Weekly Information about Bright Comets (2013 Nov. 23: North)

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Updated on November 27, 2013
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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/2012 S1 ( ISON )

Now it is 3.6 mag (Nov. 22, Osamu Miyazaki). Although it had been fainter than predicted, an outburst occured on Nov. 13 and the comet is brightening rapidly now. It will approach to the sun down to only 0.01 A.U. on Nov. 28, and is expected to be a great comet. In this week, we can see the comet passes very near by the Sun via the SOHO images. The condition is excellent in the Northern Hemisphere. It keeps observable almost all through the period of brightening, at the highlight, and of fading. The condition is not good in the Southern Hemisphere. It is not observable at all the latter part of the highlight, and it keeps low all through the period.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 23  14 30.70  -17 38.0   0.861   0.342    19    4.2   5:13 (292,  0)  
Nov. 30  16 21.38  -16 20.5   0.912   0.114     5    0.7   5:19 (280,-15)  

* C/2013 R1 ( Lovejoy )

Now it is so bright as 5.0 mag (Nov. 22, Osamu Miyazaki). It will pass only 0.4 A.U. from the earth, and 0.8 A.U. from the sun in November and December, and will brighten up to 4-5 mag. In the Northern Hemisphere, it keeps observable in excellent condition for a long time until 2014 autumn when the comet will fade out. In the Southern Hemisphere, it is not be observable from mid November to early February.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 23  12 34.05   42 16.1   0.406   0.984    77    4.6   5:13 (244, 53)  
Nov. 30  14 36.53   41 18.5   0.478   0.918    67    4.5   5:19 (241, 36)  

* 2P/Encke

It brightened rapidly as expected. It passed the perihelion on Nov. 21, and brightened up to 7.8 mag (Nov. 18, Todd Augustyniak). It will never be observable after this.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 23  14 46.83  -17  3.2   1.143   0.338    16    7.3   5:13 (289, -3)  
Nov. 30  15 37.51  -22 28.2   1.327   0.403    10    8.2   5:19 (291, -9)  

* C/2012 X1 ( LINEAR )

Although it was predicted to be 14 mag, it is extremely bright as 8.2 mag in outburst now (Nov. 12, Marek Biely). The round dust shell is expanding and getting diffuse. It will be observable in excellent condition in 2014 spring. In the Northern Hemisphere, it will be getting higher gradually in the morning sky. In the Southern Hemisphere, it is not observable until 2014 February.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 23  14 32.58   18 54.6   2.589   2.000    43    8.7   5:13 (261, 20)  
Nov. 30  14 52.72   17 33.0   2.514   1.947    45    8.8   5:19 (264, 22)  

* C/2013 V3 ( Nevski )

New bright comet. It brightened very rapidly after discovered on Nov. 6 at 15 mag. Now it is so bright as 8.8 mag (Nov. 15, Marco Goiato). It seems to keep 8-9 mag for a while after this. It is observable in excellent condition in the Northern Hemisphere. It locates somewhat low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 23   9 42.94   12 58.1   0.938   1.442    97    9.0   5:13 (346, 67)  
Nov. 30  10  0.73   16 13.3   0.919   1.472   101    9.0   5:19 (355, 71)  

* 154P/Brewington

It brightened very rapidly. Now it is so bright as 10.9 mag (Nov. 22, D. Sidorko). It keeps bright as 10 mag from autumn to winter. In the Northern Hemipshere, it keeps observable in excellent condition until the comet fades out. In the Southern Hemisphere, it keeps observable in good condition within 2013, but it will not be observable in 2014.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 23  22 28.75    7  7.6   1.119   1.622   100   10.8  18:19 (  0, 62)  
Nov. 30  22 39.97    9 10.1   1.162   1.614    97   10.7  18:18 (  8, 64)  

* C/2012 V2 ( LINEAR )

