Weekly Information about Bright Comets (2019 Feb. 9: South)

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Updated on February 10, 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 Y1 ( Iwamoto )

Now it is very bright as 6.7 mag (Feb. 7, Marco Goiato). It is approaching to Earth down to 0.3 a.u., and it is observable in excellent condition.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Feb.  9  11 27.20    3 26.8   0.338   1.287   148    6.3   2:19 (180, 53)  
Feb. 16   8 36.38   27 36.6   0.327   1.294   156    6.3  22:38 (180, 26)  

* 46P/Wirtanen

It approached to Earth down to 0.08 a.u. in mid December, and it brightened up to 3.4 mag (Dec. 14, Seiichi Yoshida). it looked so large as 3 times of Moon. Now it is fading. But it is bright as 7.3 mag still now (Feb. 5, Carlos Labordena). In the Northern Hemisphere, it stays observable in excellent condition. In the Southern Hemisphere, it stays low for a while.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Feb.  9   9 30.36   52 28.4   0.374   1.304   142    8.2   0:17 (180,  2)  
Feb. 16   9 33.33   50 11.6   0.433   1.356   142    9.0  23:49 (180,  5)  

* C/2016 M1 ( PanSTARRS )

It brightened up to 7.7 mag in June (June 19, Juan Jose Gonzalez). Now it is fading. But it is still bright as 11.1 mag (Feb. 4, Chris Wyatt). In the Southern Hemisphere, it stays observable in good condition 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)  
Feb.  9   3  2.15  -71 33.0   3.137   3.015    73   11.5  20:33 ( 19, 48)  
Feb. 16   3 17.82  -68 13.1   3.173   3.066    74   11.6  20:24 ( 23, 49)  

* 64P/Swift-Gehrels

It brightened up to 9.0 mag from autumn to winter (Nov. 16, Maik Meyer). Now it is fading. But it is bright as 11.2 mag still now (Feb. 4, Chris Wyatt). It is observable in excellent condition in the Northern Hemisphere. It stays low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Feb.  9   4 27.69   26 16.3   1.204   1.795   109   11.5  20:33 (160, 26)  
Feb. 16   4 42.95   25 50.8   1.309   1.844   105   12.0  20:24 (159, 26)  

* 38P/Stephan-Oterma

It brightened up to 9.5 mag from autumn to winter (Dec. 14, Marco Goiato). Now it is fading. But it is bright as 11.2 mag still now (Feb. 5, Carlos Labordena). In the Northern Hemisphere, it stays observable in good condition for a long time until it fades out. It locates low in the Southern Hemispehre.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Feb.  9   8 26.69   47 28.4   1.048   1.940   145   11.8  23:10 (180,  8)  
Feb. 16   8 26.47   47 17.0   1.125   1.989   140   12.2  22:42 (180,  8)  

* C/2018 L2 ( ATLAS )

Now it is 12.2 mag (Feb. 2, Ken Harikae). It will be fading gradually after this. In the Northern Hemisphere, it stays observable for a long time until it fades out. But it stays extremely low. It will never be observable again in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Feb.  9  21  3.32   32  5.2   2.454   1.928    47   12.1   3:53 (255,-40)  
Feb. 16  21 27.54   34 10.9   2.502   1.970    47   12.4   4:03 (251,-38)  

* 78P/Gehrels 2

Now it is 13.5 mag (Jan. 27, Toshihiko Ikemura, Hirohisa Sato). It stays at 12-13 mag for a long time until autumn.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Feb.  9   0  8.33    1 43.2   2.669   2.060    42   12.5  20:33 ( 94,  3)  
Feb. 16   0 22.97    3  2.1   2.708   2.048    39   12.5  20:24 ( 95,  1)  

* C/2016 N6 ( PanSTARRS )

Now it is 13.0 mag (Feb. 4, Chris Wyatt). It will be fading after this.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Feb.  9   6  3.52  -22 15.1   2.835   3.406   117   13.2  20:46 (180, 77)  
Feb. 16   5 54.68  -22  7.6   2.963   3.449   111   13.4  20:24 (166, 77)  

