Weekly Information about Bright Comets (2020 Nov. 28: North)

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 Updated on November 28, 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/2020 S3 ( Erasmus )

Now it is very bright as 7.1 mag (Nov. 26, Willian Souza). It will approach to Sun down to 0.4 a.u. on Dec. 13, and will brighten up to 6 mag. It will be unobservable soon. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 28  14  3.44  -22 50.0   1.081   0.555    30    6.6   5:17 (304,  6)  
Dec.  5  15 10.15  -23 39.1   1.165   0.449    22    5.9   5:23 (299,  0)

* C/2020 M3 ( ATLAS )

Now it is very bright as 7.8 mag (Nov. 24, Marco Goiato). In the Northern Hemisphere, it stays observable in excellent condition for a long time. In the Southern Hemisphere, it will be low in December. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 28   5 25.80   21 58.9   0.386   1.361   163    8.0   0:59 (  0, 77)  
Dec.  5   5 23.04   29 34.7   0.421   1.401   169    8.4   0:28 (  0, 84)

* 88P/Howell

Now it is 9.4 mag (Nov. 15, Chris Wyatt). It stays observable in the evening low sky after this while it will be getting fainter gradually. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 28  20 29.55  -22 46.6   1.780   1.515    58   10.1  18:18 ( 35, 24)  
Dec.  5  20 53.26  -21 11.1   1.849   1.549    56   10.3  18:18 ( 36, 25)

* 156P/Russell-LINEAR

Brightened rapidly. Now it is very bright as 9.7 mag (Nov. 15, Chris Wyatt). It is observable at 10-11 mag in excellent condition from October to November. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 28  23 58.45    6 24.2   0.569   1.338   116   10.5  19:29 (  0, 62)  
Dec.  5   0 10.43   11 19.9   0.606   1.348   113   11.0  19:13 (  0, 67)

* 398P/2020 P2 ( Boattini )

First return of a new periodic comet which brightened up to 13 mag in 2009. Now it is bright as 13.5 mag (Nov. 21, Seiichi Yoshida). It is expected to brighten up to 12 mag and to be observable in excellent condition in winter. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 28   4 23.33  -12 52.9   0.411   1.346   145   12.7  23:52 (  0, 42)  
Dec.  5   4 25.95  -11 45.2   0.394   1.329   145   12.5  23:27 (  0, 43)

* C/2019 N1 ( ATLAS )

It brightened up to 13.5 mag in summer (July 31, Ken-ichi Kadota). It is expected to brighten up to 12 mag from autumn to winter. In the Southern Hemisphere, it will appear in the morning sky in December, then it stays observable in good condition. In the Northern Hemisphere, it will be observable in the extremely low sky only from November to December. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 28  13 54.00  -19 49.8   2.442   1.705    33   12.6   5:17 (303, 10)  
Dec.  5  14  1.15  -23 59.1   2.372   1.705    37   12.5   5:23 (310, 11)

* 141P/Machholz 2

It was expected to brighten very rapidly, and brighten up to 11 mag from December to January. But actually it is much fainter than this ephemeris. Now it is fainter than 16.5 mag (Nov. 21, Michael Jager). It stays observable for a long time in this apparition. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 28  19 51.13  -10 11.5   0.954   0.861    52   13.2  18:18 ( 51, 29)  
Dec.  5  20 19.48   -9 52.1   0.879   0.829    52   12.6  18:18 ( 51, 29)

* (3200) Phaethon

It will approach to Sun down to 0.14 a.u. on Dec. 7, and will brighten up to 11 mag. But it is not observable at the high light. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 28  14 43.76  -21 37.6   0.801   0.380    21   15.8   5:17 (297,  0)  
Dec.  5  16  3.95  -24 36.6   1.021   0.178     9   13.2   5:23 (293,-11)

* 29P/Schwassmann-Wachmann 1

Jean-Franois Soulier and Nick James discovered its new outburst on Nov. 19. Now it is bright as 12.6 mag (Nov. 20, Maik Meyer). 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 28   2 21.94   25 50.4   4.940   5.840   153   13.2  21:51 (  0, 81)  
Dec.  5   2 19.39   25 30.3   4.995   5.841   146   13.2  21:21 (  0, 81)