It became much brighter than expected, and reached up to 8.5 mag (Aug. 15, Alexandre Amorim). Now it is fading, but it is bright as 10.7 mag still now (Nov. 5, Alexandre Amorim). In the Southern Hemisphere, it will keep observable in good condition for a long time until 2014 summer when the comet fades out. 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. 23  12 50.26  -57 52.3   2.474   1.991    50   11.5   5:13 (334,-13)  
Nov. 30  13 16.54  -59 49.8   2.538   2.055    50   11.9   5:19 (337,-14)  

* C/2012 K1 ( PanSTARRS )

Now it is 14.0 mag and visible visually (Sept. 6, Sandor Szabo). It is expected to brighten up to 5-6 mag in 2014 autumn. In the Northern Hemisphere, it keeps observable in good condition for a long time, although it will be unobservable temporarily in late November. In the Southern Hemisphere, it will not be observable until 2014 February.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 23  15 58.56   10 22.4   4.716   3.899    30   13.3  18:19 (103,  0)  
Nov. 30  16  2.40   10 12.1   4.623   3.825    32   13.2   5:19 (260,  4)  

* 290P/2013 N1 ( Jager )

First return of a new periodic comet discovered in 1998. It brightened up to 10 mag at the discovery. Now it is 14.7 mag (Nov. 8, Sandor Szabo). In the Northern Hemisphere, it keeps observable in excellent condition from autumn to spring. A bit fainter than originally expected, but it will brighten up to 12 mag. It locates somewhat low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 23   6 54.36   41 35.0   1.569   2.385   136   13.4   2:47 (180, 83)  
Nov. 30   6 53.41   41 21.3   1.495   2.358   142   13.2   2:19 (180, 84)  

* C/2012 F6 ( Lemmon )

It approached to the sun down to 0.73 A.U. on Mar. 24, and brightened up to 4.7 mag (Mar. 11, Michael Mattiazzo). Now it is fading. But it is still bright as 11.9 mag (Oct. 30, Jakub Cerny). In the Northern Hemisphere, it keeps observable in good condition while fading gradually. 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. 23  19 10.53   49 34.6   3.693   3.693    82   13.4  18:19 (128, 51)  
Nov. 30  19 17.73   49  6.2   3.805   3.771    80   13.6  18:18 (127, 48)  

* C/2013 N4 ( Borisov )

Now it is 11.8 mag (Nov. 8, Sandor Szabo). It keeps 11-13 mag until autumn, but it keeps locating extremely low in the morning sky.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 23  12 30.92  -20  2.1   2.352   1.835    47   13.5   5:13 (313, 19)  
Nov. 30  12 40.96  -23  3.3   2.363   1.908    51   13.7   5:19 (319, 20)  

* C/2011 J2 ( LINEAR )

Now it is 13.3 mag and visible visually (Nov. 8, Sandor Szabo). It keeps 13-14 mag and observable in good condition in the Northern Hemisphere for a long time from 2013 to 2014. In the Southern Hemisphere, it is not observable until 2014 autumn.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 23  12 43.93   77 41.1   3.117   3.456   101   13.7   5:13 (193, 42)  
Nov. 30  13 33.37   80 44.3   3.067   3.451   104   13.7   5:19 (190, 40)  

* C/2010 S1 ( LINEAR )

Now it is 12.3 mag (Oct. 30, Jakub Cerny). It keeps bright at 13-14 mag for a long time until 2014. It keeps observable for a long time in the Northern Hemisphere. It locates somewhat low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 23  19 19.64    9 39.2   6.499   6.046    58   13.8  18:19 ( 71, 40)  
Nov. 30  19 21.57    8 51.1   6.596   6.057    53   13.8  18:18 ( 75, 35)  

* C/2006 S3 ( LONEOS )

It brightened up to 11-12 mag in 2012. Now it is bright as 13.7 mag (July 24, Taras Prystavski). In the Northern Hemisphere, it is appearing in the morning sky again. In the Southern Hemisphere, it will be observable again after mid December.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 23  13 28.65  -13 28.2   7.503   6.722    35   14.0   5:13 (298, 14)  
Nov. 30  13 29.49  -13 42.4   7.453   6.754    42   14.0   5:19 (304, 19)  