* 123P/West-Hartley

Now it is 12.9 mag (Feb. 3, Chris Wyatt). 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)  
Feb.  9  11 38.96   31  0.4   1.236   2.127   146   13.3   2:25 (180, 24)  
Feb. 16  11 35.77   31 30.9   1.214   2.129   150   13.3   1:55 (180, 24)  

* C/2018 N2 ( ASASSN )

Now it is 14.6 mag (Jan. 22, Thomas Lehmann). It will brighten up to 10-11 mag in autumn. It will be unobservable temporarily in March.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Feb.  9   1  6.97  -23 40.3   4.603   4.071    52   13.4  20:33 ( 80, 28)  
Feb. 16   1  9.62  -21 50.9   4.639   4.030    46   13.4  20:24 ( 80, 24)  

* 29P/Schwassmann-Wachmann 1

Now it is 15.0 mag (Feb. 6, Jean-Francois Soulier).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Feb.  9  23 23.09    2 25.5   6.566   5.767    33   13.8  20:33 ( 88, -7)  
Feb. 16  23 28.06    2 57.5   6.623   5.767    27   13.8  20:24 ( 87,-10)  

* C/2017 M4 ( ATLAS )

Now it is 13.9 mag (Jan. 19, Martin Masek). It stays 13-14 mag until summer.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Feb.  9  17 29.39  -17  6.9   3.685   3.258    57   14.0   3:53 (271, 29)  
Feb. 16  17 31.29  -18 24.0   3.579   3.263    63   13.9   4:03 (267, 37)  

* 60P/Tsuchinshan 2

Now it is 13.5 mag (Jan. 28, Thomas Lehmann). It will be fading after this, and it will be fainter than 18 mag in May.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Feb.  9  11 47.33   -6  9.1   0.851   1.725   139   14.0   2:34 (180, 61)  
Feb. 16  11 46.16   -6 24.6   0.838   1.749   146   14.1   2:05 (180, 62)  

* C/2016 R2 ( PanSTARRS )

Now it is 15.2 mag (Feb. 1, 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)  
Feb.  9  15 59.84   43  1.7   3.627   3.834    94   14.3   3:53 (210,  3)  
Feb. 16  16  2.83   43 43.3   3.630   3.883    97   14.4   4:03 (204,  5)  

* C/2018 A6 ( Gibbs )

Now it is bright as 14.8 mag (Dec. 12, Kunihiro Shima). It stays 14 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)  
Feb.  9  10 38.12  -55 12.3   2.866   3.312   108   14.5   1:25 (  0, 70)  
Feb. 16  10 20.37  -57  6.8   2.815   3.288   110   14.5   0:40 (  0, 68)  

* C/2015 O1 ( PanSTARRS )

Now it is 14.5 mag (Jan. 31, Toshihiko Ikemura, Hirohisa Sato). It will be fading slowly after this. It is observable in excellent condition until spring in the Northern Hemispehre. In the Southern Hemisphere, it will be hardly observable after this.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Feb.  9  10 32.49   44  0.2   3.975   4.839   147   14.5   1:20 (180, 11)  
Feb. 16  10 18.51   44 17.7   4.010   4.876   147   14.6   0:38 (180, 11)  

* (944) Hidalgo

Now it is 14.3 mag (Nov. 30, Seiichi Yoshida). It will be fading gradually after this. It is observable in excellent condition in the Northern Hemisphere. In the Southern Hemisphere, it is not observable until summer.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Feb.  9  11 23.42   80 57.0   1.629   2.207   112   14.7   2:12 (180,-26)  
Feb. 16  10 41.48   79 51.3   1.667   2.239   112   14.8   1:03 (180,-25)  

* C/2017 B3 ( LINEAR )

Now it is 14.5 mag (Aug. 16, P. Camilleri, H. Williams). It stays 15 mag from 2018 to 2019, and it will be observable for a long time in the Southern Hemisphere. In the Northern Hemisphere, it will never be observable again.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Feb.  9  21 38.56  -59  8.7   4.567   3.922    44   14.9  20:33 ( 27, 15)  
Feb. 16  21 54.61  -57 54.3   4.554   3.923    45   14.9   4:03 (332, 15)  

* C/2017 T2 ( PanSTARRS )

