Weekly Information about Bright Comets (2013 Dec. 14: South)

Japanese version
Home page
Updated on December 15, 2013
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 R1 ( Lovejoy )

Now it is so bright as 4.9 mag (Dec. 4, Jakub Cerny). 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)  
Dec. 14  16 34.22   30 52.3   0.732   0.829    55    4.8   2:53 (258,-42)  
Dec. 21  17  1.09   26 18.6   0.873   0.812    51    5.1   2:55 (263,-40)  

* C/2012 X1 ( LINEAR )

Although it was predicted to be 14 mag, it brightened up to 8 mag in outburst in mid October. The dust shell is getting diffuse after that, and expanding up to 50x20 arcmin (Nov. 28, Michael Jager). Now it is bright as 9.3 mag (Dec. 5, Jakub Cerny). Mitsunori Tsumura reported the comet got active again in December.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)  
Dec. 14  15 34.15   14 45.1   2.382   1.850    46    9.2   2:53 (267,-23)  
Dec. 21  15 55.27   13 20.0   2.324   1.805    47    9.4   2:55 (268,-20)  

* C/2012 S1 ( ISON )

It was expected to be a great comet as it approached to the sun down to only 0.01 A.U. on Nov. 28. It brightened up to -2.5 mag at best. However, the comet's nucleus disrupted at the perihelion passage. After that, the dust remnant had been visible until Dec. 6 on the STEREO spacecraft images. However, the dust remnant has not been detected by CCD observations on the ground. The nucleus is not detected, fainter than 18 mag (Dec. 13, Lorenzo Comolli). But visual observers reported it was visible at 7.5 mag on Dec. 6 (Piotr Guzik), 7.2 mag on Dec. 7 (Juan Jose Gonzalez), and 9.6 mag on Dec. 9 (Jakub Cerny). It approaches to the earth down to 0.4 A.U. from mid December to early January. It will be observable in excellent condition in the Northern Hemisphere, but it is extremely hard to catch the comet. It is not observable in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Dec. 14  16 10.57   12 11.6   0.549   0.663    39    9.4   2:53 (276,-29)  
Dec. 21  16 14.07   32  1.2   0.457   0.857    60   10.1   2:55 (252,-33)  

* 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)  
Dec. 14  17  9.84  -27 34.4   1.620   0.648     5   10.4   2:53 (317,-12)  
Dec. 21  17 47.94  -28 17.0   1.750   0.776     5   11.8   2:55 (319,-13)  

* C/2013 V3 ( Nevski )

New bright comet. It brightened very rapidly after discovered on Nov. 6 at 15 mag. Now it is bright as 10.0 mag but diffuse (Dec. 6, Jakub Cerny). It seems to keep 10-11 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)  
Dec. 14  10 34.90   23 49.8   0.867   1.518   109   10.5   2:53 (213, 24)  
Dec. 21  10 49.09   27 50.2   0.864   1.558   114   10.6   2:55 (208, 22)  

* 154P/Brewington

It brightened very rapidly. Now it is so bright as 10.6 mag (Dec. 4, Jakub Cerny). 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)  
Dec. 14  23  6.42   13 18.3   1.254   1.608    91   10.8  20:55 (126, 22)  
Dec. 21  23 21.38   15 22.8   1.303   1.611    88   10.9  21:00 (125, 18)  

* 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 11.6 mag still now (Dec. 7, Chris Wyatt). 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)  
Dec. 14  14  8.43  -62 51.5   2.661   2.185    51   12.5   2:53 (327, 32)  
Dec. 21  14 33.46  -63 59.9   2.717   2.252    52   12.8   2:55 (329, 33)  

* 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 12.7 mag (Dec. 4, Juan Jose Gonzalez). A bit fainter than originally expected. But in the Northern Hemisphere, it keeps observable in excellent condition from autumn to spring. It locates somewhat low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Dec. 14   6 46.47   40 26.5   1.377   2.309   155   12.8   1:17 (180, 15)  
Dec. 21   6 41.04   39 41.3   1.334   2.287   161   12.6   0:44 (180, 15)  

