Weekly Information about Bright Comets (2018 Nov. 17: South)

Japanese version
Home page
Updated on November 20, 2018
Last week North Next week

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.

---------------------------------------------------------------------

* 46P/Wirtanen

Now it is very bright as 6.6 mag (Nov. 11, Chris Wyatt). It will approach to Earth down to 0.08 a.u. in December, and it is expected to brighten up to 3 mag. In the Northern Hemisphere, it locates low until November, but it stays observable in excellent condition after December. In the Southern Hemisphere, it is observable in good condition until mid December when it brightens up to 3 mag. But it becomes unobservable after that.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 17   2  7.78  -30 54.4   0.189   1.112   126    6.2  22:22 (180, 86)  
Nov. 24   2 17.23  -27  5.1   0.154   1.086   126    5.4  22:05 (180, 82)  

* C/2018 V1 ( Machholz-Fujikawa-Iwamoto )

New bright comet discovered by three amateur comet hunters. Now it is 8.9 mag (Nov. 16, Katsumi Yoshimoto). It brightened rapidly from 10 mag up to 8 mag just after the discovery. But after that, the brightness evolution became slow. In the Northern Hemisphere, it is observable in the morning low sky until mid November. It can be observable in the extreme low sky until around Nov. 24. It can be observable in the extreme low sky in the evening at 5.5-7 mag from around Dec. 5 to around Dec. 15. In the Southern Hemisphere, it is not observable now. But it will appear in the morning sky at 14 mag in February, then it stays observable in good condition while the comet will be fading gradually.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 17  13 20.56   -0 59.3   0.865   0.584    35    7.3   3:06 (275, -5)  
Nov. 24  14 52.22   -0 57.8   0.691   0.465    25    5.9   3:00 (285,-19)  

* 38P/Stephan-Oterma

Now it is bright as 9.3 mag (Nov. 11, Marco Goiato). It stays 9-10 mag until January. In the Northern Hemisphere, it stays observable in good condition for a long time until it fades out. In the Southern Hemispehre, it is observable in good condition until autumn, but it will be low in winter.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 17   7 44.47   23 27.5   0.841   1.590   120    9.2   3:06 (195, 30)  
Nov. 24   7 57.50   25 55.6   0.811   1.597   124    9.1   3:00 (192, 28)  

* 64P/Swift-Gehrels

Now it is very bright as 9.0 mag (Nov. 16, Maik Meyer). 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)  
Nov. 17   1 12.74   36 17.4   0.470   1.402   145    9.2  21:28 (180, 19)  
Nov. 24   1 26.90   35 31.4   0.491   1.414   143    9.4  21:15 (180, 19)  

* 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 10.7 mag (Nov. 11, 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 in 2019 when the comet fades out down to 16 mag.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 17  15 13.10  -72 39.8   2.934   2.483    53   10.8   3:06 (345, 24)  
Nov. 24  15 26.25  -74 48.2   2.961   2.520    54   10.9   3:00 (346, 26)  

* C/2018 L2 ( ATLAS )

Now it is very bright as 10.8 mag (Oct. 12, Paul Camilleri). It stays at 10-11 mag until winter. 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)  
Nov. 17  16 55.34    5 26.5   2.474   1.724    32   10.9  20:23 ( 84,-18)  
Nov. 24  17 11.81    7 11.5   2.455   1.715    33   10.8  20:33 ( 82,-23)  

* 21P/Giacobini-Zinner

It brightened up to 6.8 mag in September (Sept. 17, Seiichi Yoshida). Now it is fading rapidly. It has already faded down to 11.1 mag (Nov. 11, Marco Goiato). 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)  
Nov. 17   7 21.35  -35 25.8   0.768   1.377   102   11.6   3:06 (276, 83)  
Nov. 24   7 15.40  -37 29.0   0.814   1.439   105   12.1   3:00 (338, 87)  

* C/2016 N6 ( PanSTARRS )

Now it is 11.9 mag (Nov. 3, Seiichi Yoshida). It stays 12 mag for a long time until spring.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 17   8 41.80   -3 17.8   2.623   2.956    99   12.2   3:06 (226, 49)  
Nov. 24   8 33.55   -5 50.8   2.542   2.987   107   12.2   3:00 (218, 55)  

