Weekly Information about Bright Comets (2015 Oct. 31: North)

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 Updated on November 3, 2015
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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/2013 US10 ( Catalina )

Now it is 6.5 mag (Oct. 13, Marco Goiato). It was expected to brighten up to 4-5 mag from autumn to winter. However, the brightness evolution has stopped in September. Now it is not observable. In the Northern Hemisphere, it will appear in the morning sky in late November, then it will be observable in excellent condition. In the Southern Hemisphere, it is hardly observable after this. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 31  14 26.51  -25 41.7   1.822   0.875    11    6.3  18:32 ( 74,-23)  
Nov.  7  14 24.41  -22 50.8   1.807   0.839     8    6.2   4:59 (286,-17)

* C/2014 S2 ( PanSTARRS )

It brightened very rapidly. Now it is so bright as 9.2 mag (Nov. 1, Juan Jose Gonzalez). It is observable at 9-10 mag until next spring in excellent condition in the Northern Hemisphere. It keeps unobservable in the Southern Hemisphere. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 31  16 19.99   76 34.1   1.872   2.152    92    9.5  18:32 (163, 38)  
Nov.  7  16 24.45   73 21.3   1.878   2.136    90    9.4  18:27 (159, 37)

* C/2013 X1 ( PanSTARRS )

Now it is so bright as 10.5 mag (Nov. 1, Juan Jose Gonzalez). It will pass close to the earth from spring to summer in 2016, and it is expected to be observable at 6-7 mag in good condition. In the Northern Hemispehre, it keeps observable in excellent condition until winter. In the Southern Hemisphere, it keeps very low until winter. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 31   4 21.18   45 16.2   1.879   2.710   139   11.2   1:48 (180, 80)  
Nov.  7   3 50.16   45 32.1   1.745   2.636   147   10.9   0:50 (180, 79)

* 22P/Kopff

Now it is very bright as 9.5 mag (Oct. 14, Marco Goiato). In the Northern Hemisphere, it keeps very low in the evening until mid December. It will be getting lower gradually after this even in the Southern Hemisphere. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 31  17 21.86  -22 20.2   2.110   1.559    44   11.0  18:32 ( 52, 11)  
Nov.  7  17 45.00  -22 51.2   2.144   1.564    42   11.0  18:27 ( 51, 11)

* 10P/Tempel 2

It brightened very rapidly. Now it is very bright as 11.1 mag (Oct. 9, Chris Wyatt). It keeps 11-13 mag until February. But it keeps very low in the Northern Hemisphere. It will be getting lower gradually after this even in the Southern Hemisphere. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 31  17 57.55  -24 18.4   1.794   1.426    52   11.3  18:32 ( 44, 15)  
Nov.  7  18 22.09  -25  0.6   1.817   1.420    50   11.2  18:27 ( 43, 15)

* C/2014 Q2 ( Lovejoy )

It brightened up to 3.7 mag and became a naked eye comet in mid January in 2015 (Jan. 13, Marek Biely). Now it is fading. But it is bright as 11.4 mag still now (Oct. 5, Katsumi Yoshimoto). In the Northern Hemisphere, it keeps observable for a long time until the comet fades out. It is not observable in the Southern Hemisphere. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 31  16 48.50   26 34.3   4.255   3.764    54   12.2  18:32 (100, 34)  
Nov.  7  16 56.04   25 18.9   4.364   3.835    52   12.3  18:27 (101, 31)

* 67P/Churyumov-Gerasimenko

Now it is bright as 11.7 mag (Oct. 15, Juan Jose Gonzalez). It will be fading slowly after this. In the Northern Hemisphere, it keeps observable in good condition. In the Southern Hemisphere, it keeps low until November. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 31  10 46.05   14  8.3   1.806   1.560    59   12.5   4:54 (283, 41)  
Nov.  7  11  1.24   12 56.4   1.799   1.608    62   12.7   4:59 (287, 44)

* C/2014 W2 ( PanSTARRS )

Now it is bright as 12.8 mag (Oct. 15, Juan Jose Gonzalez). It keeps 13 mag for a long time from 2015 autumn to 2016 summer. In the Northern Hemispehre, it keeps observable in good condition for a long time. It keeps unobservable in the Southern Hemisphere. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 31   8 28.57   76 39.3   2.618   3.001   102   13.6   4:54 (185, 48)  
Nov.  7   9  5.21   79 59.5   2.554   2.969   104   13.5   4:59 (184, 45)

