Weekly Information about Bright Comets (2021 Jan. 2: South)

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Updated on January 6, 2021
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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/2020 S3 ( Erasmus )

It brightened up to 5.6 mag in early December (Dec. 9, Marco Goiato). In mid December, it was visible at about 3 mag in the SOHO spacecraft images (Dec. 18, Hirohisa Sato). Now it is not observable. It will appear in the morning sky again in April. But then it will be fainter than 15 mag.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan.  2  19  0.09  -15 20.1   1.617   0.658     7    8.2  21:03 ( 51,-22)  
Jan.  9  19 38.79  -12 37.4   1.738   0.791    10    9.2  21:01 ( 55,-22)  

* C/2020 M3 ( ATLAS )

It brightened up to 7.3 mag in November (Nov. 7, Marco Goiato). Now it is fading. But it is bright as 9.8 mag still now (Dec. 17, Osamu Miyazaki). In the Northern Hemisphere, it stays observable in excellent condition for a long time. In the Southern Hemisphere, it stays locating extremely low after this.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan.  2   5 13.93   45 43.9   0.684   1.612   150   10.2  22:25 (180,  9)  
Jan.  9   5 15.50   47 12.0   0.773   1.674   144   10.7  22:00 (180,  8)  

* 141P/Machholz 2

It brightened very rapidly in early December. Now it is very bright as 11.8 mag (Dec. 14, Alan Hale). In addition, Michael Jager observed two more components of 16.5-17.5 mag. It stays observable for a long time in this apparition.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan.  2  22 50.96   -8 12.3   0.601   0.853    59   11.1  21:03 ( 92, 17)  
Jan.  9  23 41.30   -7 29.6   0.559   0.895    64   11.2  21:01 ( 97, 22)  

* 88P/Howell

It brightened up to 8.2 mag in autumn (Oct. 13, Chris Wyatt). Now it is fading. But it is bright as 10.7 mag still now (Dec. 14, Seiichi Yoshida). It stays observable in the evening low sky while it will be getting fainter gradually, until early January in the Southern Hemisphere, or late February in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan.  2  22 17.46  -13 48.1   2.166   1.706    49   11.5  21:03 ( 83, 13)  
Jan.  9  22 36.12  -11 51.2   2.254   1.749    47   11.8  21:01 ( 83, 11)  

* C/2019 N1 ( ATLAS )

Now it is bright as 11.9 mag (Dec. 3, Ken-ichi Kadota). It stays 12 mag until March. In the Southern Hemisphere, it stays observable in good condition after this. In the Northern Hemisphere, it will never be observable after this.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan.  2  14 31.42  -42 59.3   2.095   1.753    56   11.7   3:04 (301, 36)  
Jan.  9  14 39.64  -48 24.2   2.037   1.777    60   11.7   3:12 (307, 42)  

* 156P/Russell-LINEAR

Brightened rapidly. Now it is very bright as 10.3 mag (Dec. 15, Carlos Labordena). In the Northern Hemisphere, it stays observable in good condition for a long time. In the Southern Hemisphere, it locates extremely low after this.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan.  2   1 13.92   26 52.5   0.815   1.431   105   12.0  21:03 (144, 18)  
Jan.  9   1 32.87   29 43.3   0.880   1.462   103   12.5  21:01 (144, 14)  

* 398P/2020 P2 ( Boattini )

First return of a new periodic comet which brightened up to 13 mag in 2009. Now it is bright as 12.4 mag (Dec. 14, Seiichi Yoshida). It stays 12 mag until January, and it is observable in excellent condition.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan.  2   4 47.08    0 26.0   0.382   1.308   142   12.2  21:59 (180, 54)  
Jan.  9   4 56.80    4 42.9   0.395   1.315   141   12.4  21:41 (180, 50)  

* C/2020 R4 ( ATLAS )