Now it is 14.5 mag (Jan. 27, Toshihiko Ikemura, Hirohisa Sato). It is expected to brighten up to 7-8 mag in 2020. It will be unobservable temporarily in April.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Feb.  9   2 58.78   -0 29.8   5.353   5.319    82   15.4  20:33 (121, 37)  
Feb. 16   2 59.37    0 17.7   5.403   5.257    76   15.4  20:24 (118, 34)  

* C/2018 A3 ( ATLAS )

Now it is 14.6 mag (Jan. 21, Sandor Szabo). It stays 15 mag until March. It is observable in excellent 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)  
Feb.  9   4 42.52   71 55.3   2.818   3.287   109   15.4  20:33 (174,-17)  
Feb. 16   4 16.23   69  7.5   2.918   3.293   103   15.5  20:24 (170,-16)  

* 21P/Giacobini-Zinner

It brightened up to 6.8 mag in September (Sept. 17, Seiichi Yoshida). Now it is fading. It has already faded down to 15.3 mag (Jan. 30, Toshihiko Ikemura, Hirohisa Sato). It is observable in excellent condition in the Southern Hemisphere. It locates low after this in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Feb.  9   6  5.40  -24 34.9   1.512   2.144   116   15.4  20:49 (180, 79)  
Feb. 16   6  7.48  -22  8.6   1.610   2.206   114   15.8  20:24 (179, 77)  

* 240P/NEAT

Although it was faint as 16-17 mag in November, it brightened up to 14.7 mag in December (Dec. 12, Toshihiko Ikemura, Hirohisa Sato). It is bright as 15.1 mag still now (Jan. 31, Toshihiko Ikemura, Hirohisa Sato). In the Northern Hemisphere, it stays observable in excellent condition after this. It stays extremely low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Feb.  9  11 15.28   41  7.1   2.041   2.905   145   15.6   2:02 (180, 14)  
Feb. 16  11  9.41   42  1.4   2.060   2.935   146   15.8   1:29 (180, 13)  

* P/2014 C1 ( TOTAS )

First return of a new periodic comet discovered in 2014. It has not been recovered yet. Now it is not detected, fainter than 20.0 mag (Dec. 10, Toshihiko Ikemura, Hirohisa Sato). The condition of this apparition is excelllent. It is expected to brighten rapidly, and to be observable at 15.5 mag in excellent condition in March.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Feb.  9  10 26.69    7 36.6   0.888   1.857   163   16.4   1:13 (180, 48)  
Feb. 16  10 23.33    8 11.5   0.849   1.833   171   16.3   0:43 (180, 47)  

* 48P/Johnson

Now it is 16.0 mag (Jan. 27, Toshihiko Ikemura, Hirohisa Sato). It will be unobservable soon.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Feb.  9   1  3.45   -4  8.7   2.875   2.430    53   16.3  20:33 ( 98, 17)  
Feb. 16   1 14.81   -2 38.8   2.970   2.458    50   16.6  20:24 ( 98, 15)  

* C/2018 W2 ( Africano )

It is expected to brighten up to 10 mag in autumn. Now it is 16.7 mag (Feb. 1, Toshihiko Ikemura, Hirohisa Sato). 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)  
Feb.  9  14 33.72   73 12.9   2.622   3.076   108   16.5   3:53 (186,-19)  
Feb. 16  14 46.72   77  9.4   2.578   3.006   106   16.3   4:03 (184,-22)  

* C/2010 U3 ( Boattini )

Now it is 16.8 mag (Jan. 31, 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)  
Feb.  9  11 47.56   73 55.4   7.940   8.446   117   16.6   2:34 (180,-19)  
Feb. 16  11 41.88   74  9.5   7.957   8.446   116   16.6   2:01 (180,-19)  

* C/2017 T3 ( ATLAS )

It brightened up to 8.7 mag in July (July 18, Marco Goiato). Then it faded down to 12.3 mag in August (Aug. 29, Chris Wyatt). It stays observable in good condition after this while the comet will be fading.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Feb.  9  16 26.39  -16  3.7   3.357   3.199    72   16.7   3:53 (260, 42)  
Feb. 16  16 27.81  -15  3.6   3.319   3.280    79   16.8   4:03 (252, 48)  