* C/2012 K1 ( PanSTARRS )

Now it is bright as 13.6 mag (Dec. 11, Hidetaka Sato). It is expected to brighten up to 5-6 mag in 2014 autumn. In the Northern Hemisphere, it will be getting higher gradually after this, and it keeps observable in good condition for a long time. 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)  
Dec. 14  16 10.32   10  7.7   4.402   3.676    38   12.9   2:53 (277,-28)  
Dec. 21  16 14.30   10 14.6   4.273   3.601    41   12.7   2:55 (273,-22)  

* C/2011 J2 ( LINEAR )

Now it is 12.8 mag and visible visually (Dec. 5, Juan Jose Gonzalez). 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)  
Dec. 14  17 29.88   84 19.9   3.018   3.445   107   13.6  20:55 (175,-39)  
Dec. 21  19 51.35   82 59.9   3.021   3.444   107   13.6  21:00 (171,-37)  

* 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. It has already faded down to 14.0 mag (Nov. 27, Sandor Szabo). 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)  
Dec. 14  19 33.00   48 37.8   4.024   3.927    77   13.9  20:55 (129,-34)  
Dec. 21  19 40.92   48 37.1   4.131   4.004    75   14.0  21:00 (128,-38)  

* C/2010 S1 ( LINEAR )

Now it is 12.9 mag (Nov. 27, Sandor Szabo). It keeps bright at 13-14 mag for a long time until 2014. It keeps observable for a long time in the Northern Hemisphere, although it becomes unobservable temporarily in January. In the Southern Hemisphere, it keeps unobservable until March.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Dec. 14  19 26.18    7 29.4   6.767   6.080    42   13.9  20:55 ( 87,-17)  
Dec. 21  19 28.77    6 55.4   6.838   6.092    37   13.9  21:00 ( 82,-23)  

* C/2006 S3 ( LONEOS )

It brightened up to 11-12 mag in 2012. Now it is 14.8 mag (Dec. 10, Hidetaka Sato). It will be observable in good condition at 14 mag until 2014 early summer.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Dec. 14  13 30.25  -14  7.3   7.320   6.818    55   14.0   2:53 (274, 19)  
Dec. 21  13 30.09  -14 17.4   7.240   6.851    63   13.9   2:55 (270, 25)  

* 29P/Schwassmann-Wachmann 1

Appearing in the morning sky. It looks somewhat diffuse by Jean-Francois Soulier's image on Dec. 13.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Dec. 14  15 15.65  -26 35.0   7.016   6.177    29   14.2   2:53 (299,  5)  
Dec. 21  15 20.96  -26 58.1   6.955   6.176    35   14.1   2:55 (296, 10)  

* 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). It will be unobservable soon, and keeps unobservable until May.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Dec. 14  20  1.58  -24 13.2   2.931   2.208    35   14.4  20:55 ( 67,  9)  
Dec. 21  20 16.26  -22 49.9   2.959   2.189    32   14.3  21:00 ( 65,  5)  

* C/2013 V1 ( Boattini )

Now it is 14.1 mag and visible visually (Nov. 27, 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)  
Dec. 14   3 48.48   -5 52.9   1.485   2.344   142   14.6  22:14 (180, 61)  
Dec. 21   3 34.04   -2 49.7   1.468   2.285   136   14.4  21:32 (180, 58)  

* C/2013 A1 ( Siding Spring )

Now it is 15.2 mag (Nov. 23, K. Hills). 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)  
Dec. 14   4  0.68  -39 18.1   3.642   4.147   114   14.7  22:26 (  0, 86)  
Dec. 21   3 47.90  -39 21.9   3.630   4.079   110   14.6  21:46 (  0, 86)  

