Weekly Information about Bright Comets (2015 Nov. 28: South)

Japanese version
Home page
Updated on December 6, 2015
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.

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

* C/2013 US10 ( Catalina )

Now it is 6.1 mag (Nov. 24, Alan Hale). It was expected to brighten up to 4-5 mag from autumn to winter. However, the brightness evolution has stopped in September. In the Northern Hemisphere, it is appearing in the morning sky. It will be observable in excellent condition after this. In the Southern Hemisphere, it is hardly observable after this.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 28  14 19.47  -13  7.6   1.585   0.855    28    6.0   2:57 (289, -4)  
Dec.  5  14 18.54   -9  5.4   1.461   0.899    37    5.9   2:54 (282, -1)  

* C/2014 S2 ( PanSTARRS )

It brightened very rapidly. Now it is so bright as 8.8 mag (Nov. 20, Seiichi Yoshida). 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)  
Nov. 28  16 39.63   66  5.3   1.905   2.105    87    9.3  20:38 (152,-46)  
Dec.  5  16 44.31   64 28.6   1.913   2.101    86    9.3   2:54 (209,-50)  

* C/2013 X1 ( PanSTARRS )

Now it is so bright as 10.1 mag (Nov. 18, Katsumi Yoshimoto). 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. It is observable in excellent condition in the Northern Hemispehre. It locates very low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 28   1 57.76   40 26.2   1.535   2.413   145   10.3  21:27 (180, 15)  
Dec.  5   1 24.22   36 44.8   1.537   2.339   134   10.1  20:46 (176, 18)  

* 249P/LINEAR

It tends to brighten very rapidly around the perihelion passage. 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)  
Nov. 28  17 41.08  -20 17.6   1.284   0.500    20   11.2  20:38 ( 62, -4)  
Dec.  5  18 36.40  -19 24.7   1.178   0.531    26   11.5  20:46 ( 66, -1)  

* 22P/Kopff

Now it is bright as 9.7 mag (Nov. 30, Juan Jose Gonzalez). It is observable in the evening low sky until early December in the Southern Hemisphere, or until late December in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 28  18 55.21  -23  3.7   2.262   1.596    37   11.3  20:38 ( 70, 11)  
Dec.  5  19 18.36  -22 41.2   2.306   1.612    35   11.5  20:46 ( 68,  9)  

* 10P/Tempel 2

It brightened very rapidly. Now it is bright as 9.2 mag (Nov. 30, Juan Jose Gonzalez). It keeps 11-13 mag until February. But it keeps very low.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 28  19 38.71  -25 24.6   1.899   1.425    47   11.4  20:38 ( 73, 21)  
Dec.  5  20  4.47  -24 57.2   1.933   1.434    45   11.5  20:46 ( 72, 19)  

* C/2014 W2 ( PanSTARRS )

Now it is bright as 12.4 mag (Nov. 20, Seiichi Yoshida). It keeps 12 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)  
Nov. 28  15 22.84   85  7.1   2.442   2.881   106   12.4   2:57 (185,-37)  
Dec.  5  17 18.07   82 56.3   2.432   2.855   105   12.3  20:46 (172,-39)  

* 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)  
Nov. 28   9 39.14   28 15.7   1.229   1.787   106   13.0   2:57 (212, 19)  
Dec.  5   9 52.56   27 46.6   1.146   1.758   110   12.5   2:54 (210, 21)  

* 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 10.7 mag still now (Nov. 7, Neil Norman). In the Northern Hemisphere, it keeps observable for a long time until the comet fades out, although it becomes low temporarily in December. It is not observable until March in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 28  17 18.10   22 24.6   4.663   4.046    46   12.7  20:38 ( 95,-34)  
Dec.  5  17 25.17   21 42.7   4.750   4.115    45   12.9  20:46 ( 90,-40)  

* 67P/Churyumov-Gerasimenko

Now it is 12.5 mag (Nov. 20, Seiichi Yoshida). It will be fading slowly after this. In the Northern Hemisphere, it keeps observable in good condition. It will be getting higher gradually after this also in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 28  11 39.69    9 53.0   1.757   1.760    73   13.1   2:57 (247, 15)  
Dec.  5  11 50.11    9  5.6   1.735   1.813    78   13.3   2:54 (245, 18)  