* C/2016 R2 ( PanSTARRS )

Now it is 12.8 mag (Nov. 14, Sandor Szabo). It will be fading slowly after this. In the Northern Hemisphere, it will be getting higher gradually after this, and it will be observable in good condition. In the Southern Hemisphere, it is not observable until summer in 2019.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 17  14 10.54   42  0.8   3.598   3.278    63   12.5   3:06 (240,-36)  
Nov. 24  14 23.90   41 30.0   3.605   3.321    65   12.5   3:00 (240,-35)  

* 78P/Gehrels 2

Now it is 13.5 mag (Nov. 1, Paul Camilleri). It stays at 12-13 mag for a long time until autumn in 2019.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 17  21 45.77   -8 45.9   2.046   2.293    91   13.4  20:23 (120, 48)  
Nov. 24  21 54.13   -8 26.1   2.105   2.268    86   13.3  20:33 (114, 43)  

* 29P/Schwassmann-Wachmann 1

Now it is bright as 12.9 mag (Nov. 11, Chris Wyatt). Diffuse.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 17  22 44.99   -1  1.7   5.389   5.769   107   13.4  20:23 (146, 51)  
Nov. 24  22 45.89   -1  0.1   5.497   5.769   101   13.4  20:33 (134, 46)  

* C/2018 N2 ( ASASSN )

Now it is 13.8 mag (Nov. 1, Paul Camilleri). It will brighten up to 10-11 mag in autumn in 2019. It stays observable in good condition for a while in the Southern Hemisphere. In the Northern Hemisphere, it stays extremely low for a long time.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 17   1 37.62  -44 21.7   4.124   4.587   111   13.7  21:51 (  0, 81)  
Nov. 24   1 29.41  -43  7.9   4.139   4.542   107   13.7  21:16 (  0, 82)  

* C/2017 M4 ( ATLAS )

Now it is 14.0 mag (Oct. 7, Seiichi Yoshida). It stays 13-14 mag until summer in 2019. It is not observable now in the Southern Hemisphere. It will be unobservable in November also in the Northeren Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 17  16 41.00   -1 45.4   4.177   3.305    24   14.3  20:23 ( 75,-17)  
Nov. 24  16 45.34   -3 15.7   4.198   3.294    20   14.3  20:33 ( 69,-22)  

* (944) Hidalgo

Now it is 14.0 mag (Nov. 3, Seiichi Yoshida). It stays at 14 mag until winter. It is observable in excellent condition in the Northern Hemisphere. In the Southern Hemisphere, it is not observable until summer in 2019.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 17  10 12.20   74 49.9   1.450   1.959   105   14.3   3:06 (193,-25)  
Nov. 24  10 55.57   75 51.2   1.448   1.968   106   14.3   3:00 (193,-26)  

* C/2015 O1 ( PanSTARRS )

Now it is 13.5 mag (Nov. 14, Sandor Szabo). It will be observable at 13-14 mag for a long time from 2017 to 2018. 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)  
Nov. 17  12  0.68   35  6.6   4.609   4.422    72   14.4   3:06 (235,-11)  
Nov. 24  11 59.47   35 31.2   4.530   4.454    79   14.4   3:00 (232, -7)  

* 60P/Tsuchinshan 2

Now it is 14.8 mag (Nov. 10, Toshihiko Ikemura, Hirohisa Sato). Brightening very rapidly. It is observable at 14 mag in excellent condition until March.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 17   9 54.19   10 59.1   1.354   1.640    87   14.7   3:06 (232, 27)  
Nov. 24  10 10.00    9  9.9   1.296   1.632    90   14.5   3:00 (233, 29)  

* 300P/Catalina

Now it is 15.4 mag (Oct. 7, iTelescope Observatory, Siding Spring). It locates low. But it brightens up to 14.5 mag from October to November.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 17  18 59.07  -26 56.0   1.086   0.865    48   14.7  20:23 ( 74, 25)  
Nov. 24  19 44.29  -26  4.5   1.057   0.900    52   15.1  20:33 ( 76, 27)  

* 48P/Johnson

Now it is 13.9 mag (Nov. 8, Chris Wyatt). It will be fading after this. It stays observable in excellent condition for a while 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)  
Nov. 17  23  0.23  -22 35.5   1.697   2.143   102   14.7  20:23 (126, 71)  
Nov. 24  23  8.59  -21 12.7   1.789   2.162    98   15.0  20:33 (117, 65)  

