Weekly Information about Bright Comets (2013 July 13: South)

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Updated on July 16, 2013
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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.

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* 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 9.6 mag (July 13, D. Sidorko). 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)  
July 13  23 26.84   62 29.3   1.895   2.048    83    8.9   4:04 (180, -7)  
July 20  22 59.98   65 52.3   1.943   2.142    86    9.1   3:10 (180,-11)  

* 46P/Wirtanen

The condition is worst and the comet will be hardly observable in this apparition. In the Northern Hemisphere, it will be observable in autumn when the comet will be fainter than 16 mag.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 13   6 27.91   23 20.6   2.009   1.053    14   10.2   5:36 (246, -7)  
July 20   6 59.91   23 39.6   2.022   1.062    13   10.1   5:34 (247, -8)  

* C/2011 L4 ( PanSTARRS )

It passed the perihelion on Mar. 10, and brightened up to 0-1 mag. Now it is fading. But it is still bright as 10.9 mag (July 10, D. Sidorko). It is observable in good condition in the Northern Hemisphere. It will be observable in the extremely low sky from mid August to mid September also in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 13  14 31.47   60 26.1   2.477   2.482    78   10.9  19:06 (180, -5)  
July 20  14 34.09   56 56.6   2.602   2.582    77   11.2  18:41 (180, -2)  

* 26P/Grigg-Skjellerup

Brightening very rapidly near the perihelion as predicted. Now it is 13.3 mag and already visible visually (July 8, Chris Wyatt). It is expected to reach up to 12 mag in the evening sky from July to August.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 13  11 22.81    7 41.1   1.209   1.090    57   12.5  18:34 (132, 34)  
July 20  11 53.62    7 14.8   1.210   1.102    58   12.1  18:38 (131, 34)  

* C/2012 V2 ( LINEAR )

It brightened up to 14.4 mag until April (Apr. 13, Sandor Szabo). It will brighten up to 12 mag from summer to autumn. Now it is not observable. In the Southern Hemisphere, it will become observable in August, then it keeps observable while fading gradually. It will never be observable again in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 13   6 25.45   17  8.1   2.489   1.535    15   12.8   5:36 (251, -3)  
July 20   6 41.81   14  0.5   2.429   1.506    19   12.7   5:34 (252,  1)  

* C/2012 L2 ( LINEAR )

Now it is so bright as 11.2 mag (July 3, Con Stoitsis). 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)  
July 13   7 34.52  -19 48.2   2.376   1.753    41   12.8  18:34 ( 70,  7)  
July 20   7 51.60  -23  0.3   2.394   1.802    43   13.0   5:34 (293,  8)  

* C/2013 N4 ( Borisov )

New bright comet discovered in the extremely low sky at dawn. Now it is 12.9 mag (July 12, Hidetaka Sato). It keeps 12-13 mag until autumn, but it keeps locating extremely low in the morning sky. It is not observable until November in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 13   5 57.71   45  8.5   2.143   1.359    29   13.0   5:36 (225,-15)  
July 20   6 34.69   43 49.5   2.113   1.317    28   12.8   5:34 (227,-16)  

* C/2012 S1 ( ISON )

It is expected to be a great comet in 2013 autumn when the comet approaches to the sun down to only 0.01 A.U. It keeps visible with naked eyes from November to January, and can be extremely bright as Venus or more at the highlight. However, the brightening has declined at 15.5 mag from January through May in 2013. Now it is not observable. The condition is excellent in the Northern Hemisphere. It will appear in the morning sky again in late August, then 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)  
July 13   7 38.09   26 10.7   3.949   2.937     4   13.2  18:34 (109,-19)  
July 20   7 45.86   25 44.9   3.846   2.837     5   13.0   5:34 (251,-18)  

* 246P/2010 V2 ( NEAT )