* 239P/LINEAR

Now it is 16.6 mag (Feb. 1, Toshihiko Ikemura, Hirohisa Sato). It continues brightening even after the perihelion passage. It stays observable at 16-17 mag in good condition for some more time.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Feb.  9   8  5.18   -2 21.0   0.739   1.680   153   16.7  22:48 (180, 57)  
Feb. 16   8  5.41   -2 31.5   0.772   1.695   148   16.7  22:21 (180, 58)  

* C/2018 F4 ( PanSTARRS )

Now it is 17.4 mag (Jan. 3, Toshihiko Ikemura, Hirohisa Sato). 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)  
Feb.  9  14 17.16  -44  5.2   4.230   4.375    91   17.0   3:53 (309, 74)  
Feb. 16  14 15.04  -45 50.1   4.094   4.338    97   16.9   4:03 (334, 78)  

* C/2016 A1 ( PanSTARRS )

It brightened up to 14.7 mag in early 2018 (Jan. 25, Catalina Sky Survey). Now it is fading slowly. Now it is 16.7 mag (Feb. 2, Toshihiko Ikemura, Hirohisa Sato). In the Northern Hemisphere, it stays observable in good condition for a long time until the comet fades out. It is never observable again in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Feb.  9   4 38.24   71 30.1   5.842   6.243   109   17.0  20:33 (174,-17)  
Feb. 16   4 27.46   70 49.9   5.949   6.270   104   17.0  20:24 (172,-17)  

* 59P/Kearns-Kwee

Now it is 17.1 mag (Feb. 1, Toshihiko Ikemura, Hirohisa Sato). It will be fading after this, and it will be fainter than 18 mag in late March. It locates somewhat low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Feb.  9   7 58.30   22 34.9   1.664   2.603   157   17.1  22:41 (180, 32)  
Feb. 16   7 54.66   22 13.5   1.725   2.625   149   17.2  22:10 (180, 33)  

* 171P/Spahr

Now it is 16.8 mag (Jan. 29, Toshihiko Ikemura, Hirohisa Sato). It will be fading 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)  
Feb.  9   4 39.01   22 26.2   1.171   1.789   111   17.2  20:33 (161, 30)  
Feb. 16   4 48.23   24 36.4   1.242   1.798   106   17.3  20:24 (160, 27)  

* C/2014 B1 ( Schwartz )

Now it is 17.2 mag (Feb. 2, Toshihiko Ikemura, Hirohisa Sato). Fading slowly. It stays observable at 17 mag in good condition until summer.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Feb.  9  11 41.82    7 20.2   9.140   9.977   146   17.2   2:28 (180, 48)  
Feb. 16  11 40.74    7 39.5   9.092   9.988   153   17.2   2:00 (180, 47)  

* 74P/Smirnova-Chernykh

Now it is 16.8 mag (Feb. 1, 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)  
Feb.  9  15 42.73  -15 45.7   3.760   3.763    82   17.2   3:53 (251, 50)  
Feb. 16  15 47.16  -15 59.3   3.663   3.771    88   17.2   4:03 (243, 57)  

* 164P/Christensen

Now it is 17.0 mag (Jan. 29, Toshihiko Ikemura, Hirohisa Sato). It will be fading after this, and it will be fainter than 18 mag in March. It locates low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Feb.  9  11  7.59   29 22.5   1.858   2.774   152   17.2   1:54 (180, 26)  
Feb. 16  11  1.45   30 22.8   1.879   2.813   156   17.3   1:21 (180, 25)  

* 159P/LONEOS

Now it is 17.0 mag (Feb. 1, Toshihiko Ikemura, Hirohisa Sato). It will be fading after this, and it will be fainter than 18 mag in May. It locates very low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Feb.  9   5 44.73   43 42.1   3.253   3.900   124   17.3  20:33 (179, 11)  
Feb. 16   5 44.50   43 30.6   3.349   3.914   118   17.3  20:24 (176, 11)  

* C/2017 K2 ( PanSTARRS )

Now it is 16.9 mag (Feb. 2, Toshihiko Ikemura, Hirohisa Sato). It is expected to be observable at 5-6 mag for a long time from 2022 to 2023. It will be observable in good condition for a long time in the Southern Hemisphere. In the Northern Hemisphere, it is not observable at the highlight from 2022 summer to 2023 summer.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Feb.  9  18  4.95   52 33.3  12.418  12.293    80   17.4   3:53 (218,-19)  
Feb. 16  18  7.35   52 53.2  12.353  12.248    81   17.3   4:03 (215,-15)  