* 29P/Schwassmann-Wachmann 1

Not observable now. It will appear in the morning sky again in late December.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 23  14 58.98  -25 23.6   7.137   6.182    13   14.2   5:13 (294,-10)  
Nov. 30  15  4.62  -25 47.6   7.107   6.180    18   14.2   5:19 (298, -5)  

* (596) Scheila

Big asteroid discovered in 1906. It suddenly showed the cometary activity on Dec. 11, 2010, probably due to an impact of a small object. It has already turned to be stellar.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 23   0  9.08  -15 32.9   2.613   3.149   114   14.4  19:59 (  0, 40)  
Nov. 30   0  9.51  -14 43.2   2.713   3.158   107   14.5  19:32 (  0, 40)  

* 17P/Holmes

It brightened up to 2 mag by unusual major outburst in 2007. It will return in 2014. It will be 14 mag at best by normal prediction. But actually, it is already very bright as 13.5 mag (Nov. 25, Hidetaka Sato).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 23  19 18.17  -27 55.4   2.828   2.270    46   14.7  18:19 ( 42, 13)  
Nov. 30  19 32.49  -26 45.8   2.865   2.249    43   14.6  18:18 ( 45, 12)  

* C/2013 A1 ( Siding Spring )

Now it is 15.5 mag (Oct. 18, F. Garcia). It is expected to brighten up to 7.5 mag and to be observable in excellent condition from summer to autumn in 2014 in the Southern Hemisphere. The condition is bad in the Northern Hemisphere. It will pass extremely close to Mars in 2014 October.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 23   4 38.67  -37 26.3   3.755   4.351   121   15.0   0:32 (  0, 18)  
Nov. 30   4 26.46  -38 19.6   3.703   4.283   120   14.9  23:47 (  0, 17)  

* C/2013 V1 ( Boattini )

Now it is 14.9 mag and visible visually (Nov. 8, Sandor Szabo). It keeps 14 mag for a long time until 2014 summer. It keeps observable in good condition in the Northern Hemisphere. It is observable only until February in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 23   4 31.63  -12 31.9   1.635   2.515   145   15.1   0:25 (  0, 42)  
Nov. 30   4 17.96  -10 46.5   1.563   2.454   147   14.9  23:38 (  0, 44)  

* 117P/Helin-Roman-Alu 1

It keeps bright as 13-14 mag for a long time from 2013 to 2014. Now it is not observable. But it will appear in the morning sky again in 2014 February.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 23  16 42.51  -24 14.4   4.077   3.117    11   14.9  18:19 ( 68,-11)  
Nov. 30  16 54.37  -24 43.1   4.085   3.110     7   14.9  18:18 ( 69,-14)  

* C/2009 F4 ( McNaught )

Now it is 15.7 mag (Oct. 11, Ken-ichi Kadota). It keeps 15 mag and observable in good condition in 2013. It locates somewhat low in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 23   3 31.79  -25  6.0   6.641   7.365   134   15.5  23:21 (  0, 30)  
Nov. 30   3 27.29  -24 40.1   6.704   7.397   131   15.5  22:49 (  0, 30)  

* 4P/Faye

It reaches up to 12 mag in 2014 spring. But the condition in this apparition is bad. It locates low around the brightest days. Now it is 16.4 mag (Oct. 9, J. L. Martin). It keeps observable in good condition until winter when the comet will brighten up to 15-16 mag.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 23  20  7.74  -13 20.3   2.737   2.414    60   15.7  18:19 ( 41, 31)  
Nov. 30  20 18.58  -13  6.0   2.772   2.372    56   15.6  18:18 ( 45, 29)  