It brightened up to 12 mag in 2012. It is bright as 13.3 mag still now (July 1, Hidetaka Sato). It keeps 13-14 mag until autumn. It locates somewhat low in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 13  19 38.55  -34 36.0   2.012   3.012   167   13.0   0:17 (180, 90)  
July 20  19 33.01  -35 14.0   2.031   3.023   164   13.0  23:39 (  0, 90)  

* C/2010 S1 ( LINEAR )

Now it is 13.1 mag (July 13, D. Sidorko). 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)  
July 13  20 27.09   32 12.7   5.281   5.912   124   13.2   1:05 (180, 23)  
July 20  20 19.21   31 33.9   5.242   5.915   127   13.2   0:29 (180, 23)  

* C/2006 S3 ( LONEOS )

It brightened up to 11-12 mag in 2012. Now it is bright as 13.3 mag (June 11, Sandor Szabo). It keeps observable in good condition until July in the Northern Hemisphere, or until September in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 13  13 14.64  -10  1.7   6.057   6.149    90   13.3  18:34 (155, 63)  
July 20  13 12.78   -9 56.8   6.213   6.177    83   13.4  18:38 (140, 59)  

* 29P/Schwassmann-Wachmann 1

Now it is 12.2 mag and visible visually (July 3, Con Stoitsis).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 13  13 36.74  -20 32.6   5.963   6.207    99   13.8  18:34 (159, 75)  
July 20  13 38.31  -20 30.2   6.070   6.205    92   13.9  18:38 (138, 72)  

* C/2011 J2 ( LINEAR )

Now it is 14.5 mag (June 11, Sandor Szabo). It keeps 13 mag and observable in good condition in the Northern Hemisphere for a long time from 2013 to 2014. But it locates low in July and August. 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)  
July 13   9 16.10   50 37.2   4.545   3.764    35   14.0  18:34 (141,-16)  
July 20   9 21.05   50 50.7   4.534   3.739    34   14.0  18:38 (139,-19)  

* (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)  
July 13   0 58.50  -11 54.7   2.571   2.946   101   14.3   5:35 (180, 67)  
July 20   1  1.90  -12  7.9   2.495   2.957   107   14.2   5:11 (180, 67)  

* C/2012 S3 ( PanSTARRS )

Now it is 15.5 mag (July 8, Sandor Szabo). It is expected to brighten up to 14 mag in July and August. In the Southern Hemisphere, it keeps observable for a long time until the comet fades out. It keeps observable in good condition until September also in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 13  21  0.76    7 10.8   1.480   2.374   143   14.6   1:39 (180, 48)  
July 20  20 40.84    2 28.1   1.399   2.357   154   14.5   0:52 (180, 52)  

* C/2013 E2 ( Iwamoto )

Now it is bright as 13.5 mag (June 12, Sandor Szabo). It keeps locating in the morning sky for a long time after this. I will keep the current brightness for a long time.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 13   1 10.89   11 46.1   1.992   2.233    89   14.5   5:36 (184, 43)  
July 20   1 16.13   11 25.2   1.972   2.302    95   14.6   5:25 (180, 43)  

* C/2012 K1 ( PanSTARRS )

Now it is 14.3 mag and visible visually (July 8, Gabor Santa and Krisztian Sarneczky). It is expected to brighten up to 5-6 mag in 2014 autumn. In 2013, it keeps observable in good condition until autumn when it brigthens up to 13-14 mag.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 13  16  2.65   21  9.9   4.735   5.228   113   14.6  20:36 (180, 34)  
July 20  15 56.80   20 45.0   4.755   5.161   108   14.5  20:03 (180, 34)  

* 117P/Helin-Roman-Alu 1

Now it is 14.3 mag (July 8, Chris Wyatt). It keeps bright as 13-14 mag for a long time from 2013 to 2014.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 13  14  8.03  -11 32.5   2.914   3.298   103   14.7  18:43 (180, 67)  
July 20  14 10.91  -12  3.3   2.997   3.286    97   14.7  18:38 (168, 67)  

* C/2013 G5 ( Catalina )