Brightened rapidly. Now it is very bright as 12.3 mag (Dec. 21, Ken-ichi Kadota). It will approach to Earth down to 0.46 a.u. in April, and it is expected to brighten up to 9 mag and to be observable in excellent condition. It will be unobservable temporarily from January to February.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan.  2  21 16.14  -18 51.0   2.109   1.409    34   12.6  21:03 ( 70,  4)  
Jan.  9  21 11.30  -18  6.8   2.147   1.337    26   12.4  21:01 ( 66, -3)  

* 29P/Schwassmann-Wachmann 1

Now it is 13.3 mag (Dec. 19, Toshihiko Ikemura, Hirohisa Sato).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan.  2   2 14.55   24 21.8   5.327   5.847   117   13.4  21:03 (155, 26)  
Jan.  9   2 14.82   24 10.2   5.430   5.849   110   13.4  21:01 (149, 24)  

* 10P/Tempel 2

It will brighten up to 11.5 mag in spring. However, the condition is very bad in this apparition. It will appear in the morning low sky in March 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.  2  17 53.55  -18 45.7   2.582   1.644    13   14.2   3:04 (304,-12)  
Jan.  9  18 15.34  -19  9.0   2.535   1.610    15   13.9   3:12 (302,-10)  

* C/2019 L3 ( ATLAS )

Now it is 13.2 mag (Dec. 12, Toshihiko Ikemura, Hirohisa Sato). It will brighten up to 11 mag in winter in 2022. In the Northern Hemisphere, it stays observable in good condition for a long time. 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.  2   0 11.90   56 51.8   4.516   4.849   104   14.0  21:03 (153,-13)  
Jan.  9   0 18.46   56  1.9   4.540   4.810    99   14.0  21:01 (150,-14)  

* C/2017 K2 ( PanSTARRS )

Now it is 13.8 mag (Dec. 22, 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 is not observable now. 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.  2  17 53.33   35  6.1   7.880   7.431    59   14.2   3:04 (252,-42)  
Jan.  9  17 57.60   35  2.5   7.811   7.376    60   14.1   3:12 (249,-36)  

* C/2019 F1 ( ATLAS-Africano )

Now it is 14.8 mag (May 14, Toshiyuki Takahashi). It will brighten up to 13 mag from spring to summer. In the Southern Hemisphere, it stays observable in good condition for a long time. In the Northern Hemisphere, it is not observable until July in 2022.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan.  2  16 21.01  -46 44.1   4.641   3.916    38   14.3   3:04 (314, 20)  
Jan.  9  16 32.05  -48  6.6   4.561   3.892    42   14.2   3:12 (313, 24)  

* 246P/NEAT

It stays 13-14 mag from 2020 to 2021. Appearing in the moring sky. It will be observable in good condition after this 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)  
Jan.  2  16 48.42  -19  5.4   3.702   2.878    28   14.3   3:04 (294,  0)  
Jan.  9  17  0.23  -19 42.0   3.651   2.874    32   14.3   3:12 (291,  4)  

* C/2017 T2 ( PanSTARRS )

It had been observed as 8-9 mag for a long time in 2020. Now it is fading. Appearing in the moring sky. It will be observable in good condition after this in the Southern Hemisphere. It locates extremely low after this in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan.  2  16 52.82  -26 25.9   4.241   3.392    26   14.4   3:04 (300,  3)  
Jan.  9  17  0.39  -27 24.5   4.252   3.459    32   14.5   3:12 (297,  9)  

* C/2020 N1 ( PanSTARRS )

Now it is 15.8 mag (Dec. 3, Ken-ichi Kadota). It will brighten up to 13.5 mag from winter to spring. In the Northern Hemisphere, it stays observable in excellent condition. In the Southern Hemisphere, it stays extremely low until spring.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan.  2   0 13.92   33 16.3   1.256   1.665    95   14.7  21:03 (137,  5)  
Jan.  9   0 30.33   31 40.1   1.246   1.607    91   14.5  21:01 (135,  5)  

