisa Sato). It is observable at 17 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)  
Jan. 11   3 54.87   22 38.1   2.477   3.213   131   17.9  20:34 (  0, 78)  
Jan. 18   3 54.85   22 29.4   2.552   3.210   124   17.9  20:06 (  0, 78)

* 117P/Helin-Roman-Alu 1

It will brighten up to 13 mag in 2022. In 2020, it is observable at 17.5 mag in good condition in spring. It locates somewhat low in the Southern Hemisphere. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan. 11  10 54.60   18  6.0   3.917   4.623   131   17.9   3:36 (  0, 73)  
Jan. 18  10 52.92   18 29.8   3.828   4.612   138   17.9   3:07 (  0, 73)

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