* 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). Now it is not observable. It will appear in the morning sky in late December.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 17  15  7.71  -24 18.1   3.139   2.162     7   14.8   3:06 (310,-11)  
Nov. 24  15 18.12  -23 45.2   3.220   2.252     9   15.1   3:00 (308, -9)  

* 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)  
Nov. 17  17  0.45  -68 40.3   4.512   3.979    51   15.0  20:23 ( 23, 27)  
Nov. 24  17 27.56  -68 33.6   4.529   3.969    50   15.0  20:33 ( 23, 26)  

* 123P/West-Hartley

Now it is 16.5 mag (Oct. 4, I. Dulevich, S. Plaksa). It will brighten up to 13-14 mag in winter, and it will be observable in excellent condition. It locates low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 17  10 19.70   27 45.4   2.022   2.218    87   15.3   3:06 (226, 10)  
Nov. 24  10 32.11   27 32.2   1.935   2.203    91   15.1   3:00 (224, 12)  

* C/2017 S3 ( PanSTARRS )

It brightened rapidly in outburst up to 6.9 mag (July 19, Maik Meyer). Then it faded down to 9.3 mag (Aug. 2, Katsumi Yoshimoto). It approached to Sun down to 0.2 a.u. in August, and it was expected to brighten up to 3 mag. However, it must have been already disintegrated. In the Northern Hemisphere, it is appearing in the morning sky. But it will be too faint to observe.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 17  13 24.91   24 17.3   2.518   2.070    52   15.2   3:06 (254,-21)  
Nov. 24  13 33.46   25 55.8   2.537   2.181    57   15.4   3:00 (251,-19)  

* 26P/Grigg-Skjellerup

It must have brightened up to 13 mag in October. But it is not observable at all.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 17  16 29.71  -12  6.9   2.154   1.237    16   15.2  20:23 ( 66,-12)  
Nov. 24  16 56.55  -12  1.8   2.197   1.282    16   16.4  20:33 ( 64,-14)  

* C/2018 N1 ( NEOWISE )

It approached to Earth down to 0.3 a.u., and brightened up to 8.3 mag in July (July 22, Juan Jose Gonzalez). Now it is fading. It has faded down to 13.2 mag in September (Sept. 24, Thomas Lehmann). Now it is not observable. It will appear in the morning sky again in December in the Northern Hemisphere, or in January in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 17  15 20.63   -5 13.9   2.962   2.015    13   15.4   3:06 (299,-27)  
Nov. 24  15 22.77   -4 51.1   3.006   2.087    17   15.6   3:00 (295,-23)  

* C/2018 A3 ( ATLAS )

Now it is 15.8 mag (Oct. 13, S. Shurpakov). It will brighten up to 15 mag in winter. 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)  
Nov. 17  11 19.37   48 26.7   3.222   3.321    87   15.8   3:06 (219,-13)  
Nov. 24  11 18.99   51  5.1   3.096   3.311    93   15.7   3:00 (215,-12)  

* C/2017 T2 ( PanSTARRS )

Now it is 16.0 mag (Oct. 11, C. Bell). It is expected to brighten up to 7-8 mag in 2020. In 2018, it will be observable at 15-16 mag in good condition from autum to winter.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 17   3 34.24   -6  2.4   5.133   6.044   155   15.9  23:48 (180, 61)  
Nov. 24   3 29.47   -5 58.4   5.090   5.985   152   15.8  23:16 (180, 61)  

* 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 16.6 mag (Nov. 15, 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)  
Nov. 17   8 10.61   65 14.4   5.463   5.950   115   16.5   3:06 (189,-11)  
Nov. 24   8  2.05   66 46.9   5.419   5.973   119   16.5   3:00 (185,-12)  

* 59P/Kearns-Kwee

Now it is 17.4 mag (Nov. 14, Toshihiko Ikemura, Hirohisa Sato). It is observable at 16.5 mag in good condition from autumn to winter. But it is fainter than this ephemeris recently. It locates somewhat low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 17   8 29.96   25 35.2   1.871   2.405   110   16.6   3:06 (205, 25)  
Nov. 24   8 33.87   25 12.5   1.806   2.416   116   16.5   3:00 (201, 27)  