Now it is 16.9 mag (June 9, Hidetaka Sato). It will approach to the Sun down to 0.9 A.U., and to the Earth down to 0.4 A.U. in September. So it was expected to brighten up to 11-12 mag. However, it looks extremely diffuse on July 12 by Michael Jager. So the comet can be already disintegrated. In the Northern Hemisphere, it keeps observable in good condition until mid September. In the Southern Hemisphre, it will getting higher after August, and it keeps observable in good condition after that.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 13  13 36.47   45 16.8   1.055   1.274    75   15.2  18:34 (176, 10)  
July 20  13 43.23   42 43.1   0.983   1.198    73   14.7  18:38 (171, 12)  

* C/2011 R1 ( McNaught )

It kept bright as 11-13 mag for a long time from 2012 summer to 2013 summer. It will be fading after this. Now it is 14.8 mag (July 8, Sandor Szabo). In the Northern Hemisphere, it keeps observable for a long time until the comet fades out. In the Southern Hemisphere, it becomes low in late August, then it will be hardly observable.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 13  13 16.46   21  1.7   3.680   3.636    79   14.9  18:34 (168, 33)  
July 20  13 16.96   21  1.9   3.847   3.694    73   15.1  18:38 (160, 31)  

* C/2009 F4 ( McNaught )

Few observations have been reported recently. It keeps 15 mag in 2013. It is observable in good condition in the Southern Hemisphere. It will be observable in good condition also in the Northern Hemisphere after August.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 13   4  5.52  -23 30.1   7.116   6.786    67   15.2   5:36 (267, 48)  
July 20   4  7.74  -23 29.2   7.073   6.815    71   15.2   5:34 (263, 53)  

* C/2012 K6 ( McNaught )

Now it is 14.0 mag and visible visually (June 11, Sandor Szabo). It reaches up to 14-15 mag from spring to summer. It is 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)  
July 13  12 48.55  -12 29.9   3.314   3.389    85   15.6  18:34 (140, 62)  
July 20  12 48.12  -11  0.4   3.459   3.399    78   15.7  18:38 (129, 57)  

* C/2013 G6 ( Lemmon )

It brightened very rapidly. Now it is so bright as 14.0 mag (July 1, Hidetaka Sato). It keeps observable in good condition for a while in the Southern Hemipshere. It will never be observable again in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 13  11 11.18  -19 28.1   2.201   2.054    68   15.7  18:34 (101, 50)  
July 20  11  6.57  -19 56.8   2.327   2.049    61   15.8  18:38 ( 94, 43)  

* 288P/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 17.5 mag (July 12, K. Sarneczky, G. Marschalko). 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)  
July 13   3 55.71   36  2.3   3.636   3.053    48   15.9   5:36 (215,  8)  
July 20   4  7.99   36 41.7   3.531   3.013    51   15.7   5:34 (212,  9)  

* C/2011 F1 ( LINEAR )

It brightened up to 9.0 mag in 2012 autumn (Nov. 4, Juan Jose Gonzalez). However, it faded out unexpectedly around the perihelion passage. Now it is fainter than originally predicted by 4-5 mag. Now it is 15.2 mag (June 3, Hidetaka Sato). In the Southern Hemisphere, it keeps observable in good condition while fading slowly after this. In the Northern Hemisphere, it will not be observable after this.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 13   3 31.06  -43 52.7   2.797   2.897    85   15.8   5:36 (299, 60)  
July 20   3 40.15  -44 29.7   2.821   2.959    87   15.9   5:34 (300, 63)  

* P/2013 J2 ( McNaught )

Now it is 16.3 mag (June 18, Catalina Sky Survey). It brightens up to 15.5 mag and will be observable in excellent condition from summer to autumn.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 13  21 39.71   -3 47.9   1.280   2.183   143   15.9   2:17 (180, 59)  
July 20  21 37.81   -2 21.6   1.235   2.172   149   15.8   1:48 (180, 57)  