* 11P/Tempel-Swift-LINEAR

It approached to Earth down to 0.5 a.u. in November, and it brightened very rapidly. Now it is very bright as 13.4 mag (Nov. 6, Michael Jager). It is observable in excellent condition. But it seems to fade out very rapidly after this. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 28   0 44.37   12 14.3   0.539   1.389   128   13.6  20:15 (  0, 67)  
Dec.  5   1  2.47   10 16.3   0.567   1.392   125   13.8  20:05 (  0, 65)

* C/2017 T2 ( PanSTARRS )

Now it is 11.2 mag (Sept. 11, Carlos Labordena). Now it is not observable. It will appear in the morning sky at 14.5 mag. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 28  16 10.92  -20 55.5   4.044   3.058     1   13.8   5:17 (284,-17)  
Dec.  5  16 19.72  -22  7.9   4.103   3.125     6   13.9   5:23 (288,-13)

* 246P/NEAT

It stays 13-14 mag from 2020 to 2021. It is not observable until January. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 28  15 49.50  -15 12.9   3.873   2.902     8   14.4   5:17 (282, -9)  
Dec.  5  16  1.15  -16  5.9   3.851   2.897    12   14.4   5:23 (286, -6)

* C/2017 K2 ( PanSTARRS )

Now it is 14.0 mag (Nov. 11, 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)  
Nov. 28  17 31.92   36 34.6   8.138   7.701    60   14.4  18:18 (117, 28)  
Dec.  5  17 36.07   36  7.7   8.098   7.647    59   14.4  18:18 (119, 23)

* C/2019 L3 ( ATLAS )

Now it is 13.9 mag (Nov. 9, 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. 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)  
Nov. 28  23 54.55   61 32.5   4.483   5.053   120   14.5  19:24 (180, 63)  
Dec.  5  23 55.66   60 35.6   4.475   5.012   117   14.5  18:58 (180, 64)

* C/2019 F1 ( ATLAS-Africano )

Now it is 14.8 mag (May 14, Toshiyuki Takahashi). It will brighten up to 13 mag in 2021. In the Southern Hemisphere, it becomes too low to observe temporarily from mid October to mid December. 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)  
Nov. 28  15 30.64  -40 17.8   4.952   4.048    21   14.5   5:17 (306,-19)  
Dec.  5  15 40.06  -41 31.6   4.903   4.020    23   14.5   5:23 (310,-16)

* 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 faded down to 11.3 mag in September (Sept. 27, Mitsunori Tsumura). Now it is not observable. It will appear in the morning sky at 16 mag. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 28  16  2.07  -20 22.9   3.785   2.801     3   14.6   5:17 (285,-15)  
Dec.  5  16  7.87  -21  1.8   3.866   2.897     9   14.9   5:23 (289,-10)

* 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)  
Nov. 28  14 48.75    7 48.7   1.643   1.027    36   15.2   5:17 (272, 16)  
Dec.  5  15  1.37    7  6.2   1.747   1.162    39   15.9   5:23 (275, 20)

* C/2020 F5 ( MASTER )

Now it is 15.0 mag (Nov. 15, Chris Wyatt). It stays 14-15 mag until 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 in 2021. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 28  19 34.46  -62 25.9   4.954   4.432    53   15.2  18:18 ( 21,-15)  
Dec.  5  19 49.30  -61  9.5   4.990   4.419    49   15.2  18:18 ( 23,-15)

* C/2018 N2 ( ASASSN )

Now it is 14.3 mag (Nov. 5, Sandor Szabo). 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)  
Nov. 28  15 50.08   60 14.4   4.783   4.742    81   15.3   5:17 (215, 29)  
Dec.  5  15 57.80   59 55.3   4.809   4.788    82   15.3   5:23 (216, 32)