* C/2018 A6 ( Gibbs )

It stays 15 mag for a long time in 2019. In the Southern Hemisphere, it is observable in excellent condition. In the Northern Hemisphere, it is observable in low sky until early January, but it will be unobservable after that.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 17  11 23.14  -25 45.4   4.114   3.663    56   16.7   3:06 (281, 31)  
Nov. 24  11 25.93  -27 53.3   3.996   3.631    61   16.6   3:00 (281, 36)  

* C/2010 U3 ( Boattini )

Now it is 17.0 mag (Oct. 12, D. Buczynski). 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)  
Nov. 17  11 29.20   68 36.3   8.285   8.467    97   16.7   3:06 (202,-26)  
Nov. 24  11 35.86   68 58.0   8.225   8.464   100   16.7   3:00 (201,-25)  

* C/2015 V2 ( Johnson )

It brightened up to 7 mag from May to June in 2017. Now it is fading. It has already faded down to 16.0 mag (Sept. 30, J. Drummond). In the Southern Hemisphere, it stays observable for a long time after this. It will never be observable again in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 17   0 57.85  -52 17.4   5.655   5.936   101   16.7  21:12 (  0, 73)  
Nov. 24   0 54.71  -51 27.2   5.781   5.995    97   16.8  20:41 (  0, 74)  

* 171P/Spahr

Now it is 17.2 mag (Nov. 14, Toshihiko Ikemura, Hirohisa Sato). It will brighten rapidly. It was expected to be observable at 15.5 mag in good condition in winter. But it is somewhat fainter than expected.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 17   4 56.16   -6 40.5   0.942   1.848   146   17.0   1:14 (180, 62)  
Nov. 24   4 51.45   -5 35.5   0.905   1.831   150   16.9   0:42 (180, 61)  

* 65P/Gunn

Now it is 17.6 mag (Nov. 11, Toshihiko Ikemura, Hirohisa Sato). 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)  
Nov. 17  22 50.31  -17 42.9   3.100   3.454   102   16.9  20:23 (130, 65)  
Nov. 24  22 53.13  -17  1.7   3.215   3.469    96   17.0  20:33 (119, 59)  

* A/2017 U7

Asteroid, but it brightened rapidly. Now it is 16.4 mag (Oct. 9, P. Camilleri, J. Oey).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 17  22 17.86  -44 19.5   6.732   6.727    85   17.0  20:23 ( 58, 67)  
Nov. 24  22 14.46  -43 45.8   6.830   6.713    79   17.0  20:33 ( 62, 60)  

* 164P/Christensen

Now it is 17.5 mag (Oct. 10, D. Buczynski). It is observable at 17 mag in good condition in winter. It locates low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 17  10 42.55   20  1.5   2.248   2.293    79   17.1   3:06 (235, 12)  
Nov. 24  10 51.48   20  7.4   2.200   2.332    85   17.0   3:00 (233, 14)  

* (3552) Don Quixote

Now it is 16.2 mag (Sept. 13, ATLAS-MLO, Mauna Loa). It will be fading after this, and will be fainter than 18 mag in December. It is observable in good condition in the Northern Hemisphere. It is not observable in the Southern Hemisphere. Its cometary activity was observed on Mar. 26 (M. Mommert, D. Polishook, N. Moskovitz).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 17   1  5.50   52 10.9   1.712   2.524   136   17.0  21:20 (180,  3)  
Nov. 24   0 59.49   51  1.3   1.797   2.581   133   17.2  20:46 (180,  4)  

* 369P/2018 P1 ( Hill )

First return of a new periodic comet which brightened up to 17.5 mag in 2010. Now it is 17.2 mag (Nov. 14, Toshihiko Ikemura, Hirohisa Sato). It was expected to brighten up to 16.5 mag from November to December. But actually, it is a bit fainter than expected. 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)  
Nov. 17   6 14.71   31 57.1   1.115   1.980   140   17.2   2:32 (180, 23)  
Nov. 24   6 14.15   33  5.9   1.088   1.991   147   17.2   2:04 (180, 22)  

* C/2014 B1 ( Schwartz )