* 29P/Schwassmann-Wachmann 1

It brightened up to 13 mag in outburst on Nov. 13 (Rob Kaufman). It will be unobservable soon.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 28  18  7.89  -28 19.2   6.849   5.986    26   14.0  20:38 ( 59,  5)  
Dec.  5  18 13.97  -28 12.5   6.891   5.984    21   14.0  20:46 ( 55,  0)  

* 116P/Wild 4

Now it is 14.9 mag (Nov. 13, Hidetaka Sato). It will 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)  
Nov. 28  13  7.21   -5 56.8   2.754   2.210    47   14.3   2:57 (273,  7)  
Dec.  5  13 20.41   -7 23.0   2.687   2.203    50   14.2   2:54 (272, 10)  

* 81P/Wild 2

Now it is 15.8 mag (Nov. 20, K. Hills). It will brighten up to 11 mag from spring to summer. 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)  
Nov. 28   5 56.77   19 17.9   1.703   2.633   155   14.7   1:32 (180, 36)  
Dec.  5   5 51.18   19 15.1   1.631   2.592   163   14.4   0:59 (180, 36)  

* C/2011 KP36 ( Spacewatch )

Now it is 14.8 mag (Nov. 22, Catalina Sky Survey). 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)  
Nov. 28  21 28.58   -7 52.2   5.189   5.056    76   14.6  20:38 (105, 34)  
Dec.  5  21 33.27   -7 52.2   5.280   5.043    70   14.6  20:46 (100, 27)  

* 88P/Howell

It brightened up to 8.8 mag in 2015 spring (Apr. 3, Marco Goiato). Now it is fading. It has already faded down to 13.5 mag (Nov. 11, Mike Wolle). 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)  
Nov. 28   1 49.77    9 30.2   1.744   2.606   143   14.7  21:22 (180, 45)  
Dec.  5   1 47.35    9 31.0   1.850   2.649   136   15.0  20:52 (180, 45)  

* 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)  
Nov. 28  16 55.73  -54 45.5   3.504   2.748    34   14.9  20:38 ( 30, 13)  
Dec.  5  17 13.43  -55 13.8   3.614   2.844    33   15.1  20:46 ( 28, 11)  

* C/2015 F4 ( Jacques )

It brightened rapidly up to 10.4 mag from July to August (July 18, Maik Meyer). Now it is fading. It has already faded down to 14.2 mag (Nov. 11, Sandor Szabo). 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)  
Nov. 28  20 56.80   46 41.2   1.879   2.169    93   14.9  20:38 (142, -9)  
Dec.  5  21 16.40   46 45.7   1.955   2.226    92   15.2  20:46 (140,-11)  

* 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 15.6 mag (Nov. 12, Sandor Szabo). 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)  
Nov. 28   7 31.98   33 39.6   2.250   3.025   134   15.1   2:57 (182, 21)  
Dec.  5   7 13.97   35 11.9   2.252   3.109   144   15.2   2:22 (180, 20)  

* 19P/Borrelly

Now it is 13.6 mag (Nov. 12, Sandor Szabo). 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)  
Nov. 28  13 15.22   20 40.1   2.674   2.347    60   15.1   2:57 (252,-10)  
Dec.  5  13 26.11   20 23.4   2.655   2.398    64   15.2   2:54 (250, -7)  

* C/2014 A4 ( SONEAR )

Now it is 15.4 mag (Nov. 15, Yuji Ohshima). 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 unobservable in early January.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 28   0 34.01   14 58.8   3.561   4.238   127   15.4  20:38 (170, 39)  
Dec.  5   0 26.11   14 59.3   3.681   4.248   119   15.5  20:46 (157, 37)  

* C/2014 N3 ( NEOWISE )

Now it is 15.1 mag (Nov. 11, Sandor Szabo). 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)  
Nov. 28   0 41.39   46 49.4   3.778   4.481   130   15.4  20:38 (176,  8)  
Dec.  5   0 36.59   46 36.1   3.870   4.511   125   15.5  20:46 (169,  7)  