* 249P/LINEAR

It tends to brighten very rapidly around the perihelion passage. It will brighten up to 11 mag from November to December. It will appear in the evening sky in early December, then it will fade out very rapidly. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 31  14 39.71  -16 10.0   1.731   0.749     5   14.7  18:32 ( 80,-15)  
Nov.  7  15 17.15  -17 56.4   1.622   0.653     7   13.6  18:27 ( 77,-13)

* 88P/Howell

It is fading, but bright as 13.2 mag still now (Oct. 13, Katsumi Yoshimoto). It keeps observable until March when the comet becomes fainter than 18 mag. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 31   2 12.38   10 28.3   1.435   2.427   176   13.7  23:34 (  0, 66)  
Nov.  7   2  5.05   10  5.9   1.493   2.472   168   13.9  22:59 (  0, 65)

* C/2015 F4 ( Jacques )

It brightened rapidly up to 10.4 mag from July to August (July 18, Maik Meyer). Now it is fading, but it is bright as 13.2 mag still now (Oct. 11, Seiichi Yoshida). It is observable in good condition in the Northern Hemisphere. It is not observable in the Southern Hemisphere. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 31  19 46.90   46 13.3   1.610   1.958    94   13.8  18:32 (132, 71)  
Nov.  7  20  2.69   46 21.6   1.673   2.007    94   14.1  18:27 (131, 70)

* 29P/Schwassmann-Wachmann 1

Outburst occured on Sept. 22. It is bright as 12.5 mag still now (Oct. 4, Thomas Lehmann). 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 31  17 45.49  -28 43.1   6.584   5.994    49   13.9  18:32 ( 44, 10)  
Nov.  7  17 50.72  -28 37.3   6.663   5.992    44   14.0  18:27 ( 47,  8)

* C/2014 Q1 ( PanSTARRS )

It approached to the sun down to 0.3 a.u. on July 6, and brighted up to 3.9 mag (July 6, Thomas Lehmann). Now it is fading. It has already faded down to 12.9 mag (Oct. 3, Chris Wyatt). In the Northern Hemisphere, it keeps observable until the comet fades out. It will not be observable after this in the Northern Hemisphere. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 31  15 40.64  -51 59.9   2.999   2.349    41   13.9  18:32 ( 41,-22)  
Nov.  7  16  0.04  -52 51.0   3.133   2.452    39   14.2  18:27 ( 41,-23)

* C/2011 KP36 ( Spacewatch )

Now it is 14.2 mag (Oct. 15, Taras Prystavski). Distant object, but it keeps observable at 14-15 mag for a long time from 2015 to 2016. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 31  21 14.60   -7 16.9   4.818   5.112   101   14.5  18:38 (  0, 48)  
Nov.  7  21 17.30   -7 31.1   4.910   5.098    95   14.5  18:27 (  5, 47)

* 19P/Borrelly

Now it is 14.2 mag (Oct. 11, Hidetaka Sato). In the Northern Hemisphere, it keeps observable after this while the comet will be fading. It is not observable in the Southern Hemisphere until January when the comet will fade down to 16 mag. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 31  12 24.47   22 52.4   2.709   2.144    46   14.5   4:54 (259, 26)  
Nov.  7  12 38.22   22 10.6   2.706   2.195    49   14.7   4:59 (262, 29)

* 116P/Wild 4

Appearing in the morning sky in the Northern Hemisphere. It will be observable after December in the Southern Hemisphere. It is expected to brighten up to 13 mag from winter to spring. It will be observable in excellent condition in the Southern Hemisphere. But it locates somewhat low in the Northern Hemisphere. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 31  12 13.96    0  3.2   3.001   2.246    33   14.7   4:54 (281, 15)  
Nov.  7  12 27.31   -1 28.2   2.943   2.236    37   14.6   4:59 (285, 18)

* P/2010 V1 ( Ikeya-Murakami )

First return of a periodic comet which brightened up to 8 mag in major outburst in 2010. It will be observable in excellent condition from winter to spring. Now it is not detected, fainter than 20 mag (Oct. 2, Jean-Francois Soulier). 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 31   8 40.24   30  1.8   1.598   1.915    92   15.1   4:54 (283, 74)  
Nov.  7   8 55.55   29 37.9   1.500   1.882    95   14.6   4:59 (292, 78)

* C/2015 G2 ( MASTER )