Now it is 17.0 mag (Nov. 14, Toshihiko Ikemura, Hirohisa Sato). Fading slowly. It stays observable at 17 mag in good condition until summer in 2019.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 17  11 33.58    5 45.2  10.268   9.854    62   17.2   3:06 (254, 12)  
Nov. 24  11 35.81    5 42.1  10.170   9.863    69   17.2   3:00 (251, 16)  

* 368P/2018 L3 ( NEAT )

First return of a new periodic comet which brightened up to 16.5 mag in 2005. Now it is 17.3 mag (Nov. 15, Toshihiko Ikemura, Hirohisa Sato). It will be fading after this, and will be fainter than 18 mag in December. It locates low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 17   1 48.29   28  2.2   1.214   2.153   155   17.3  22:03 (180, 27)  
Nov. 24   1 48.90   26 27.3   1.260   2.172   150   17.4  21:36 (180, 29)  

* C/2015 XY1 ( Lemmon )

Now it is 17.4 mag (Nov. 10, Toshihiko Ikemura, Hirohisa Sato). It was observed at 17 mag in last winter. It will be observable in good condition at 17.5 mag also in this winter.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 17   5 19.44    6 49.2   7.149   8.023   150   17.4   1:37 (180, 48)  
Nov. 24   5 14.15    6 23.5   7.114   8.029   156   17.4   1:05 (180, 49)  

* 243P/NEAT

It brightened rapidly. Now it is 17.0 mag (Nov. 10, 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. 17   1 44.61    0 45.4   1.615   2.514   148   17.4  21:59 (180, 54)  
Nov. 24   1 42.08    1  5.9   1.673   2.524   141   17.5  21:29 (180, 54)  

* 361P/2017 S4 ( Spacewatch )

Now it is 17.1 mag (Oct. 13, Alexander Baransky). It was observed at 18 mag in last winter. It will be observable in good condition at 17.5 mag also in this winter.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 17   7 28.32    4 46.5   2.312   2.931   119   17.5   3:06 (195, 49)  
Nov. 24   7 28.30    4  4.9   2.254   2.946   126   17.5   3:00 (187, 51)  

* C/2014 OE4 ( PanSTARRS )

Now it is 17.0 mag (Nov. 11, Toshihiko Ikemura, Hirohisa Sato). It will be fading gradually after this, and it will be fainter than 18 mag in winter. In the Northern Hemisphere, it stays observable in good condition for a long time. 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. 17  22 40.74   71 20.1   7.400   7.849   113   17.5  20:23 (173,-18)  
Nov. 24  22 44.16   70 22.7   7.436   7.876   113   17.5  20:33 (170,-18)  

* C/2015 V1 ( PanSTARRS )

Now it is 17.0 mag (Oct. 12, ATLAS-MLO, Mauna Loa). Fading now. It stays observable in good condition for a long time after this in the Southern Hemisphere. It stays low in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 17  22 41.32  -39 53.0   4.952   5.071    91   17.5  20:23 ( 68, 72)  
Nov. 24  22 37.91  -39 48.8   5.101   5.101    84   17.6  20:33 ( 70, 64)  

* C/2018 E1 ( ATLAS )

Now it is 18.0 mag (Nov. 10, Toshihiko Ikemura, Hirohisa Sato). It brightened up to 16 mag in 2018 spring. It stays observable in good condition until 2019 spring when the comet will be fainter than 18 mag.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 17  10 44.95    3 20.0   3.598   3.441    72   17.5   3:06 (248, 23)  
Nov. 24  10 48.90    4  7.5   3.527   3.482    79   17.5   3:00 (244, 26)  

* (3200) Phaethon

Now it is 18.1 mag (Oct. 15, Kunihiro Shima). Although it is around the aphelion, it is observable at 17.5 mag in November, in good condition in the Northern Hemisphere. It locates very low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 17   2 46.77   38 14.0   1.428   2.377   158   17.5  23:00 (180, 17)  
Nov. 24   2 29.35   36 28.5   1.433   2.365   155   17.6  22:15 (180, 19)  

* P/2018 P3 ( PanSTARRS )

It brightened very rapidly. Now it is 17.0 mag (Nov. 10, Toshihiko Ikemura, Hirohisa Sato). It seems to stay bright for a while.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 17   0  1.28   -9 16.8   1.054   1.786   121   17.6  20:23 (176, 64)  
Nov. 24   0  7.01   -7 23.4   1.119   1.797   117   17.8  20:33 (160, 61)  