* 154P/Brewington

Not observed yet in this apparition. It will brighten very rapidly near the perihelion passage. It is expected to reach up to 10 mag from autumn to winter. But actually, it is not detected, fainter than 20.5 mag on July 6 (Hidetaka Sato). 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)  
July 13  23  1.74  -18 43.3   1.476   2.270   130   16.3   3:39 (180, 74)  
July 20  23  2.72  -18  9.5   1.374   2.223   136   16.0   3:12 (180, 73)  

* P/2012 F2 ( PanSTARRS )

Few observations have been reported recently. It keeps observable in good condition at 17 mag from spring to summer.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 13  18 30.29   -5  2.3   2.013   2.980   157   16.4  23:04 (180, 60)  
July 20  18 27.05   -5  0.1   2.051   2.992   153   16.5  22:33 (180, 60)  

* P/2012 B1 ( PanSTARRS )

Now it is 16.1 mag (June 30, Hiroshi Abe). It will be observable at 14-16 mag for a long time from 2013 to 2014.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 13  12 12.33    1 17.1   4.020   3.826    71   16.5  18:34 (140, 46)  
July 20  12 17.87    0 29.2   4.112   3.825    66   16.6  18:38 (132, 43)  

* 257P/2012 F4 ( Catalina )

Now it is 17.1 mag (June 8, Ken-ichi Kadota). It is expected to be observable at 16 mag in good condition in summer and autumn.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 13   0  9.45   21 10.7   1.738   2.150    99   16.6   4:46 (180, 34)  
July 20   0 16.27   21 50.7   1.676   2.158   103   16.5   4:25 (180, 33)  

* 98P/Takamizawa

Brightening extremely rapidly. Now it is bright as 16.2 mag (June 30, V. Gerke, S. Plaksa). It will be observable at 16 mag in excellent condition in summer.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 13  15 10.45   -6 47.5   0.976   1.690   116   16.6  19:45 (180, 62)  
July 20  15 18.58   -8 50.7   1.012   1.681   112   16.6  19:26 (180, 64)  

* 63P/Wild 1

Now it is fading. It has already faded down to 16.8 mag (June 30, Hiroshi Abe). It will be unobservable in July in the Northern Hemisphere. It will be fainter than 18 mag in August also in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 13  11 43.79   -8  3.5   2.294   2.154    69   16.8  18:34 (123, 49)  
July 20  11 55.89   -9 53.5   2.387   2.183    66   17.1  18:38 (116, 47)  

* C/2011 O1 ( LINEAR )

It has not been observed recently. In the Southern Hemisphere, it keeps observable in good condition for a long time while fading gradually. It is not observable at all in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 13   5 15.53  -41  6.2   5.044   4.796    70   16.8   5:36 (297, 40)  
July 20   5 22.04  -41  2.3   5.056   4.830    71   16.9   5:34 (296, 44)  

* P/1998 Y2 ( Li )

First return of a new periodic comet discovered in 1998. It is expected to be observable at 15.5 mag in good condition from 2013 autumn to early 2014. However, it has not been recovered yet, although it locates high in the Southern Hemisphere. Actually, it seems to be much fainter than predicted, fainter than 19.5 mag (June 20, Martin Masek).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 13   1 38.79  -18 23.0   2.764   3.020    94   17.0   5:36 (210, 71)  
July 20   1 46.00  -18 39.7   2.659   2.991    99   16.9   5:34 (197, 73)  

* P/2005 L1 ( McNaught )

First return of a new periodic comet discovered in 2005. It was expected to be observable at 17 mag for a long time from 2013 to 2014. However, it has not been recovered yet. Actually, it is much fainter than predicted, fainter than 20.5 mag (June 8, Danilo Pivato).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 13  16 42.20  -13 28.7   2.372   3.214   139   17.0  21:16 (180, 69)  
July 20  16 40.46  -13 47.1   2.431   3.208   132   17.1  20:47 (180, 69)  

* C/2013 A1 ( Siding Spring )