* (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)  
Dec. 14   0 13.21  -12 50.8   2.924   3.177    95   14.7  20:55 (118, 52)  
Dec. 21   0 16.34  -11 49.8   3.032   3.186    89   14.8  21:00 (112, 46)  

* C/2013 N4 ( Borisov )

Now it is 14.6 mag (Nov. 22, Toshiyuki Takahashi). It will be fading slowly until May when it becomes fainter than 18 mag. It keeps observable in good condition in the Southern Hemisphere. It keeps locating extremely low in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Dec. 14  12 58.90  -28 47.5   2.376   2.056    59   14.8   2:53 (285, 32)  
Dec. 21  13  6.66  -31 30.9   2.379   2.131    63   15.0   2:55 (285, 38)  

* 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)  
Dec. 14  17 18.56  -25 31.3   4.081   3.098     2   14.9   2:53 (318,-15)  
Dec. 21  17 30.82  -25 50.6   4.069   3.093     6   14.9   2:55 (315,-13)  

* 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 15.4 mag (Nov. 24, A. Klotz, F. Kugel, J. Nicolas). 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)  
Dec. 14  20 42.13  -12 20.1   2.829   2.289    47   15.3  20:55 ( 82, 10)  
Dec. 21  20 54.75  -11 48.4   2.850   2.248    43   15.2  21:00 ( 80,  6)  

* 134P/Kowal-Vavrova

Now it is 16.7 mag (Dec. 2, Hidetaka Sato). It is expected to brighten up to 13 mag and to be observable in excellent condition from spring to summer in 2014.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Dec. 14  12 52.25   -7 28.9   3.110   2.873    67   15.4   2:53 (263, 23)  
Dec. 21  13  1.47   -8 22.1   3.000   2.849    71   15.3   2:55 (261, 28)  

* C/2012 K6 ( McNaught )

It brightened up to 14.0 mag from spring to summer (June 11, Sandor Szabo). Now it is 15.0 mag, much brighter than origianlly predicted (Dec. 11, Hidetaka Sato). In the Northern Hemisphere, it will be observable at 15-16 mag in excellent condition until spring. It locates somewhat low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Dec. 14  13 49.40    3  4.3   4.280   3.861    58   15.5   2:53 (263,  5)  
Dec. 21  13 50.91    4  9.1   4.193   3.893    65   15.5   2:55 (258, 10)  

* C/2009 F4 ( McNaught )

Now it is 15.5 mag (Nov. 18, Yasukazu Ikari). 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)  
Dec. 14   3 19.11  -23 32.8   6.864   7.461   124   15.6  21:46 (180, 78)  
Dec. 21   3 15.58  -22 52.3   6.961   7.494   119   15.6  21:15 (180, 78)  

* 52P/Harrington-Abell

Now it is 15.6 mag (Dec. 3, Yasukazu Ikari). 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)  
Dec. 14   4 15.44   41 35.2   0.995   1.938   156   15.7  22:42 (180, 13)  
Dec. 21   4 10.26   41  2.5   0.989   1.913   151   15.6  22:09 (180, 14)  

* 84P/Giclas

Now it is 16.0 mag (Dec. 5, P. Bacci, L. Tesi, G. Fagioli). 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)  
Dec. 14   6 26.22   18 20.7   1.251   2.216   164   15.7   0:57 (180, 37)  
Dec. 21   6 19.71   18 53.2   1.269   2.248   172   15.7   0:23 (180, 36)  

* 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)  
Dec. 14  15 20.71  -64 35.1   3.770   3.168    46   16.1   2:53 (333, 26)  
Dec. 21  15 40.41  -65  3.6   3.826   3.237    47   16.3   2:55 (333, 27)  

* 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 16.3 mag (Nov. 24, J. Gonzalez). It keeps observable for a long time until March when the comet becomes fainter than 18 mag.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Dec. 14   5 54.20   -1 15.0   3.774   4.682   154   16.6   0:25 (180, 56)  
Dec. 21   5 50.25   -1 41.4   3.818   4.727   154   16.7  23:49 (180, 57)  