* (37117) Narcissus

Peculiar asteroid moving along a cometary orbit. Now it is 17.2 mag (Sept. 9, M. Jaeger, et al.). It is observable at 17.5 mag in good condition in November. It locates somewhat low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 17   3 33.51   23 47.2   2.114   3.100   174   17.6  23:47 (180, 31)  
Nov. 24   3 29.59   23  0.4   2.111   3.094   173   17.6  23:16 (180, 32)  

* 240P/NEAT

It brightened very rapidly up to 13.8 mag in August in 2017 (Aug. 22, Kunihiro Shima). Now it is 16.9 mag (Oct. 11, D. Buczynski). 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)  
Nov. 17  10 42.40   29 25.5   2.462   2.555    83   17.6   3:06 (228,  5)  
Nov. 24  10 51.74   29 50.3   2.404   2.582    88   17.6   3:00 (226,  7)  

* 159P/LONEOS

Now it is 17.2 mag (Nov. 14, Toshihiko Ikemura, Hirohisa Sato). It is observable at 17.5 mag until January, in good condition in the Northern Hemisphere. It locates very low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 17   6 36.54   39 24.0   2.996   3.757   134   17.7   2:54 (180, 16)  
Nov. 24   6 33.85   40 14.5   2.946   3.767   141   17.7   2:24 (180, 15)  

* 137P/Shoemaker-Levy 2

Now it is 17.0 mag (Nov. 6, Toshihiko Ikemura, Hirohisa Sato). It will be fading after this. It will be fainter than 18 mag in December.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 17  22  8.31   -6 25.2   1.553   1.946    97   17.7  20:23 (129, 50)  
Nov. 24  22 19.71   -5 46.2   1.613   1.939    93   17.8  20:33 (123, 45)  

* 373P/2018 R2 ( Rinner )

First return of a new periodic comet which brightened up to 16 mag in 2011. It must be brightening rapidly. It is observable at 17.5 mag in good condition in winter.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 17   2 48.31   17 36.1   1.538   2.518   170   18.0  23:02 (180, 37)  
Nov. 24   2 43.87   16 27.8   1.542   2.500   162   17.9  22:30 (180, 39)  

* C/2011 KP36 ( Spacewatch )

Now it is 17.7 mag (Nov. 10, Toshihiko Ikemura, Hirohisa Sato). It will be fainter than 18 mag in December.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 17   5  6.24    1 38.9   7.008   7.883   150   17.9   1:24 (180, 53)  
Nov. 24   5  3.95    1 28.9   7.012   7.917   154   17.9   0:54 (180, 53)  

* 247P/LINEAR

Now it is 18.8 mag (Oct. 8, A. Martin, K. Kleemann-Boeker). It is observable at 17 mag in good condition in winter in the Northern Hemisphere. It locates very low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 17   9  9.08   30 24.2   0.921   1.499   103   18.1   3:06 (211, 17)  
Nov. 24   9 31.10   31  0.5   0.883   1.492   105   17.9   3:00 (211, 16)  

* 232P/Hill

It was expected to be observable at 17.5 mag in good condition in winter in the Northern Hemisphere. But actually, it is so faint as 21.0 mag (Oct. 5, K. Sarneczky, et. al). It locates low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 17   5 56.09   31 21.7   2.233   3.091   144   18.0   2:14 (180, 24)  
Nov. 24   5 52.57   32  1.0   2.175   3.081   151   17.9   1:43 (180, 23)  

* 371P/2018 R1 ( LINEAR-Skiff )

Return of a new periodic comet which brightened up to 17 mag in 2001. Now it is 19.2 mag (Oct. 12, K. Hills). It was predicted to brighten up to 17.5 mag from September to November. But actually, it is fainter than predicted by 2 mag.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 17   1 27.94   -8 25.9   1.370   2.218   139   19.6  21:42 (180, 63)  
Nov. 24   1 25.87   -6 54.2   1.427   2.228   133   19.7  21:13 (180, 62)  

---------------------------------------------------------------------

Copyright(C) Seiichi Yoshida (comet@aerith.net). All rights reserved.