* 84P/Giclas

Now it is 16.3 mag (Oct. 21, V. Benishek, B. Benishek). It tends to be brightest 4 months after the perihelion passage. It will reach up to 15.5 mag from autumn to winter, and will be observable in excellent condition.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 23   6 40.64   17  1.1   1.269   2.126   140   15.6   2:34 (  0, 72)  
Nov. 30   6 37.13   17 23.5   1.252   2.155   148   15.6   2:03 (  0, 72)  

* C/2012 L2 ( LINEAR )

It brightened up to 9-10 mag in 2013 spring. Now it is fading. It has already faded down to 15.8 mag (Oct. 7, Hidetaka Sato). In the Southern Hemisphere, it keeps observable for a long time until the comet fades out, although it keeps locating low. 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. 23  14 16.81  -62 41.4   3.566   2.960    45   15.7   5:13 (331,-24)  
Nov. 30  14 38.80  -63 25.0   3.639   3.029    45   15.8   5:19 (333,-23)  

* 134P/Kowal-Vavrova

It is expected to brighten up to 13 mag and to be observable in excellent condition from spring to summer in 2014. Appearing in the morning sky. It has not been observed since May. But it must be already brightening up to 16.5 mag.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 23  12 23.46   -4 36.5   3.428   2.949    53   15.9   5:13 (303, 32)  
Nov. 30  12 33.21   -5 35.7   3.325   2.923    57   15.8   5:19 (309, 35)  

* 52P/Harrington-Abell

Now it is 16.8 mag (Nov. 2, J. F. Hernandez). It will brighten rapidly and will be observable at 15 mag in winter 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. 23   4 34.23   41 41.8   1.076   2.022   156   16.3   0:28 (180, 83)  
Nov. 30   4 28.19   41 55.6   1.038   1.992   159   16.1  23:50 (180, 83)  

* (3200) Phaethon

It approached to the sun down to 0.14 A.U. on Oct. 7. In the Northern Hemisphere, it keeps observable at 16 mag in good condition from late October to mid December. In the Southern Hemisphere, it locates very low from November to December.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 23  20 32.78   10 10.7   0.840   1.118    74   16.3  18:19 ( 53, 54)  
Nov. 30  21 11.11   11 11.6   0.960   1.221    77   16.6  18:18 ( 51, 57)  

* 246P/2010 V2 ( NEAT )

It brightened up to 12 mag in 2012. It is bright as 14.1 mag still now (Oct. 27, Hidetaka Sato). It will be fading and getting lower after this, and will be unobservable at 17 mag in December.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 23  20 24.11  -31 52.1   3.635   3.269    60   16.3  18:19 ( 27, 17)  
Nov. 30  20 33.70  -31 14.3   3.732   3.285    56   16.4  18:18 ( 31, 16)  

* C/2013 V2 ( Borisov )

Now it is 16.8 mag (Nov. 6, G. Borisov, O. Bryzgalov). It keeps 15 mag for a long time from 2014 summer to 2015 summer. It keeps observable in good condition in the Northern Hemisphere. It becomes observable only after 2015 in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 23   5 29.94   50 13.0   3.474   4.317   144   16.6   1:23 (180, 75)  
Nov. 30   5 24.34   51  2.6   3.402   4.272   148   16.5   0:50 (180, 74)  

* P/2013 J2 ( McNaught )

Brightened rapidly. Now it is visible visually at 14.3 mag (Oct. 11, Seiichi Yoshida). It keeps observable in excellent condition until autumn. Some visual observers reported it extremely bright as 12 mag in August.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 23  22  5.52    6 34.7   2.011   2.316    94   16.5  18:19 ( 12, 61)  
Nov. 30  22 15.76    7  6.6   2.110   2.341    90   16.6  18:18 ( 20, 61)  

* 119P/Parker-Hartley

Now it is 17.2 mag (Oct. 9, C. Bell). It keeps 17 mag for a long time from 2013 summer to early 2015.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 23   1 40.84   13 52.1   2.226   3.105   147   16.6  21:30 (  0, 69)  
Nov. 30   1 38.84   13 25.6   2.276   3.097   139   16.7  21:01 (  0, 68)  