* 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 2021. In the Southern Hemisphere, it stays observable in good condition for a long time, although it becomes unobservable temporarily in December. In the Northern Hemisphere, it is not observable until spring in 2021. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 28  17 25.29  -45  9.1   4.450   3.606    27   15.3  18:18 ( 47,-18)  
Dec.  5  17 28.53  -44 29.0   4.463   3.583    23   15.3  18:18 ( 50,-22)

* 17P/Holmes

Now it is 15.8 mag (Nov. 5, Ken-ichi Kadota). It is observable only until mid December in the Southern Hemisphere, or mid January in the Northern Hemisphere. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 28  20  4.26  -22 24.8   2.632   2.179    52   15.4  18:18 ( 40, 21)  
Dec.  5  20 17.91  -20 59.3   2.680   2.164    48   15.4  18:18 ( 44, 20)

* C/2020 N1 ( PanSTARRS )

Now it is 16.1 mag (Nov. 18, Thomas Lehmann). It will brighten up to 13.5 mag from winter to spring in 2021. 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)  
Nov. 28  23 25.25   42 15.7   1.346   1.994   116   15.6  18:55 (180, 83)  
Dec.  5  23 30.12   40 23.0   1.321   1.925   112   15.4  18:32 (180, 85)

* 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 becomes 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)  
Nov. 28  17 44.28    8  9.6   6.387   5.625    36   15.5  18:18 ( 89, 16)  
Dec.  5  17 47.52    7 23.8   6.399   5.601    33   15.5  18:18 ( 91, 11)

* 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)  
Nov. 28  16 15.03  -14 46.1   2.814   1.838     6   16.1   5:17 (278,-14)  
Dec.  5  16 33.28  -15 47.4   2.770   1.797     7   15.7   5:23 (281,-12)

* C/2019 T4 ( ATLAS )

Now it is 15.4 mag (Nov. 4, Giuseppe Pappa). It is expected to brighten up to 13 mag in 2022. In 2020, 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)  
Nov. 28   8 33.15  -37 34.4   5.990   6.167    95   15.8   4:05 (  0, 17)  
Dec.  5   8 32.90  -38 17.3   5.890   6.129    99   15.7   3:37 (  0, 17)

* 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 2021. In the Southern Hemisphere, it stays observable in excellent condition for a long time. In the Northern Hemisphere, it is observable in good condition in 2020, however, it will be unobservable in 2021. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 28  21 14.32  -30 59.1   3.307   3.049    66   15.9  18:18 ( 21, 20)  
Dec.  5  21 16.21  -31 48.2   3.386   3.015    59   15.9  18:18 ( 26, 18)

* 162P/Siding Spring

Now it is 15.1 mag (Nov. 9, Toshihiko Ikemura, Hirohisa Sato). It stays 15-16 mag until winter. In the Northern Hemisphere, it stays observable in good condition for a long time after this. In the Southern Hemisphere, it will be getting lower after this, and it will be unobservable in January. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 28  22 23.96  -17 46.2   0.921   1.294    85   15.9  18:18 (  7, 37)  
Dec.  5  22 38.98  -12  6.3   0.946   1.290    83   16.0  18:18 ( 12, 43)

* C/2019 U6 ( Lemmon )

It brightened up to 6.0 mag in June (June 13, Marco Goiato). Now it is fading. It has already faded down to 15.7 mag (Nov. 12, Toshihiko Ikemura, Hirohisa Sato). In the Northern Hemisphere, it stays observable for a long time until it fades out. In the Southern Hemisphere, it will never be observable again. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 28  18 26.19   24  1.7   3.088   2.653    55   16.0  18:18 ( 98, 33)  
Dec.  5  18 39.44   24 25.3   3.193   2.737    54   16.2  18:18 (100, 30)

* C/2019 K7 ( Smith )

Now it is 15.6 mag (Nov. 5, Sandor Szabo). It stays 15-16 mag for a long time until 2021. In the Northern Hemisphere, it stays observable in good condition for a long time, although it becomes very low temporarily from December to January. In the Southern Hemisphere, it will be observable in the extremely low sky only in next spring. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 28  18 34.98   19 30.7   5.194   4.669    53   16.0  18:18 ( 92, 33)  
Dec.  5  18 38.07   19 51.7   5.253   4.685    50   16.0  18:18 ( 96, 28)