* 230P/LINEAR

Now it is 15.9 mag (Nov. 12, Sandor Szabo). 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)  
Nov. 28   5 13.30   -5 33.6   0.552   1.489   149   15.4   0:49 (180, 61)  
Dec.  5   5 11.68   -3 15.3   0.548   1.496   153   15.4   0:20 (180, 58)  

* C/2013 V4 ( Catalina )

Now it is 15.7 mag (Nov. 11, Sandor Szabo). 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)  
Nov. 28   4 42.65   73 13.8   4.537   5.200   127   15.4   0:20 (180,-18)  
Dec.  5   4 25.52   73 58.8   4.536   5.204   128   15.4  23:29 (180,-19)  

* 329P/2015 T1 ( LINEAR-Catalina )

First return of a periodic comet discovered in 2003. Now it is 15.5 mag (Nov. 15, Yuji Ohshima). It is brightening very rapidly. It will approach to the earth from autumn to winter, and it will brighten up to 15 mag and observable in excellent condition.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 28   4 53.02    3 20.2   0.701   1.662   159   15.7   0:29 (180, 52)  
Dec.  5   4 48.58    6 33.1   0.689   1.660   164   15.6  23:52 (180, 48)  

* 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 15.2 mag still now (Nov. 11, Sandor Szabo). 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)  
Nov. 28  22 58.04  -18 48.2   2.210   2.470    93   15.6  20:38 (112, 57)  
Dec.  5  23  5.32  -16 55.9   2.300   2.479    88   15.7  20:46 (108, 51)  

* 61P/Shajn-Schaldach

Now it is 14.5 mag (Nov. 11, Sandor Szabo). 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)  
Nov. 28   2 10.03    3 25.7   1.273   2.159   145   15.7  21:42 (180, 51)  
Dec.  5   2  9.68    3 34.7   1.332   2.170   138   15.8  21:14 (180, 51)  

* P/2015 Q1 ( Scotti )

Brightening very rapidly, and it keeps brightening even after the perihelion passage. Now it is very bright as 15.5 mag (Nov. 21, Catalina Sky Survey). It keeps observable in excellent condition for a while.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 28   6 19.27  -12 13.5   1.065   1.892   134   16.3   1:54 (180, 67)  
Dec.  5   6 15.38  -13 49.9   1.071   1.916   137   16.3   1:23 (180, 69)  

* 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). 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)  
Nov. 28  11 17.43   -6 58.5  10.782  10.527    72   16.3   2:57 (257, 29)  
Dec.  5  11 16.98   -7  5.5  10.699  10.565    79   16.3   2:54 (253, 34)  

* 117P/Helin-Roman-Alu 1

It brightened up to 13 mag in 2014. It is bright as 14.8 mag visually still now (Nov. 11, Sandor Szabo). It will be fading after this, and will be fainter than 18 mag in spring.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 28   0 55.69   -0 35.0   3.372   4.045   127   16.6  20:38 (176, 55)  
Dec.  5   0 54.81   -0 22.3   3.477   4.060   120   16.7  20:46 (160, 54)  

* C/2015 V2 ( Johnson )

Now it is 16.7 mag (Nov. 5, Masayuki Suzuki). It was reported as 15.8 mag visually (Nov. 12, Sandor Szabo). It is expected to brighten up to 7 mag in 2017 summer. In the Northern Hemisphere, it keeps observable in good condition until the highlight while the comet will be brightening. In the Southern Hemisphere, it is not observable until early 2017.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 28   8 17.57   58 33.5   5.685   6.276   122   16.8   2:57 (187, -4)  
Dec.  5   8 15.02   59 26.8   5.567   6.217   127   16.7   2:54 (184, -5)  

* C/2015 GX ( PanSTARRS )

Now it is 16.0 mag (Nov. 12, Sandor Szabo). 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)  
Nov. 28   1 11.40   60 45.1   1.477   2.238   129   16.7  20:44 (180, -5)  
Dec.  5   1 11.18   54  8.4   1.519   2.275   129   16.8  20:46 (176,  1)  