Now it is 17.2 mag (June 5, A. C. Gilmore, P. M. Kilmartin). 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)  
July 13   5 21.81  -15 17.5   6.203   5.582    48   17.1   5:36 (269, 29)  
July 20   5 24.83  -15 46.3   6.083   5.519    52   17.0   5:34 (266, 33)  

* C/2012 C1 ( McNaught )

Now it is 17.4 mag (June 15, K. Hills). It keeps 17 mag for a long time from 2012 to 2013, and will be observable in good condition in the Southern Hemisphere. It is not observable at all in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 13   2  6.52  -70  9.1   4.594   4.993   107   17.3   5:36 (350, 54)  
July 20   1 57.45  -71 39.8   4.573   5.006   109   17.3   5:34 (356, 53)  

* C/2012 A2 ( LINEAR )

It was observed at 15-16 mag in 2012. Now it is fading. It has already faded down to 16.9 mag (June 30, J. F. Soulier). It will be fainter than 18 mag in autumn. It locates low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 13   2 17.62   38 47.9   4.476   4.190    67   17.4   5:36 (196, 14)  
July 20   2 16.68   38 37.2   4.396   4.223    73   17.4   5:34 (190, 15)  

* C/2012 S4 ( PanSTARRS )

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)  
July 13   0 37.44   16 56.7   4.140   4.350    95   17.5   5:14 (180, 38)  
July 20   0 34.57   16  2.6   4.015   4.352   102   17.4   4:44 (180, 39)  

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

Now it is 17.4 mag (June 29, Jean-Francois Soulier). It has brightened in outburst up to 14 mag twice, in 2006 January and 2011 May. It will pass the perihelion in 2015. 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)  
July 13  19  2.45  -17 53.4   5.558   6.568   172   17.5  23:36 (180, 73)  
July 20  18 59.72  -17 59.3   5.562   6.553   166   17.6  23:06 (180, 73)  

* 102P/Shoemaker 1

Now it is 18.1 mag (June 13, Mt. Lemmon Survey). It is brighter than originally expected by 1 mag. It will brighten up to 16.5 mag and will be observable in good condition from summer to autumn.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 13   0 27.65    1 17.1   1.513   2.013   103   17.6   5:04 (180, 54)  
July 20   0 32.41    3 40.1   1.434   2.002   108   17.5   4:41 (180, 51)  

* 152P/Helin-Lawrence

It brightened up to 15.5 mag in 2012 summer. Although it has already passed the perihelion, it tends to become brightest after the perihelion passage. Now it is 18.6 mag, fainter than this ephemeris (June 20, A. Maury, J. F. Soulier).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 13  22 38.81  -19 11.8   2.850   3.647   135   17.5   3:16 (180, 74)  
July 20  22 37.07  -19 44.9   2.804   3.664   142   17.5   2:47 (180, 75)  

* C/2012 Q1 ( Kowalski )

Because it is a very distant comet, it will be fading very slowly. It keeps observable at 17.5 mag in 2013.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 13  23 25.28   11 19.1   9.313   9.759   113   17.7   4:02 (180, 44)  
July 20  23 24.89   11 12.7   9.221   9.767   119   17.7   3:34 (180, 44)  

* C/2011 KP36 ( Spacewatch )

Now it is 17.7 mag (June 10, P. Lindner). It is expected to brighten up to 14 mag from 2015 to 2016.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 13  17 43.08   -2 13.1   7.721   8.597   147   17.8  22:17 (180, 57)  
July 20  17 41.18   -2 20.9   7.737   8.562   142   17.8  21:47 (180, 57)  

* C/2008 S3 ( Boattini )

It has been observed at 17 mag for a long time from 2009 to 2012. It is also observable at 18 mag in good condition in 2013.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 13  22  8.95    8 29.5   8.548   9.239   130   17.8   2:46 (180, 46)  
July 20  22  5.12    8 19.2   8.488   9.260   137   17.8   2:15 (180, 47)  