* P/2020 U1 ( Lemmon )

First return of a new periodic comet which brightened up to 17 mag in 2013. Now it is 17.2 mag (Nov. 10, Toshihiko Ikemura, Hirohisa Sato). It will brighten up to 16 mag and will be observable in good condition in winter. In the Southern Hemisphere, it locates low until December. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 28  10 23.61   35  1.8   0.484   1.176   100   16.1   5:17 (267, 82)  
Dec.  5  11  2.85   31 36.8   0.471   1.152    98   16.0   5:23 (288, 80)

* 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 16.5 mag (Nov. 23, 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)  
Nov. 28   1 28.38  -31 40.1   4.242   4.723   113   16.3  20:57 (  0, 24)  
Dec.  5   1 23.45  -30 16.4   4.362   4.764   108   16.4  20:25 (  0, 25)

* 84P/Giclas

Now it is 16.0 mag (Nov. 10, Toshihiko Ikemura, Hirohisa Sato). It stays 16 mag until winter, and observable in good condition. It locates somewhat low in the Southern Hemisphere. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 28   8 43.13   17 50.0   1.701   2.327   117   16.4   4:15 (  0, 73)  
Dec.  5   8 43.43   18 11.6   1.661   2.364   124   16.5   3:48 (  0, 73)

* 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 16.5 mag (Nov. 8, Toshihiko Ikemura, Hirohisa Sato). But it is still bright visually as 14.8 mag (Nov. 5, Sandor Szabo). 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 28  23 42.84    2 48.4   6.284   6.704   111   16.4  19:12 (  0, 58)  
Dec.  5  23 42.34    3  3.9   6.439   6.747   104   16.5  18:44 (  0, 58)

* C/2019 T3 ( ATLAS )

Now it is 16.4 mag (Nov. 9, 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)  
Nov. 28  22  3.81   57 39.4   5.632   5.984   106   16.5  18:18 (165, 66)  
Dec.  5  22  4.39   55 52.0   5.684   5.979   102   16.5  18:18 (155, 66)

* C/2020 R4 ( ATLAS )

Now it is 17.3 mag (Nov. 10, Toshihiko Ikemura, Hirohisa Sato). It will approach to Earth down to 0.46 a.u. in 2021 April, and it is expected to brighten up to 12.5 mag and to be observable in excellent condition. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 28  22  2.64  -22  6.1   1.709   1.806    79   16.7  18:18 ( 13, 32)  
Dec.  5  21 48.71  -21 35.0   1.806   1.724    69   16.6  18:18 ( 24, 30)

* C/2019 O3 ( Palomar )

Now it is 16.6 mag (Nov. 9, Toshihiko Ikemura, Hirohisa Sato). It stays at 16-17 mag from 2020 to 2021. In the Northern Hemisphere, it stays observable in good condition for a long time. It is not observable in the Southern Hemisphere. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 28  19  3.55   29 20.7   9.215   8.839    64   16.8  18:18 (100, 43)  
Dec.  5  19  5.92   29 23.1   9.261   8.836    61   16.8  18:18 (103, 38)

* 117P/Helin-Roman-Alu 1

Now it is 16.1 mag (Nov. 13, 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)  
Nov. 28  13  0.88    0 27.3   4.511   3.986    52   17.1   5:17 (296, 33)  
Dec.  5  13  7.15   -0  8.0   4.408   3.971    57   17.0   5:23 (303, 37)

* C/2019 C1 ( ATLAS )

It brightened up to 16.1 mag in last winter (Mar. 18, 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)  
Nov. 28  12 49.48  -19  5.7   7.339   6.723    48   17.1   5:17 (314, 20)  
Dec.  5  12 53.63  -19 22.7   7.263   6.733    54   17.1   5:23 (320, 24)

* 397P/2020 M2 ( Lemmon )