* 11P/Tempel-Swift-LINEAR

It brightened very rapidly up to 12.5 mag in early December (Dec. 7, Michael Jager). Now it is fading. It has already faded down to 15.9 mag (Dec. 21, Toshihiko Ikemura, Hirohisa Sato). It stays observable in excellent condition for a while.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan.  2   2 19.22    6 18.3   0.745   1.447   112   15.0  21:03 (148, 43)  
Jan.  9   2 38.30    6  7.7   0.804   1.470   110   15.4  21:01 (146, 43)  

* C/2020 J1 ( SONEAR )

Now it is 14.9 mag (Oct. 10, Chris Wyatt). It will brighten up to 13.5 mag in spring. In the Southern Hemisphere, it stays observable in good condition for a long time, although it became unobservable temporarily in December. In the Northern Hemisphere, it is not observable until spring.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan.  2  17 41.60  -42 24.0   4.375   3.500    24   15.1   3:04 (319,  6)  
Jan.  9  17 44.45  -42  0.0   4.317   3.482    28   15.1   3:12 (315, 10)  

* 17P/Holmes

Now it is 15.8 mag (Nov. 5, Ken-ichi Kadota). It will be unobservable soon.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan.  2  21 13.79  -14 38.8   2.845   2.115    34   15.2  21:03 ( 73,  1)  
Jan.  9  21 27.90  -12 54.2   2.880   2.106    31   15.1  21:01 ( 73, -2)  

* C/2020 F5 ( MASTER )

Now it is 15.0 mag (Nov. 15, Chris Wyatt). It stays 14-15 mag until the end of 2021. In the Southern Hemisphere, it stays observable in good condition for a long time. In the Northern Hemisphere, it is not observable until June.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan.  2  20 44.13  -55 56.5   5.097   4.378    39   15.2  21:03 ( 35, 20)  
Jan.  9  20 56.72  -54 37.9   5.113   4.370    37   15.2  21:01 ( 35, 18)  

* C/2018 U1 ( Lemmon )

Now it is 15.9 mag (Nov. 10, 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 became unobservable temporarily in December. In the Southern Hemisphere, it is not observable until February.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan.  2  18  1.19    4 58.9   6.335   5.509    30   15.4   3:04 (286,-29)  
Jan.  9  18  4.55    4 31.4   6.291   5.487    32   15.4   3:12 (281,-23)  

* C/2019 T4 ( ATLAS )

Now it is 15.4 mag (Dec. 3, Ken-ichi Kadota). It is expected to brighten up to 13 mag in 2022. It is observable in excellent condition in the Southern Hemisphere. In the Northern Hemisphere, it is observable from autumn to winter, but it locating extremely low.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan.  2   8 26.23  -40 20.1   5.526   5.978   112   15.5   1:40 (  0, 85)  
Jan.  9   8 23.37  -40 34.2   5.449   5.940   115   15.4   1:10 (  0, 84)  

* C/2018 N2 ( ASASSN )

Now it is 14.5 mag (Dec. 21, Toshihiko Ikemura, Hirohisa Sato). In the Northern Hemisphere, it stays observable for a long time while it is getting fainter slowly. 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.  2  16 23.52   60  5.8   4.904   4.973    88   15.5   3:04 (216,-34)  
Jan.  9  16 28.35   60 28.7   4.927   5.019    89   15.6   3:12 (215,-30)  

* C/2020 F3 ( NEOWISE )

It approached to Sun down to 0.29 a.u. on July 3, and it brightened up to 0.6 mag (Alan Hale). Now it is fading. It has been already fainter than 15.0 mag (Oct. 12, Mitsunori Tsumura). Appearing in the morning sky.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan.  2  16 27.61  -23 15.4   4.049   3.265    32   15.7   3:04 (294,  6)  
Jan.  9  16 31.44  -23 44.6   4.062   3.354    38   15.9   3:12 (291, 12)  

* C/2019 T2 ( Lemmon )

Now it is 16.3 mag (Nov. 9, Toshihiko Ikemura, Hirohisa Sato). It will brighten up to 14.5 mag from spring to summer. In the Southern Hemisphere, it stays observable in excellent condition for a long time. In the Northern Hemisphere, it is not observable after this.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan.  2  21 32.17  -34 32.2   3.610   2.888    37   15.9  21:03 ( 59, 16)  
Jan.  9  21 37.92  -35  9.6   3.639   2.860    32   15.8  21:01 ( 56, 12)  