* C/2019 B1 ( Africano )

Now it is 17.7 mag (Feb. 2, Toshihiko Ikemura, Hirohisa Sato). In the Northern Hemisphere, it is observable at 17.5 mag in good condition in February. It is not observable in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Feb.  9   8 51.52   71 46.2   0.927   1.681   122   17.6  23:21 (180,-16)  
Feb. 16   6 41.00   64 26.8   0.939   1.654   118   17.5  20:52 (180, -9)  

* 247P/LINEAR

Now it is 17.7 mag (Jan. 31, Toshihiko Ikemura, Hirohisa Sato). It will be fading after this, and it will be fainter than 18 mag in late February. It locates very low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Feb.  9  11 21.42   38 30.9   0.759   1.670   145   17.6   2:08 (180, 17)  
Feb. 16  11 15.99   38 34.0   0.782   1.704   148   17.8   1:35 (180, 17)  

* C/2018 X2 ( Fitzsimmons )

Now it is 17.6 mag (Jan. 30, Toshihiko Ikemura, Hirohisa Sato). It stays 17 mag from spring to summer. But it is hardly observable. In the Northern Hemisphere, it is observable only until May. In the Southern Hemisphere, it stays locating extremely low.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Feb.  9   3 49.74   47 12.6   2.309   2.728   104   17.7  20:33 (160,  4)  
Feb. 16   3 56.81   46 20.4   2.339   2.681    99   17.6  20:24 (158,  4)  

* C/2015 XY1 ( Lemmon )

Now it is 17.7 mag (Jan. 29, Toshihiko Ikemura, Hirohisa Sato). It will be fading after this, and it will be fainter than 18 mag in April.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Feb.  9   4 23.44    3 54.8   7.817   8.117   104   17.7  20:33 (148, 46)  
Feb. 16   4 21.17    3 53.9   7.947   8.127    97   17.7  20:24 (142, 44)  

* (6478) Gault

Main-belt asteroid. But it shows a straight tail like a comet. Now it is 17.3 mag (Feb. 4, 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)  
Feb.  9  10 38.41  -11 10.6   1.509   2.407   148   17.9   1:25 (180, 66)  
Feb. 16  10 33.10  -10  5.0   1.458   2.392   155   17.8   0:52 (180, 65)  

* 361P/2017 S4 ( Spacewatch )

Now it is 17.1 mag (Jan. 29, Toshihiko Ikemura, Hirohisa Sato). It will be fading after this, and it will be fainter than 18 mag in late February.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Feb.  9   6 50.46    3 57.0   2.329   3.146   139   17.8  21:34 (180, 51)  
Feb. 16   6 49.18    4 30.7   2.408   3.167   133   17.9  21:05 (180, 50)  

* 373P/2018 R2 ( Rinner )

Now it is 17.5 mag (Jan. 29, Toshihiko Ikemura, Hirohisa Sato). First return of a new periodic comet which brightened up to 16 mag in 2011. It will be fading 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)  
Feb.  9   3  9.80   11 57.6   2.157   2.351    88   17.8  20:33 (134, 30)  
Feb. 16   3 18.79   12 14.5   2.233   2.343    83   17.8  20:24 (132, 28)  

* C/2016 X1 ( Lemmon )

Now it is 17.5 mag (Jan. 29, Toshihiko Ikemura, Hirohisa Sato). It is observable at 18 mag in winter.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Feb.  9   7 10.52    3 53.1   6.757   7.580   144   17.9  21:54 (180, 51)  
Feb. 16   7  9.04    3 54.9   6.816   7.577   137   18.0  21:25 (180, 51)  

* 375P/2018 T1 ( Hill )

Now it is 17.8 mag (Feb. 1, Toshihiko Ikemura, Hirohisa Sato). It is observable at 18 mag in good condition from January to February. It locates low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Feb.  9  10 36.98   30 45.7   1.011   1.960   157   17.9   1:24 (180, 24)  
Feb. 16  10 30.02   29 44.5   1.019   1.979   161   18.0   0:49 (180, 25)  

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