Weekly Information about Bright Comets (2013 June 22: North)

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 Updated on June 23, 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 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 7.7 mag (June 16, Carlos Labordena). In the Northern Hemisphere, it keeps observable in good condition while fading gradually. In the Southern Hemisphere, it keeps locating low in the morning sky after this. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 22   0  9.57   49  8.5   1.795   1.757    71    8.2   2:59 (233, 53)  
June 29   0  0.27   53 58.7   1.821   1.855    75    8.4   3:02 (222, 58)

* 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 9.9 mag (June 16, Carlos Labordena). It is observable all night in the Northern Hemisphere. It is not observable in the Southern Hemisphere for a while after this. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 22  14 38.02   72 16.4   2.134   2.169    78    9.2  21:04 (176, 53)  
June 29  14 32.01   68  6.7   2.243   2.275    78    9.4  21:04 (169, 56)

* 46P/Wirtanen

It brightens up to 10 mag in summer. But 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)  
June 22   4 52.83   19 59.9   2.013   1.078    16   10.9   2:59 (237,-10)  
June 29   5 23.96   21 29.4   2.004   1.062    15   10.6   3:02 (236, -9)

* C/2012 L2 ( LINEAR )

Now it is so bright as 10.5 mag (May 19, Chris Wyatt). 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)  
June 22   6 46.00  -10 30.1   2.342   1.626    35   12.5  21:04 (102,-35)  
June 29   7  1.75  -13 32.3   2.351   1.664    37   12.6  21:04 (101,-39)

* 246P/2010 V2 ( NEAT )

It brightened up to 12 mag in 2012. It is bright as 14.1 mag still now (May 19, Chris Wyatt). 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)  
June 22  19 53.34  -32  9.3   2.034   2.982   154   12.9   1:54 (  0, 23)  
June 29  19 49.03  -33  2.0   2.014   2.991   160   12.9   1:22 (  0, 22)

* C/2006 S3 ( LONEOS )

It brightened up to 11-12 mag in 2012. Now it is bright as 11.0 mag (June 3, Juan Jose Gonzalez). 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)  
June 22  13 24.02  -10 36.3   5.599   6.065   112   13.1  21:04 ( 33, 38)  
June 29  13 20.21  -10 21.2   5.747   6.092   105   13.2  21:04 ( 42, 35)

* 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)  
June 22   5 36.25   25  5.8   2.658   1.652     6   13.3   2:59 (226,-13)  
June 29   5 52.70   22 39.8   2.604   1.608     8   13.1   3:02 (230,-13)

* C/2010 S1 ( LINEAR )

Now it is 13.8 mag (June 11, 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. It locates somewhat low in the Southern Hemisphere. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 22  20 48.93   33 13.1   5.466   5.904   110   13.3   2:49 (  0, 88)  
June 29  20 42.09   33  1.7   5.394   5.907   115   13.2   2:15 (  0, 88)

* 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)  
June 22   7 16.90   27 17.9   4.184   3.227    17   13.7  21:04 (128, -4)  
June 29   7 23.59   26 57.0   4.118   3.132    12   13.5  21:04 (131, -8)

* 29P/Schwassmann-Wachmann 1

Now it is 12.5 mag and visible visually (June 18, Chris Wyatt). 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 22  13 35.00  -20 56.4   5.659   6.210   118   13.7  21:04 ( 25, 30)  
June 29  13 35.07  -20 45.8   5.756   6.209   112   13.7  21:04 ( 32, 27)

* 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)  
June 22   9  4.50   50 16.1   4.508   3.845    44   14.1  21:04 (135, 26)  
June 29   9  7.76   50 20.4   4.531   3.817    40   14.1  21:04 (137, 22)

* 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)  
June 22   0 47.62   11 55.0   2.040   2.031    75   14.1   2:59 (279, 34)  
June 29   0 56.58   12  0.7   2.027   2.097    79   14.3   3:02 (283, 38)

* 26P/Grigg-Skjellerup

It tends to brighten very rapidly near the perihelion. It was so faint as 17.8 mag on May 25, but it brightened rapidly up to 15.5 mag on June 8 (Hidetaka Sato). 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)  
June 22   9 54.23    7 57.6   1.239   1.102    57   15.4  21:04 ( 90, 15)  
June 29  10 22.84    8  2.3   1.224   1.090    57   14.2  21:04 ( 89, 15)

* 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 14.3 mag (June 11, 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)  
June 22  13 20.54   20 28.4   3.162   3.461    98   14.4  21:04 ( 65, 62)  
June 29  13 18.14   20 46.6   3.335   3.519    91   14.6  21:04 ( 74, 57)

* (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. It locates high in the Southern Hemisphere. But it still locates very low in the Northern Hemisphere. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 22   0 43.24  -11 53.5   2.807   2.911    85   14.5   2:59 (301, 19)  
June 29   0 49.09  -11 47.6   2.728   2.923    90   14.4   3:02 (305, 24)

* 117P/Helin-Roman-Alu 1

Now it is 14.0 mag (June 3, 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)  
June 22  14  4.77  -10 23.4   2.682   3.335   122   14.6  21:04 ( 21, 42)  
June 29  14  4.93  -10 42.3   2.755   3.322   115   14.6  21:04 ( 29, 40)

* C/2012 K1 ( PanSTARRS )