* C/2012 F3 ( PanSTARRS )

It is expected to brighten up to 13 mag and to be observable in good condition in 2015. Now appearing in the morning sky. In 2014, it will be observable at 15 mag in good condition from winter to summer.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 23  13 16.30   -3  0.6   6.280   5.587    42   17.0   5:13 (292, 23)  
Nov. 30  13 21.55   -3 22.8   6.156   5.542    47   16.9   5:19 (297, 28)  

* C/2012 K6 ( McNaught )

It brightened up to 14.0 mag from spring to summer (June 11, Sandor Szabo). Now it is fading. It will be observable at 17-18 mag from winter to spring. It locates somewhat low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 23  13 42.10    0 30.9   4.494   3.770    38   16.9   5:13 (284, 20)  
Nov. 30  13 44.92    1 16.0   4.432   3.800    45   16.9   5:19 (289, 27)  

* 291P/2013 N2 ( NEAT )

Now it is 17.6 mag (Oct. 11, A. Smolin). It will be observable at 17 mag in excellent condition from autumn to winter.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 23   2 47.62   17 55.0   1.632   2.596   164   17.1  22:37 (  0, 73)  
Nov. 30   2 44.36   17 18.7   1.660   2.593   156   17.1  22:06 (  0, 72)  

* 292P/2013 O1 ( Li )

First return of a new periodic comet discovered in 1998. Now it is 17.6 mag (Oct. 4, K. Hills). It is fainter than originally expected by 2 mag. It was expected to be observable at 15.5 mag in good condition from 2013 autumn to early 2014. But actually, it will be 17 mag at best.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 23   1 37.32  -22 43.1   1.893   2.595   125   17.2  21:27 (  0, 32)  
Nov. 30   1 35.67  -21 14.6   1.936   2.582   120   17.2  20:58 (  0, 34)  

* 46P/Wirtanen

The condition is worst and the comet will be hardly observable in this apparition. Now it is appearing in the morning sky in the Northern Hemisphere. Now it is 17.8 mag (Oct. 31, Jean-Francois Soulier).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 23  13 21.11    1  4.7   2.556   1.955    43   17.3   5:13 (287, 25)  
Nov. 30  13 33.17    0  6.9   2.555   2.014    46   17.6   5:19 (292, 28)  

* 184P/Lovas 2

Although it had been fainter than expected, it is brightening now. Probably it tends to be brightest after the perihelion passage. Now it is 17.0 mag (Oct. 7, D. Buczynski). It keeps observable at 17-18 mag until December. It locates somewhat low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 23   4 55.24   24 13.5   0.910   1.882   165   17.3   0:49 (  0, 79)  
Nov. 30   4 47.15   23 50.8   0.945   1.929   174   17.4   0:13 (  0, 79)  

* 32P/Comas Sola

Now it is 17.4 mag (Sept. 25, Catalina Sky Survey). Brighter than origianlly predicted. It will be observable at 12-13 mag in excellent condition from 2014 summer to 2015 spring. In the Southern Hemisphere, it will locate low around the highlight.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 23   0 12.65   -7 41.2   2.739   3.329   118   17.3  20:02 (  0, 47)  
Nov. 30   0 11.94   -7 17.8   2.795   3.292   111   17.3  19:34 (  0, 48)  

* C/2012 A2 ( LINEAR )

It was observed at 15-16 mag in 2012. Now it is fading slowly. But it keeps 15.6 mag still now (Oct. 13, Catalina Sky Survey). It will be fainter than 18 mag at the end of 2013. It locates low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 23   0 18.45   17  5.6   4.212   4.894   129   17.3  20:08 (  0, 72)  
Nov. 30   0 15.06   15 35.6   4.352   4.935   121   17.4  19:37 (  0, 71)  

* C/2013 E2 ( Iwamoto )