* 405P/2020 U1 ( Lemmon )

First return of a new periodic comet which brightened up to 17 mag in 2013. Now it is 16.6 mag (Dec. 12, Toshihiko Ikemura, Hirohisa Sato). It stays 16 mag until January.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan.  2  12 54.68   14 57.9   0.477   1.128    94   15.9   3:04 (229, 24)  
Jan.  9  13 12.48   11  4.9   0.485   1.142    96   16.0   3:12 (228, 29)  

* C/2020 X3 ( SOHO )

Tiny comet of Kreutz group. It was visible at 5 mag on the ground at the total eclipse on Dec. 14. It is observable in the Southern Hemisphere. But it must have already disappeared.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan.  2  16 53.41  -69 21.5   0.567   0.752    49   16.0   3:04 (337, 27)  
Jan.  9   2 53.89  -88  3.3   0.556   0.937    68   16.9  21:01 (  1, 38)  

* 323P/SOHO

Five apparitions of this comet was confirmed in 1999, 2004, 2008, 2012 and 2016. It will approach to Sun down to 0.04 a.u. on Jan. 17. It may be observed on the ground in December and February.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan.  2  15 58.11  -21 43.9   0.893   0.642    39   17.8   3:04 (289, 11)  
Jan.  9  17 28.00  -24 19.6   0.871   0.431    25   16.0   3:12 (298,  3)  

* 277P/LINEAR

It brightened rapidly and became brighter than expected. Now it is 15.8 mag (Dec. 21, Toshihiko Ikemura, Hirohisa Sato). It is observable in good condition in the Northern Hemisphere. It locates somewhat low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan.  2   2 35.72   27 48.0   1.182   1.905   122   16.1  21:03 (162, 25)  
Jan.  9   2 44.73   26 29.4   1.239   1.906   117   16.1  21:01 (157, 25)  

* (3200) Phaethon

It approached to Sun down to 0.14 a.u. on Dec. 7, and it must have brightened up to 11 mag. But it was not observable at the high light. In the Northern Hemisphere, it is observable in the evening low sky from January to February. It is not observable in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan.  2  20 54.05   -4 25.3   1.301   0.754    35   16.1  21:03 ( 79, -9)  
Jan.  9  21 32.60   -0 25.9   1.409   0.889    38   16.5  21:01 ( 84, -9)  

* 409P/2020 V1 ( LONEOS-Hill )

First return of a new periodic comet which brightened up to 14-15 mag in 2006. Now it is 17.1 mag (Dec. 19, Toshihiko Ikemura, Hirohisa Sato). It will brighten up to 15-16 mag from February to March, and will be observable in good condition.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan.  2  11 48.44    1 35.5   1.250   1.777   104   16.4   3:04 (223, 44)  
Jan.  9  12  2.53    1 54.2   1.184   1.767   108   16.1   3:12 (217, 47)  

* 162P/Siding Spring

Now it is 15.7 mag (Dec. 8, Toshihiko Ikemura, Hirohisa Sato). It will be fading after this, and will be fainter than 18 mag in April. In the Northern Hemisphere, it stays observable in good condition for a long time after this. In the Southern Hemisphere, it will be unobservable in January.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan.  2  23 42.95    8 58.3   1.103   1.321    78   16.3  21:03 (115, 17)  
Jan.  9   0  0.16   13 36.6   1.156   1.341    77   16.4  21:01 (117, 12)  

* 117P/Helin-Roman-Alu 1

Now it is 17.2 mag (Dec. 20, Toshihiko Ikemura, Hirohisa Sato). It will brighten up to 13 mag in 2022. In 2021, it is observable at 15-16 mag in good condition.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan.  2  13 28.88   -1 59.4   3.952   3.908    80   16.6   3:04 (250, 30)  
Jan.  9  13 33.21   -2 18.7   3.831   3.892    86   16.5   3:12 (244, 36)  