It brightened up to 6.0 mag in mid May (May 14, Chris Wyatt). Now it is fading. It has already faded down to 14.5 mag (Oct. 11, Seiichi Yoshida). In the Northern Hemisphere, it keeps observable in good condition after this while the comet will be fading. It locates somewhat low in the Southern Hemisphere. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 31   8 22.24   26 53.5   2.398   2.681    95   14.7   4:54 (302, 76)  
Nov.  7   8 13.10   28 31.4   2.346   2.768   104   14.8   4:59 (339, 83)

* C/2014 A4 ( SONEAR )

Now it is 14.5 mag (Oct. 15, Taras Prystavski). It will be fading slowly after this. In the Northern Hemisphere, it keeps observable for a long time until the comet fades out. In the Southern Hemisphere, it will be low after this. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 31   1 17.54   15  3.8   3.239   4.206   165   15.1  22:39 (  0, 70)  
Nov.  7   1  5.13   15  3.9   3.290   4.213   155   15.2  21:59 (  0, 70)

* C/2014 N3 ( NEOWISE )

Now it is 14.1 mag (Oct. 7, Taras Prystavski). It keeps 15 mag for a long time from 2014 to 2015. 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)  
Oct. 31   1 11.96   46 56.1   3.525   4.368   144   15.1  22:33 (180, 78)  
Nov.  7   1  2.92   47  5.7   3.569   4.395   142   15.2  21:57 (180, 78)

* 318P/2014 M6 ( McNaught-Hartley )

First return of a periodic comet discovered in 1994. It brightened up to 13.8 mag from summer to autumn (Sept. 7, Taras Prystavski). Now it is fading, but it is bright as 15.3 mag still now (Oct. 16, Taras Prystavski). It is observable in excellent 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)  
Oct. 31  22 36.84  -26  4.7   1.886   2.449   112   15.2  20:00 (  0, 29)  
Nov.  7  22 40.72  -24 18.9   1.961   2.452   107   15.3  19:36 (  0, 31)

* C/2014 Y1 ( PanSTARRS )

It will be observable at 14 mag from winter to summer. It will be observable in excellent condition in the Southern Hemisphere. It locates low in the Northern Hemisphere. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 31  12 24.75    3 12.1   3.187   2.415    33   15.3   4:54 (277, 15)  
Nov.  7  12 37.90    1 22.1   3.114   2.387    36   15.2   4:59 (281, 18)

* 61P/Shajn-Schaldach

Now it is 14.7 mag (Oct. 13, Mitsunori Tsumura). It keeps observable at 15 mag in good condition for a while. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 31   2 21.64    4 37.8   1.140   2.126   170   15.3  23:43 (  0, 60)  
Nov.  7   2 17.71    4  4.8   1.156   2.132   166   15.3  23:12 (  0, 59)

* 81P/Wild 2

Now it is 16.6 mag (Oct. 16, D. Buczynski). It will brighten up to 11 mag from spring to summer in 2016. In the Northern Hemisphere, it keeps observable in good condition while the comet will be brightening. It locates somewhat low in the Southern Hemisphere. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 31   6  5.80   19 38.3   2.099   2.796   125   15.6   3:31 (  0, 75)  
Nov.  7   6  5.60   19 32.1   1.986   2.756   132   15.4   3:04 (  0, 75)

* C/2013 V4 ( Catalina )

Now it is 14.3 mag (Oct. 13, Taras Prystavski). It keeps 15-16 mag for a long time until 2016. It keeps observable in excellent condition in the Northern Hemisphere. It keeps unobservable in the Southern Hemisphere. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 31   5 28.19   68 20.8   4.651   5.188   117   15.5   2:55 (180, 57)  
Nov.  7   5 20.65   69 46.7   4.606   5.190   121   15.5   2:20 (180, 55)

* C/2012 F3 ( PanSTARRS )

Now it is 15.0 mag (Oct. 2, Taras Prystavski). It will be unobservable in early December in the Southern Hemisphere, or in early January in the Northern Hemisphere. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 31  19 46.55  -14 43.5   4.012   3.943    78   15.6  18:32 ( 25, 37)  
Nov.  7  19 53.38  -14 45.1   4.139   3.974    73   15.7  18:27 ( 29, 35)

* 230P/LINEAR

Now it is 15.8 mag (Oct. 20, K. Hills). It is expected to brighten rapidly, and to be observable at 14.5 mag in good condition in autumn. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 31   5  5.36   -9 30.0   0.635   1.498   132   15.8   2:31 (  0, 46)  
Nov.  7   5 10.08   -9 13.9   0.606   1.490   136   15.6   2:08 (  0, 46)