First return of a new periodic comet which brightened up to 17.5 mag in 2012. Now it is 17.2 mag (Nov. 13, D. Buczynski). 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)  
Nov. 28   4 58.99   38 44.0   1.597   2.548   160   17.1   0:32 (180, 86)  
Dec.  5   4 51.86   38 49.8   1.609   2.569   163   17.2  23:53 (180, 86)

* 277P/LINEAR

Now it is 16.6 mag (Nov. 18, Thomas Lehmann). It will brighten up to 17 mag in December. It is observable in good condition. It locates somewhat low in the Southern Hemisphere. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 28   2 14.11   36 37.8   1.010   1.926   149   17.2  21:43 (180, 88)  
Dec.  5   2 14.90   34 43.1   1.026   1.917   144   17.1  21:17 (  0, 90)

* 173P/Mueller 5

Now it is 17.1 mag (Oct. 25, D. Buczynski). 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)  
Nov. 28   5 52.60   17 13.0   3.588   4.512   156   17.3   1:25 (  0, 72)  
Dec.  5   5 48.78   17 24.7   3.545   4.502   164   17.3   0:54 (  0, 72)

* C/2020 M5 ( ATLAS )

Now it is 17.2 mag (Oct. 25, A. Mickleburgh). It stays 15-16 mag for a long time from 2021 spring to 2022 spring. It stays observable for a long time in the Northern Hemisphere. In the Southern Hemipsphere, it is not observable until the end of 2021. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 28  19 25.99   44 45.8   4.015   3.947    78   17.5  18:18 (120, 51)  
Dec.  5  19 27.58   44 13.2   4.023   3.905    76   17.4  18:18 (120, 46)

* P/2020 V1 ( LONEOS-Hill )

First return of a new periodic comet which brightened up to 14-15 mag in 2006. Now it is 17.8 mag (Nov. 23, Toshihiko Ikemura, Hirohisa Sato). It is expected to brighten up to 15-16 mag from February to March, and it will be observable in good condition. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 28  10 33.49    2 55.2   1.647   1.876    87   17.7   5:17 (338, 56)  
Dec.  5  10 48.77    2 22.2   1.560   1.850    90   17.4   5:23 (346, 57)

* 257P/Catalina

Now it is 17.3 mag (Nov. 9, Toshihiko Ikemura, Hirohisa Sato). It will be fading after this, and will be fainter than 18 mag in December. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 28  21 48.67   -0 51.8   2.113   2.225    83   17.6  18:18 ( 24, 52)  
Dec.  5  22  1.17   -0 55.8   2.204   2.239    79   17.7  18:18 ( 30, 50)

* 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 is not observable until 2022. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 28   3 39.50  -50  7.6   6.246   6.620   108   17.7  23:07 (  0,  5)  
Dec.  5   3 31.44  -50 22.1   6.240   6.570   105   17.7  22:32 (  0,  5)

* C/2020 T2 ( Palomar )

Now it is 17.5 mag (Nov. 12, 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. In the Southern Hemisphere, it is not observable until late December. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 28  12 23.99   25 27.9   3.428   3.282    73   17.8   5:17 (275, 55)  
Dec.  5  12 33.84   25 17.9   3.290   3.224    77   17.7   5:23 (279, 59)

* 178P/Hug-Bell

Now it is 17.0 mag (Nov. 9, Toshihiko Ikemura, Hirohisa Sato). It stays observable at 17.5-18 mag in good condition until winter. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 28   7 56.54   18 55.0   1.443   2.197   128   17.7   3:29 (  0, 74)  
Dec.  5   7 55.69   19 36.9   1.410   2.226   135   17.7   3:00 (  0, 75)

* 115P/Maury

It brightened up to 14.6 mag in summer (July 18, Thomas Lehmann). Now it is 17.4 mag (Nov. 8, Toshihiko Ikemura, Hirohisa Sato). It stays observable until December when it becomes fainter than 18 mag. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 28  21 23.49  -12 42.1   2.379   2.299    73   17.8  18:18 ( 26, 38)  
Dec.  5  21 36.37  -12 10.9   2.482   2.325    69   18.0  18:18 ( 31, 37)

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