* 119P/Parker-Hartley

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)  
July 13   1 47.73   15 25.1   3.342   3.322    80   17.9   5:36 (195, 38)  
July 20   1 53.57   15 59.9   3.233   3.308    85   17.8   5:34 (189, 38)  

* P/1819 W1 ( Blanpain )

It was discovered in 1819, and re-discovered in 2003. Although it was predicted to be extremely faint as 26 mag, it unusually brightened up to 17.5 mag in outburst (July 6, Hidetaka Sato). It will pass the perihelion in 2014 August, and will approach to the sun down to 0.96 a.u. The brightness is predicted to be 23 mag at best. However, if the cometary activity continues, it may be observed brighter.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 13  19 34.64  -27  6.1   2.831   3.844   174   17.9   0:13 (180, 82)  
July 20  19 27.56  -27 24.9   2.803   3.809   170   18.1  23:33 (180, 82)  

* C/2013 F3 ( McNaught )

Now it is 17.4 mag (June 21, Mt. Lemmon Survey). Although it was 16.5 mag in May, it is fading very rapidly after that.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 13  17  0.06   34 28.4   1.720   2.320   113   17.9  21:33 (180, 20)  
July 20  16 46.92   35 46.2   1.821   2.341   107   18.2  20:52 (180, 19)  

* 17P/Holmes

It brightened up to 2 mag by unusual major outburst in 2007. It was observed around aphelion at 22 mag. It will return in 2014. It will be 14 mag at best by normal prediction. Now it is 17.2 mag, a bit brighter than this ephemeris (July 3, D. Herald).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 13  16 59.80  -46 33.1   1.922   2.787   141   17.9  21:34 (  0, 79)  
July 20  16 55.31  -45 32.0   1.940   2.757   135   17.9  21:02 (  0, 80)  

* C/2013 G7 ( McNaught )

Now it is 17.4 mag (June 8, Catalina Sky Survey). It keeps 17-18 mag for a long time from 2013 to 2014. It keeps observable in good condition in the Southern Hemisphere. In the Northern Hemisphere, it is only observable until 2013 July.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 13  14  4.90  -19  7.6   4.716   5.074   104   17.9  18:39 (180, 74)  
July 20  14  1.63  -19 34.4   4.815   5.053    97   17.9  18:38 (155, 73)  

* C/2012 K8 ( Lemmon )

It keeps observable at 18 mag for a long time from 2013 to 2016. It keeps locating high in the Northern Hemisphere. It keeps locating very low in the Southern Hemipshere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 13  19 28.06   26 18.1   6.288   7.007   131   17.9   0:06 (180, 29)  
July 20  19 21.90   26 37.3   6.269   6.989   131   17.9  23:27 (180, 28)  

* 91P/Russell 3

It was predicted to be 17 mag. But actually, it is much fainter, 19.1 mag (June 30, J. Gonzalez.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 13  17 54.14  -12 49.2   1.779   2.738   155   18.6  22:28 (180, 68)  
July 20  17 50.79  -12 30.9   1.831   2.750   148   18.7  21:57 (180, 67)  

* 184P/Lovas 2

Although it was expected to be bright as 16 mag, actually it was so faint as 19.3 mag, fainter than expected by 3 mag (July 3, Hidetaka Sato). It will be observable in good condition from summer to autumn, however, it will be only 19 mag at best.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 13   1 48.08   13  0.4   1.144   1.405    80   18.8   5:36 (195, 41)  
July 20   2 10.02   15  4.5   1.114   1.397    81   18.7   5:34 (194, 39)  

* C/2012 V1 ( PanSTARRS )

It was expected to brighten up to 15 mag in 2013 summer. But actually, it is so faint as 19.5 mag, fainter than expected by 4 mag (July 2, J. F. Soulier).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July 13  22 38.04   22 26.8   1.435   2.093   116   19.1   3:16 (180, 32)  
July 20  22  5.01   21  3.7   1.306   2.090   127   19.0   2:16 (180, 34)  

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