* 117P/Helin-Roman-Alu 1

It brightened up to 13 mag in 2014. Now it is 15.1 mag (Oct. 15, Taras Prystavski). It will be fading slowly after this. It is observable at 16 mag in excellent condition from summer to winter in 2015. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 31   1  6.55   -0 36.3   3.050   3.983   157   16.2  22:28 (  0, 54)  
Nov.  7   1  2.85   -0 43.3   3.113   3.999   149   16.3  21:57 (  0, 54)

* C/2006 S3 ( LONEOS )

It brightened up to 11-12 mag in 2012. It has already faded down to 16.5 mag (July 9, Taras Prystavski). Appearing in the morning sky. It is observable at 16 mag in good condition from winter to spring. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 31  11 16.52   -6 18.1  11.050  10.377    45   16.3   4:54 (296, 22)  
Nov.  7  11 17.11   -6 29.7  10.995  10.414    52   16.3   4:59 (302, 28)

* 141P/Machholz 2

It brightened rapidly in mid August, and brightened up to 10.8 mag (Sept. 13, Sandor Szabo). Secondary component H also brightened up to 14.8 mag (Sept. 13, Thomas Lehmann). Now it is fading very rapidly. It has already faded down to 16.5 mag (Oct. 15, Taras Prystavski). In the Northern Hemisphere, it keeps observable in good condition in the morning sky. In the Southern Hemisphere, it keeps locating extremely low from summer to autumn. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 31  10 41.45   -1 15.7   1.576   1.297    55   16.5   4:54 (298, 32)  
Nov.  7  10 53.41   -3 23.6   1.601   1.375    58   17.1   4:59 (305, 34)

* C/2015 GX ( PanSTARRS )

Now it is 16.7 mag (Oct. 11, A. Diepvens). It is observable at 16-17 mag in good condition from October to December in the Northern Hemisphere. It is not observable in the Southern Hemisphere. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 31   3 11.27   84  1.4   1.555   2.108   109   16.6   0:46 (180, 41)  
Nov.  7   1 54.78   79 29.1   1.505   2.137   116   16.6  22:47 (180, 46)

* C/2012 K1 ( PanSTARRS )

It brightened up to 6.9 mag in 2014 autumn (Oct. 17, Marco Goiato). Now it is fading. It has already faded down to 15.3 mag (Oct. 3, Taras Prystavski). In the Southern Hemisphere, it keeps observable in good condition until the comet fades out. In the Northern Hemisphere, it keeps observable until winter, but it locates somewhat low. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 31  22 45.27  -28 35.2   4.935   5.404   113   16.6  20:08 (  0, 27)  
Nov.  7  22 41.44  -28 14.2   5.112   5.470   106   16.7  19:36 (  0, 27)

* C/2015 K1 ( MASTER )

Now it is 16.1 mag (Oct. 14, Yasukazu Ikari). It keeps observable in good condition until the comet fades out. In 2014, it must have been observable at 14 mag in good condition in the Southern Hemisphere. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 31   0  1.43    2 46.7   3.748   4.591   144   16.8  21:24 (  0, 58)  
Nov.  7  23 58.90    2 55.0   3.871   4.643   136   16.9  20:54 (  0, 58)

* 118P/Shoemaker-Levy 4

Now it is 16.7 mag (Oct. 4, Taras Prystavski). It will brighten up to 14 mag in 2016 summer. But it is not observable at the highlight. It keeps observable until March while the comet will be brightening gradually up to 15-16 mag. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 31   0 20.12   -7 17.3   1.752   2.620   143   16.9  21:42 (  0, 48)  
Nov.  7   0 17.13   -7 38.2   1.782   2.590   136   16.9  21:12 (  0, 47)

* P/2015 Q1 ( Scotti )

Now it is 16.8 mag (Oct. 17, K. Hills). It is observable at 17 mag in excellent condition in autumn. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 31   6 18.56   -2 57.3   1.119   1.813   118   16.9   3:44 (  0, 52)  
Nov.  7   6 21.54   -5 32.3   1.095   1.830   122   16.9   3:19 (  0, 50)

* 151P/Helin

Now it is 16.9 mag (Oct. 10, Taras Prystavski). It will be fading after this. It will be fainter than 18 mag at the end of 2015. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 31  23 28.31   -8 34.3   1.703   2.481   132   16.9  20:51 (  0, 47)  
Nov.  7  23 30.41   -8 21.0   1.773   2.486   125   17.0  20:26 (  0, 47)