* C/2019 T3 ( ATLAS )

Now it is 16.4 mag (Dec. 17, Toshihiko Ikemura, Hirohisa Sato). It is observable at 16.5-17 mag from 2020 to 2021. In the Southern Hemisphere, it is not observable until summer in 2021

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan.  2  22 13.87   49 42.9   5.957   5.961    85   16.6  21:03 (136,-23)  
Jan.  9  22 17.42   48 28.6   6.034   5.958    80   16.6  21:01 (133,-25)  

* C/2020 T2 ( Palomar )

Now it is 16.6 mag (Dec. 22, Toshihiko Ikemura, Hirohisa Sato). It is expected to brighten up to 14 mag from spring to summer, and it stays observable in good condition for a long time.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan.  2  13 11.57   25 31.0   2.748   3.001    95   17.0   3:04 (225, 13)  
Jan.  9  13 20.32   25 49.5   2.619   2.946    99   16.8   3:12 (220, 17)  

* C/2017 B3 ( LINEAR )

It brightened up to 13.8 mag in autumn in 2019 (Sept. 3, 2019, Chris Wyatt). Now it is fading slowly. It has already faded down to 17.2 mag (Dec. 8, Toshihiko Ikemura, Hirohisa Sato).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan.  2  23 44.94    4 26.5   7.074   6.917    76   16.8  21:03 (111, 20)  
Jan.  9  23 46.59    4 52.0   7.229   6.960    70   16.9  21:01 (107, 15)  

* C/2018 F4 ( PanSTARRS )

It brightened up to 13.5 mag in last winter (Dec. 6, 2019, Chris Wyatt). Now it is fading slowly. Now it is 17.1 mag (Dec. 19, Toshihiko Ikemura, Hirohisa Sato). In the Southern Hemisphere, it stays observable for a long time. It locates somewhat low in the Northern Hemisphere. Taras Prystavski found its fragmentation on Sept. 12.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan.  2   1 13.40  -24 24.1   4.907   4.931    85   16.8  21:03 ( 97, 54)  
Jan.  9   1 12.98  -22 56.6   5.051   4.973    79   17.0  21:01 ( 94, 48)  

* 84P/Giclas

Now it is 16.6 mag (Dec. 27, Michael Jager). It stays observable in good condition. But it will be fading after this, and will be fainter than 18 mag in February. It locates somewhat low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan.  2   8 29.36   20 40.1   1.583   2.517   156   16.9   1:44 (180, 34)  
Jan.  9   8 22.95   21 25.3   1.591   2.555   165   17.1   1:10 (180, 34)  

* C/2019 C1 ( ATLAS )

It brightened up to 16.1 mag in last winter (Mar. 18, Toshihiko Ikemura, Hirohisa Sato). Now it is 17.7 mag (Dec. 21, Toshihiko Ikemura, Hirohisa Sato). In 2021, 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)  
Jan.  2  13  7.04  -20 14.5   6.901   6.775    78   17.0   3:04 (265, 45)  
Jan.  9  13  9.44  -20 22.1   6.801   6.786    84   17.0   3:12 (259, 51)  

* C/2020 H6 ( ATLAS )

It stays observable at 16-17 mag from 2021 to 2022.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan.  2  14 15.61  -27 40.4   5.566   5.169    61   17.4   3:04 (282, 34)  
Jan.  9  14 19.34  -27 27.3   5.441   5.146    67   17.3   3:12 (279, 40)  

* 173P/Mueller 5

Now it is 17.0 mag (Dec. 9, Toshihiko Ikemura, Hirohisa Sato). 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.  2   5 31.85   18 23.4   3.522   4.464   161   17.5  22:43 (180, 37)  
Jan.  9   5 28.06   18 40.5   3.554   4.455   153   17.5  22:11 (180, 36)  

* C/2020 R7 ( ATLAS )