* 118P/Shoemaker-Levy 4

Now it is 16.9 mag (Nov. 15, J. Bel). 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)  
Nov. 28   0 15.35   -7 37.1   1.919   2.501   114   16.8  20:38 (154, 60)  
Dec.  5   0 17.29   -7 16.6   1.975   2.472   108   16.8  20:46 (140, 56)  

* C/2015 B2 ( PanSTARRS )

Now it is 17.0 mag (Nov. 3, A. Maury, J.-F. Soulier, J.-G. Bosch, T. Noel). 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)  
Nov. 28   8 31.98  -54 34.4   3.614   3.686    86   17.0   2:57 (334, 67)  
Dec.  5   8 17.96  -57  4.8   3.545   3.660    88   16.9   2:54 (349, 67)  

* 77P/Longmore

Now it is 17.5 mag (Nov. 13, Hidetaka Sato). 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)  
Nov. 28  12 32.88    9 14.6   2.891   2.580    62   17.0   2:57 (255,  5)  
Dec.  5  12 42.16    7 56.5   2.794   2.562    66   16.9   2:54 (254,  8)  

* 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 17.2 mag (Nov. 16, K. Hills). 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)  
Nov. 28  22 35.05  -26 54.3   5.662   5.665    85   17.1  20:38 ( 94, 57)  
Dec.  5  22 34.40  -26 24.2   5.845   5.729    78   17.2  20:46 ( 89, 49)  

* 74P/Smirnova-Chernykh

Now it is 17.2 mag (Nov. 18, Catalina Sky Survey). 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)  
Nov. 28   3 24.67   15 23.9   3.300   4.268   167   17.2  22:56 (180, 40)  
Dec.  5   3 20.32   15 15.8   3.324   4.260   159   17.2  22:24 (180, 40)  

* 65P/Gunn

Now it is 16.9 mag (Nov. 17, J. Nicolas, C. Rinner, F. Kugel, A. Klotz). It will brighten up to 14 mag in 2017. In 2016, it keeps 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)  
Nov. 28  11 46.80   11  1.5   4.273   4.092    72   17.3   2:57 (247, 13)  
Dec.  5  11 51.56   10 44.4   4.155   4.077    78   17.2   2:54 (244, 16)  

* C/2015 K1 ( MASTER )

Now it is 16.9 mag (Nov. 14, J. Bel). 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)  
Nov. 28  23 55.50    3 35.1   4.298   4.801   115   17.3  20:38 (153, 48)  
Dec.  5  23 55.74    3 53.9   4.454   4.853   108   17.4  20:46 (142, 44)  

* C/2015 T4 ( PanSTARRS )

Now it is 17.1 mag (Nov. 17, K. Hills). 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)  
Nov. 28   5 16.19  -13 18.6   2.348   3.186   142   17.4   0:52 (180, 68)  
Dec.  5   5  5.58  -15 57.9   2.306   3.137   141   17.3   0:14 (180, 71)  

* 204P/LINEAR-NEAT

Now it is 17.3 mag (Nov. 21, Catalina Sky Survey). It is observable at 16.5 mag in excellent condition from December to February. 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 23.64   17 19.4   1.229   1.933   121   17.5   2:57 (198, 36)  
Dec.  5   8 29.27   17 29.8   1.170   1.930   126   17.3   2:54 (193, 37)  

* 44P/Reinmuth 2

Now it is 16.8 mag (Nov. 20, Catalina Sky Survey). 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)  
Nov. 28   3 52.87   26 40.2   1.796   2.777   172   17.3  23:24 (180, 28)  
Dec.  5   3 46.97   26  6.8   1.838   2.806   166   17.4  22:51 (180, 29)  

* 211P/Hill

Now it is 17.4 mag (Nov. 21, Space Surveillance Telescope, Atom Site). 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)  
Nov. 28   8 20.84   12 54.3   1.725   2.383   120   17.5   2:57 (199, 40)  
Dec.  5   8 23.19   13 29.4   1.647   2.376   127   17.3   2:54 (192, 41)  