* 205P/Giacobini

It was so faint as 20.0 mag in August (Aug. 17, Hidetaka Sato). However, it brightened by 6 mag in outburst in mid September, and brightened up to 13.7 mag (Sept. 21, Seiichi Yoshida). Now it is fading rapidly. It has already faded down to 16.1 mag (Oct. 19, Taras Prystavski). It keeps observable in excellent condition for a while. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 31   4 46.73    1  8.9   1.392   2.253   141   17.1   2:12 (  0, 56)  
Nov.  7   4 41.29    0  7.8   1.399   2.297   147   17.5   1:40 (  0, 55)

* 44P/Reinmuth 2

It brightened up to 16.4 mag in 2014 (Nov. 14, J. F. Hernandez). Now it is 17.0 mag (Oct. 20, Purple Mountain Observatory). It keeps observable in good condition for a while. But it will be fainter than 18 mag in January. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 31   4 17.16   28 17.0   1.763   2.663   148   17.1   1:43 (  0, 83)  
Nov.  7   4 11.78   28  0.7   1.751   2.692   156   17.1   1:10 (  0, 83)

* C/2015 B2 ( PanSTARRS )

Now it is 16.8 mag (Oct. 19, Hidetaka Sato). It keeps 16.5 mag for a long time in 2016, and it will be 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)  
Oct. 31   8 59.62  -44 15.0   3.964   3.796    73   17.3   4:54 (344,  8)  
Nov.  7   8 55.96  -46 45.6   3.869   3.768    76   17.2   4:59 (351,  7)

* 74P/Smirnova-Chernykh

Now it is 18.2 mag (Oct. 18, H. Nohara). Now it is near the aphelion. It is observable at 17 mag in good condition from autumn to winter. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 31   3 42.80   16  4.0   3.357   4.301   159   17.3   1:09 (  0, 71)  
Nov.  7   3 38.53   15 54.0   3.320   4.293   167   17.3   0:37 (  0, 71)

* 329P/2015 T1 ( LINEAR-Catalina )

First return of a periodic comet discovered in 2003. Now it is 18.1 mag (Oct. 11, J.-F. Soulier). It will approach to the earth from autumn to winter, and it was expected to brighten up to 15 mag and observable in excellent condition. But actually, it is fainter than expected by 1.5 mag. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 31   4 58.47   -4 52.4   0.844   1.705   136   17.4   2:24 (  0, 50)  
Nov.  7   4 59.58   -3 31.6   0.796   1.689   141   17.3   1:57 (  0, 51)

* C/2011 J2 ( LINEAR )

Now it is 16.5 mag (Oct. 4, Taras Prystavski). It is fading, but it is a bit brighter than this ephemeris. The fragments B and C are already fainter than 20 mag (June 12, Takaaki Oribe). 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 31  22 38.12   -2 31.3   6.128   6.720   122   17.3  20:01 (  0, 53)  
Nov.  7  22 36.18   -3 12.9   6.283   6.766   115   17.4  19:31 (  0, 52)

* 57P/du Toit-Neujmin-Delporte

Now it is 15.3 mag (Oct. 10, Taras Prystavski). It keeps observable in good condition for a while. But it will be fading after this, and will be fainter than 18 mag in November. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 31   0  0.40   -0 32.6   1.363   2.236   142   17.4  21:23 (  0, 55)  
Nov.  7   0  0.87   -0 38.9   1.452   2.272   135   17.6  20:56 (  0, 54)

* 77P/Longmore

It will brighten rapidly after this, and it will be observable at 14-15 mag in good condition from winter to summer. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 31  11 53.07   14 37.4   3.251   2.658    45   17.5   4:54 (271, 28)  
Nov.  7  12  3.37   13 15.5   3.166   2.638    49   17.4   4:59 (276, 32)

* 162P/Siding Spring

Now it is 17.1 mag (Oct. 22, C. Bell). It is observable in good condition in the Northern Hemisphere. It is not observable in the Southern Hemisphere. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 31  10 20.73   40 28.1   1.680   1.754    77   17.4   4:54 (248, 56)  
Nov.  7  10 36.32   40 45.8   1.670   1.804    81   17.5   4:59 (248, 59)

* 328P/2015 S1 ( LONEOS-Tucker )