Now it is 17.9 mag (Nov. 19, Giuseppe Pappa). It is expected to brighten up to 12 mag in 2022. In the Southern Hemisphere, it stays observable in good condition for a long time. In the Northern Hemisphere, it locates extremely low until mid February, then it becomes unobservable until 2022.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan.  2   3  2.83  -49 50.8   6.269   6.372    91   17.5  21:03 ( 28, 73)  
Jan.  9   2 57.33  -49 24.9   6.285   6.322    87   17.5  21:01 ( 40, 69)  

* 397P/2020 M2 ( Lemmon )

First return of a new periodic comet which brightened up to 17.5 mag in 2012. Now it is 17.9 mag (Dec. 9, Toshihiko Ikemura, Hirohisa Sato). It stays observable at 17 mag in good condition from summer to winter. It locates low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan.  2   4 28.97   37 46.8   1.785   2.660   146   17.6  21:40 (180, 17)  
Jan.  9   4 26.43   37 19.2   1.858   2.684   139   17.8  21:10 (180, 18)  

* C/2020 V2 ( ZTF )

Now it is 18.2 mag (Nov. 23, Toshihiko Ikemura, Hirohisa Sato). It is expected to brighten up to 10 mag in 2023. In the Northern Hemisphere, it stays observable in good condition until 2023 autumn. In the Southern Hemipshere, it stays extremely low until mid July, then it becomes unobservable for a while. But it becomes observable in good condition after 2023 summer.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan.  2  13 20.07   26 55.4   8.144   8.271    93   17.7   3:04 (226, 11)  
Jan.  9  13 20.32   27 35.1   7.990   8.220   100   17.7   3:12 (219, 15)  

* C/2020 P1 ( NEOWISE )

It approached to Sun down to 0.34 a.u. on Oct. 20. Then the nucleus was disintegrated. After the perihelion passage, it was observed at 12.5 mag (Oct. 28, Michael Jager). Now only the remnant tail is visible. In the Northern Hemisphere, it stays observable while the comet will be fading rapidly. In the Southern Hemipshere, it will never be observable again.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan.  2  15 37.20    5 46.0   2.014   1.661    55   17.7   3:04 (263, -1)  
Jan.  9  15 43.05    5 48.6   2.049   1.778    60   18.1   3:12 (259,  5)  

* A/2019 U5

Now it is 17.7 mag (Nov. 3, ATLAS-HKO, Haleakala). Although it is an asteroid, it is brightening rapidly. It may brighten up to 11 mag in 2023. In the Northern Hemisphere, it stays observable in good condition for a long time. In the Southern Hemisphere, it is not observable now. It will appear in mid March, but it stays extremely low after that.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan.  2  18 18.44   36 44.5   8.081   7.640    60   17.8   3:04 (252,-48)  
Jan.  9  18 21.24   36 51.8   8.028   7.595    60   17.7   3:12 (249,-41)  

* 7P/Pons-Winnecke

Now it is 19.0 mag (Dec. 22, Toshihiko Ikemura, Hirohisa Sato). It will brighten up to 11 mag from May to August. In the Southern Hemisphere, it stays observable in excellent condition for a long time. In the Northern Hemisphere, it stays observable in good condition for a while. But it becomes extremely low after July.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan.  2  14  3.83   11 28.2   2.012   2.047    77   18.0   3:04 (245, 14)  
Jan.  9  14 19.00   11  1.9   1.894   1.993    81   17.8   3:12 (242, 18)  

* 99P/Kowal 1

Now it is 18.2 mag (Dec. 17, Toshihiko Ikemura, Hirohisa Sato). It stays 17-18 mag for a long time from 2021 to 2023.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan.  2  11 12.83    9 14.4   4.505   5.013   115   18.0   3:04 (208, 42)  
Jan.  9  11 12.82    9 17.7   4.400   5.005   123   17.9   3:12 (197, 44)  

* 178P/Hug-Bell

Now it is 17.0 mag (Dec. 27, Michael Jager). It stays observable in good condition for a while, but it will be fading after this.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Jan.  2   7 37.59   23 13.4   1.377   2.350   169   17.9   0:53 (180, 32)  
Jan.  9   7 30.98   24  8.5   1.400   2.382   176   18.0   0:19 (180, 31)  

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