Fading slowly. It is bright as 15.1 mag still now (Nov. 1, Yasukazu Ikari). It keeps observable in good condition until the comet will be fainter than 18 mag in December.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 23   0 36.09   -4 59.9   2.913   3.575   125   17.4  20:26 (  0, 50)  
Nov. 30   0 36.44   -5  4.3   3.072   3.644   118   17.6  19:59 (  0, 50)  

* C/2010 U3 ( Boattini )

Now it is 18.6 mag (Oct. 13, Ken-ichi Kadota). It will brighten up to 14 mag around the perihelion passage in 2019. In 2013, it will be observable in good condition at 18 mag 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. 23   2 52.76   27 11.9  12.751  13.705   164   17.4  22:42 (  0, 82)  
Nov. 30   2 50.75   27 10.4  12.756  13.676   158   17.4  22:13 (  0, 82)  

* 257P/2012 F4 ( Catalina )

Now it is 16.4 mag (Oct. 14, Catalina Sky Survey). It will be fading after this, and will be fainter than 18 mag in late December.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 23   0 16.55    3 45.0   1.790   2.487   124   17.5  20:07 (  0, 59)  
Nov. 30   0 20.45    3  7.1   1.892   2.513   118   17.6  19:43 (  0, 58)  

* C/2012 J1 ( Catalina )

It brightened up to 12-13 mag from autumn to winter in 2012. Now it is fading. It has already faded down to 16.8 mag (Nov. 8, P. C. Sherrod). It keeps observable for a long time until the end of 2013 when the comet becomes fainter than 18 mag.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 23   6  5.28    0 39.6   3.726   4.548   142   17.6   1:58 (  0, 56)  
Nov. 30   6  1.87   -0  4.0   3.728   4.593   147   17.7   1:27 (  0, 55)  

* 178P/Hug-Bell

Now it is 17.8 mag (Oct. 11, Ken-ichi Kadota). It keeps observable at 17.5 mag in good condition from autumn to winter.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 23   7 30.61   18  3.3   1.426   2.187   129   17.7   3:23 (  0, 73)  
Nov. 30   7 29.81   18 40.2   1.392   2.213   136   17.7   2:55 (  0, 74)  

* C/2012 S4 ( PanSTARRS )

Now it is 17.1 mag (Oct. 12, Toshiyuki Takahashi). It was observed at 18 mag in 2012. It will be observable at 17 mag in excellent condition in 2013.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 23  22 42.53  -13 27.0   4.298   4.516    96   17.7  18:33 (  0, 42)  
Nov. 30  22 41.18  -14 18.2   4.445   4.531    88   17.8  18:18 (  4, 41)  

* C/2013 G6 ( Lemmon )

It brightened rapidly, and it keeps bright as 16.0 mag still now (Oct. 7, Hidetaka Sato). It will be fading after this. But it may keep 16 mag some more time. It will be getting higher gradually in the Southern Hemisphere. But it keeps locating extremely low in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 23  10 11.08  -46 29.6   2.604   2.493    72   17.8   5:13 (351,  8)  
Nov. 30   9 55.35  -48 44.4   2.546   2.539    78   18.0   5:19 (  0,  6)  

* P/2013 O2 ( PanSTARRS )

Now it is 18.7 mag (Sept. 27, Yasukazu Ikari). It was expected to brighten up to 16.5 mag from autumn to winter. But actually, it seems to be already fading.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 23   3  1.37    6 37.7   1.195   2.153   161   17.9  22:51 (  0, 62)  
Nov. 30   2 58.53    5 38.6   1.220   2.149   153   18.0  22:20 (  0, 61)  

* C/2012 A1 ( PanSTARRS )

It keeps 18-19 mag for a long time until 2015. It is observable at 18 mag in good condition in this winter.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov. 23   6 26.26   12 25.7   6.793   7.603   142   18.0   2:19 (  0, 67)  
Nov. 30   6 21.46   11 55.4   6.730   7.603   150   17.9   1:47 (  0, 67)  

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