* 151P/Helin

Now it is 17.5 mag (Oct. 28, Yasukazu Ikari). 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)  
Nov. 28  23 42.96   -6 53.6   2.021   2.509   108   17.4  20:38 (141, 56)  
Dec.  5  23 48.97   -6 11.0   2.113   2.519   102   17.5  20:46 (132, 51)  

* C/2014 B1 ( Schwartz )

Now it is 17.2 mag (Nov. 7, K. Sarneczky). 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)  
Nov. 28   8 16.05   -0 53.8   9.735  10.217   116   17.5   2:57 (203, 54)  
Dec.  5   8 15.56   -0 57.6   9.629  10.203   123   17.5   2:54 (193, 55)  

* 162P/Siding Spring

Now it is 17.1 mag (Nov. 17, K. Hills). 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)  
Nov. 28  11 13.51   42 19.6   1.628   1.957    93   17.5   2:57 (219, -4)  
Dec.  5  11 22.43   43  8.5   1.613   2.008    98   17.5   2:54 (216, -2)  

* 50P/Arend

Now it is 17.5 mag (Nov. 18, M. Jaeger, W. Vollmann, E. Prosperi, S. Prosperi). 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)  
Nov. 28  22 45.01   -0 30.4   1.648   2.025    97   17.6  20:38 (129, 42)  
Dec.  5  22 52.00    1  3.1   1.706   2.006    92   17.7  20:46 (123, 36)  

* 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 17.6 mag (Nov. 13, E. Bryssinck). 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)  
Nov. 28   3 27.36   47 51.3   9.999  10.878   151   17.7  22:59 (180,  7)  
Dec.  5   3 24.04   47 51.9   9.990  10.854   149   17.7  22:28 (180,  7)  

* C/2013 G9 ( Tenagra )

It brightened up to 16 mag in early 2015. Now it is fading. It is observable at 18 mag from winter to spring.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 28  10 46.89  -22  6.0   6.011   5.830    74   17.8   2:57 (268, 44)  
Dec.  5  10 44.04  -22 40.4   5.916   5.851    81   17.7   2:54 (265, 50)  

* 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)  
Nov. 28  23  5.67   -5 55.6   5.660   5.911   100   17.7  20:38 (130, 50)  
Dec.  5  23  7.45   -5 47.3   5.777   5.917    93   17.8  20:46 (121, 44)  

* C/2014 Y1 ( PanSTARRS )

Now it is 17.7 mag (Nov. 30, Hidetaka Sato). It was expected to brighten up to 14 mag from winter to summer. But it is much fainter actually. 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)  
Nov. 28  13 17.78   -4 12.3   2.894   2.316    45   17.8   2:57 (273,  3)  
Dec.  5  13 31.18   -6  3.8   2.820   2.297    49   17.8   2:54 (273,  7)  

* (3200) Phaethon

Now it is 17.4 mag (Nov. 8, 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)  
Nov. 28   1 49.46   34 33.0   1.521   2.402   145   17.9  21:21 (180, 21)  
Dec.  5   1 38.65   32 25.6   1.577   2.402   138   18.1  20:46 (179, 23)  

* C/2015 TQ209 ( LINEAR )

Now it is 17.8 mag (Nov. 18, M. Adamovsky). It will brighten up to 13 mag in 2016 summer. But it is not observable around the highlight. In the Southern Hemisphere, it is observable until February when it brightens up to 17 mag. In the Northern Hemisphere, it is observable until April when it brightens up to 16 mag.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 28   2  4.64   13 20.6   2.854   3.730   148   18.0  21:36 (180, 42)  
Dec.  5   2  0.60   12 44.6   2.849   3.661   140   17.9  21:05 (180, 42)  

* 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 18.6 mag (Oct. 31, Catalina Sky Survey) 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)  
Nov. 28   1 58.10    5 42.8   1.096   1.980   143   20.2  21:30 (180, 49)  
Dec.  5   1 58.83    6 30.1   1.174   2.013   137   20.4  21:03 (180, 48)  

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

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