First return of a periodic comet discovered in 1998. Now it is 17.9 mag (Oct. 3, J. V. Scotti). It will be observable at 17.5 mag from autumn to winter. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 31  21 14.29  -13 44.8   1.521   1.952    99   17.5  18:38 (  0, 41)  
Nov.  7  21 22.33  -12  0.5   1.577   1.936    95   17.5  18:27 (  3, 43)

* 174P/(60558) 2000 EC98 ( Echeclus )

Now it is 16.5 mag (Sept. 8, Jean-Francois Soulier). It has brightened in outburst up to 14 mag twice, in 2006 January and 2011 May. It is around the perihelion now. It keeps observable at 17 mag for a long time after this. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 31  23  3.49   -5 57.0   5.230   5.889   127   17.5  20:26 (  0, 49)  
Nov.  7  23  3.28   -6  1.6   5.328   5.894   120   17.6  19:58 (  0, 49)

* 50P/Arend

Now it is 17.3 mag (Oct. 10, Taras Prystavski). It was expected to be observable at 16 mag in good condition from summer to winter. But actually, it is fainter than originally predicted, and it will be 17.5 mag at best. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 31  22 30.71   -6  7.1   1.436   2.116   120   17.5  19:53 (  0, 49)  
Nov.  7  22 31.99   -4 48.9   1.484   2.091   113   17.6  19:27 (  0, 50)

* C/2014 B1 ( Schwartz )

Now it is 17.3 mag (Oct. 21, A. Maury, J.-F. Soulier, J.-G. Bosch, T. Noel). It keeps 17.5 mag for a long time from 2016 to 2019. It keeps locating near by the equator. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 31   8 15.01   -0 22.4  10.210  10.272    90   17.7   4:54 (341, 53)  
Nov.  7   8 15.73   -0 32.2  10.087  10.258    97   17.6   4:59 (354, 54)

* (3200) Phaethon

Now it is 18.0 mag (Oct. 10, Jean-Francois Soulier). Now it is around the aphelion. It is observable at 17.5 mag in excellent condition in autumn 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)  
Oct. 31   2 55.74   41 33.1   1.460   2.379   151   17.7   0:23 (180, 83)  
Nov.  7   2 36.99   40 17.5   1.450   2.388   155   17.6  23:30 (180, 85)

* C/2010 U3 ( Boattini )

It will pass the perihelion in 2019. However, it has not been brightening since the discovery in 2010. Now it is 18.0 mag (Oct. 6, Yasukazu Ikari). It keeps observable in excellent condition from autumn to next spring in the Northern Hemisphere. It is not observable in the Southern Hemisphere. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 31   3 40.61   47 22.0  10.173  10.977   142   17.7   1:07 (180, 78)  
Nov.  7   3 37.47   47 33.5  10.109  10.952   146   17.7   0:36 (180, 77)

* 211P/Hill

Now it is 18.6 mag (Oct. 11, Hidetaka Sato). It is observable at 17 mag in good condition in winter. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 31   7 59.91   11 58.0   2.083   2.419    97   17.9   4:54 (341, 66)  
Nov.  7   8  6.66   12  2.1   1.989   2.409   102   17.8   4:59 (357, 67)

* C/2015 T4 ( PanSTARRS )

Now it is 18.1 mag (Oct. 15, A. Maury, J.-F. Soulier, J.-G. Bosch, T. Noel). It will brighten up to 16 mag in 2016 summer. In the Southern Hemisphere, it keeps observable in good condition for a long time. In the Northern Hemisphere, it is observable only until next March. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 31   5 46.53   -2 27.4   2.714   3.394   125   18.0   3:12 (  0, 53)  
Nov.  7   5 41.01   -5  3.9   2.597   3.342   131   17.8   2:39 (  0, 50)

* 51P/Harrington

It brightened up to 15.9 mag in June as predicted (June 23, Ken-ichi Kadota). It was expected to be observable at 13 mag in good condition from summer to autumn. However, Jean-Gabriel Bosch detected the comet became disintegrating in July. Now it is so faint as 20.1 mag (Oct. 15, Pan-STARRS 1, Haleakala). The fragment D and B are also observed as 19.0 mag (Sept. 20, Michael Jager) and 20.9 mag (Aug. 21, Pan-STARRS 1, Haleakala) respectively. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 31   2  8.17    3 37.1   0.876   1.861   169   19.4  23:30 (  0, 59)  
Nov.  7   2  4.03    3 57.7   0.916   1.889   164   19.6  22:58 (  0, 59)

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