* C/2012 F3 ( PanSTARRS )

It is expected to brighten up to 13 mag and to be observable in good condition in 2015. Now it is 16.7 mag (Dec. 11, Hidetaka Sato). 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)  
Dec. 14  13 31.56   -4  1.3   5.888   5.454    59   16.7   2:53 (266, 13)  
Dec. 21  13 36.26   -4 17.0   5.746   5.410    65   16.6   2:55 (262, 18)  

* C/2013 V2 ( Borisov )

Now it is 16.8 mag (Nov. 6, G. Borisov, O. Bryzgalov). It keeps 16 mag for a long time until 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)  
Dec. 14   5 11.95   52 23.9   3.567   4.452   150   16.7  23:38 (180,  3)  
Dec. 21   5  5.13   52 52.8   3.542   4.415   149   16.7  23:04 (180,  2)  

* 119P/Parker-Hartley

Now it is 17.5 mag (Nov. 22, K. Hills). 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)  
Dec. 14   1 37.88   12 49.4   2.406   3.082   125   16.7  20:55 (164, 41)  
Dec. 21   1 38.97   12 40.6   2.483   3.075   118   16.8  21:00 (154, 38)  

* P/2013 J2 ( McNaught )

Brightened rapidly. Now it is visible visually at 15.6 mag (Nov. 27, Sandor Szabo). It will fade out rapidly after this, and will be fainter than 18 mag in January.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Dec. 14  22 37.48    8 22.8   2.314   2.394    82   17.0  20:55 (117, 21)  
Dec. 21  22 48.81    9  6.6   2.419   2.423    78   17.2  21:00 (114, 16)  

* 32P/Comas Sola

Now it is 17.5 mag (Nov. 24, Y. Sugiyama). 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)  
Dec. 14   0 13.51   -6 12.4   2.918   3.216    98   17.2  20:55 (125, 48)  
Dec. 21   0 15.74   -5 31.3   2.983   3.178    92   17.2  21:00 (118, 42)  

* (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)  
Dec. 14  22  7.70   12 29.6   1.232   1.405    77   17.2  20:55 (115, 13)  
Dec. 21  22 29.59   13  1.3   1.376   1.487    76   17.4  21:00 (114, 10)  

* 292P/2013 O1 ( Li )

First return of a new periodic comet discovered in 1998. Now it is 16.3 mag (Nov. 23, Y. Sugiyama). It is fainter than originally expected by 1-2 mag. It was expected to be observable at 15 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)  
Dec. 14   1 35.95  -17 48.5   2.041   2.560   110   17.2  20:55 (143, 69)  
Dec. 21   1 37.87  -15 55.2   2.103   2.551   105   17.2  21:00 (131, 63)  

* 291P/2013 N2 ( NEAT )

Now it is 16.5 mag (Nov. 22, Y. Sugiyama). 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)  
Dec. 14   2 40.80   16 20.0   1.752   2.591   140   17.3  21:08 (180, 39)  
Dec. 21   2 40.77   16  0.0   1.812   2.591   133   17.4  21:00 (174, 39)  

* C/2012 A2 ( LINEAR )

It was observed at 15-16 mag in 2012. Now it is fading slowly. But it keeps 16.8 mag still now (Nov. 24, Y. Sugiyama). It will be fainter than 18 mag in January. It locates low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Dec. 14   0 10.93   13  1.1   4.663   5.017   105   17.3  20:55 (140, 32)  
Dec. 21   0 10.06   11 56.6   4.828   5.058    97   17.4  21:00 (131, 28)  

* C/2013 E2 ( Iwamoto )

Fading slowly. It is bright as 16.3 mag still now (Nov. 24, Y. Sugiyama). It keeps observable in good condition until the comet will be fainter than 18 mag in January.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Dec. 14   0 39.40   -4 53.5   3.407   3.783   104   17.3  20:55 (134, 51)  
Dec. 21   0 41.88   -4 40.1   3.580   3.852    98   17.5  21:00 (125, 46)  

* C/2013 G6 ( Lemmon )

It brightened rapidly, and it keeps bright as 15.9 mag still now (Nov. 25, A. Maury, J.-F Soulier, J. G Bosch). 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)  
Dec. 14   9 11.36  -52 31.4   2.449   2.635    89   17.5   2:53 (337, 70)  
Dec. 21   8 42.94  -53 42.7   2.417   2.685    94   17.8   2:46 (  0, 71)  

* C/2013 V4 ( Catalina )

Now it is 17.5 mag (Dec. 7, Catalina Sky Survey). It keeps 15-16 mag for a long time from 2015 to 2016. In this winter, it is observable at 17.5 mag until March.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Dec. 14   3  3.57   -6 34.5   6.382   7.106   134   17.5  21:30 (180, 61)  
Dec. 21   3  0.41   -6  3.8   6.424   7.072   127   17.5  21:00 (180, 61)  

* P/2013 TL117 ( Lemmon )

Now it is 17.8 mag (Dec. 1, J. De Queiroz, R. Behrend). It keeps close to the earth around 0.7 a.u. until spring. It will brighten up to 16.5 mag in February and March, and will be observable in excellent 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)  
Dec. 14   0 26.66   18 35.5   0.722   1.414   110   17.8  20:55 (147, 29)  
Dec. 21   0 30.00   19 24.4   0.721   1.362   105   17.6  21:00 (141, 25)  

* 178P/Hug-Bell

Now it is 17.6 mag (Nov. 24, G. Hug). 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)  
Dec. 14   7 23.33   20 12.2   1.350   2.268   152   17.7   1:54 (180, 35)  
Dec. 21   7 18.10   21  4.4   1.345   2.297   160   17.8   1:21 (180, 34)  

* 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 18.0 mag (Nov. 23, R. Naves, M. Campas). 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)  
Dec. 14   4 32.77   23  3.4   1.050   2.023   167   17.7  22:59 (180, 32)  
Dec. 21   4 27.50   22 42.5   1.121   2.072   159   18.0  22:26 (180, 32)  

* C/2013 V5 ( Oukaimeden )

Now it is 17.6 mag (Dec. 7, J. F. Hernandez). It is expected to brighten up to 6 mag in 2014 autumn. At this time, it keeps observable while brightening gradually until April when it becomes 16 mag.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Dec. 14   7  0.93   22 56.8   3.333   4.261   157   17.9   1:32 (180, 32)  
Dec. 21   6 50.19   22 56.9   3.219   4.185   167   17.8   0:54 (180, 32)  

* 266P/2012 P1 ( Christensen )

Now it is 19.1 mag (Nov. 11, Hidetaka Sato). In this winter, it is observable at 17.5 mag in good condition until March.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Dec. 14  10 47.44   11  5.0   2.008   2.425   102   17.9   2:53 (223, 33)  
Dec. 21  10 52.03   10 39.2   1.937   2.438   108   17.8   2:55 (217, 36)  

* C/2010 U3 ( Boattini )

Now it is 18.9 mag (Dec. 4, H. Denzau). 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)  
Dec. 14   2 47.10   27  6.4  12.809  13.620   144   17.9  21:14 (180, 28)  
Dec. 21   2 45.55   27  4.4  12.855  13.591   137   17.9  21:00 (176, 28)  

* C/2012 A1 ( PanSTARRS )

Now it is 18.6 mag (Nov. 24, A. Maury, J.-F Soulier, J. G Bosch). 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)  
Dec. 14   6 11.05   10 57.0   6.654   7.603   163   17.9   0:42 (180, 44)  
Dec. 21   6  5.63   10 29.4   6.642   7.603   166   17.9   0:09 (180, 44)  

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

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