Now it is 14.2 mag and visible visually (June 11, Sandor Szabo). 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)  
June 22  16 23.33   21 43.8   4.731   5.426   128   14.7  22:19 (  0, 77)  
June 29  16 16.03   21 40.0   4.722   5.360   124   14.7  21:45 (  0, 77)

* C/2012 S3 ( PanSTARRS )

Now it is 15.3 mag (June 12, Catalina Sky Survey). 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)  
June 22  21 43.48   16 30.3   1.858   2.440   112   15.2   2:59 (329, 69)  
June 29  21 32.14   14  8.1   1.716   2.416   122   15.0   3:02 (358, 69)

* C/2009 F4 ( McNaught )

Now it is 14.1 mag (Mar. 5, Hidetaka Sato). It will be fading slowly after this. But it keeps 15 mag in 2013. It becomes temporarily low in May, but will be observable in good condition again after June in the Southern Hemisphere. It is not observable now in the Northern Hemisphere. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 22   3 57.01  -23 55.8   7.210   6.700    56   15.1   2:59 (283,-25)  
June 29   4  0.12  -23 43.2   7.185   6.728    59   15.1   3:02 (286,-19)

* 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)  
June 22  12 56.43  -18 28.9   2.892   3.366   109   15.2  21:04 ( 36, 28)  
June 29  12 52.52  -16 12.6   3.027   3.373   101   15.3  21:04 ( 44, 26)

* 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)  
June 22   2 56.64  -42 39.4   2.726   2.717    78   15.5   2:59 (307,-22)  
June 29   3  9.26  -42 57.5   2.749   2.776    80   15.6   3:02 (309,-20)

* C/2013 G6 ( Lemmon )

It brightened very rapidly. Now it is so bright as 15.3 mag (June 3, Toshiyuki Takahashi). It keeps observable in good condition for a while in the Southern Hemipshere. It will be unobservable in late June in the Northern Hemisphere. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 22  11 37.01  -18 41.3   1.792   2.087    91   15.6  21:04 ( 52, 17)  
June 29  11 25.85  -18 50.4   1.931   2.073    83   15.6  21:04 ( 58, 10)

* C/2009 P1 ( Garradd )

It kept as bright as 6-7 mag for a long time from 2011 summer to 2012 spring. Now it is fading. But it is bright as 15.9 mag still now (Apr. 13, Ken-ichi Kadota). Now it is not observable in the Northern Hemisphere. In July, it will be too low to observe also in the Southern Hemipshere. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 22   8 21.68   -7 29.2   6.838   6.175    45   15.7  21:04 ( 90,-14)  
June 29   8 24.51   -7 42.6   6.960   6.234    41   15.8  21:04 ( 94,-19)

* C/2013 F3 ( McNaught )

Now it is 17.4 mag (June 21, Mt. Lemmon Survey). It keeps 16 mag and observable in good condition until July. But actually, it is fainter than expected recently. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 22  17 50.82   26 34.8   1.485   2.275   129   15.9  23:45 (  0, 82)  
June 29  17 32.60   29 58.7   1.548   2.287   124   16.0  23:00 (  0, 85)

* C/2013 G5 ( Catalina )

It will approach to the Sun down to 0.9 A.U., and to the Earth down to 0.4 A.U. in September. Then it is expected to brighten up to 11-12 mag. Now it is 17.2 mag (May 29, Taras Prystavski). It looks diffuse. In the Northern Hemisphere, it keeps observable in good condition until mid September while brightening rapidly. In the Southern Hemisphre, it keeps locating low for a while. However, it will getting higher after August, and it keeps observable in good condition after that, until the comet fades out. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 22  13 30.16   50 36.8   1.235   1.527    84   16.3  21:04 (139, 67)  
June 29  13 29.89   49 12.1   1.183   1.442    81   16.0  21:04 (131, 63)

* C/2012 V1 ( PanSTARRS )

It is expected to brighten rapidly and to be observable at 15 mag in good condition from July to August. But actually, it is not detected, fainter than 20 mag (May 19, Hidetaka Sato). It can have been already disintegrated. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 22  23 39.30   22 50.9   1.931   2.119    86   16.2   2:59 (278, 53)  
June 29  23 24.25   23  4.7   1.757   2.107    95   16.0   3:02 (288, 62)

* 63P/Wild 1

Emmanuel Jehin detected the small outburst on May 15. Now it is bright and visible visually at 12.7 mag (June 1, Carlos Labordena). 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 22  11  8.76   -2 20.6   2.021   2.076    78   16.0  21:04 ( 69, 23)  
June 29  11 20.19   -4 17.1   2.111   2.100    75   16.3  21:04 ( 70, 19)

* P/2012 F2 ( PanSTARRS )

Now it is 16.5 mag (Apr. 14, J. F. Hernandez). 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)  
June 22  18 41.93   -5 50.7   1.972   2.947   160   16.3   0:42 (  0, 49)  
June 29  18 37.98   -5 27.4   1.973   2.957   162   16.4   0:11 (  0, 50)

* P/2012 B1 ( PanSTARRS )

Now it is 14.6 mag and visible visually (June 11, Sandor Szabo). 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)  
June 22  11 58.49    3 26.7   3.733   3.829    87   16.4  21:04 ( 65, 36)  
June 29  12  2.58    2 46.2   3.830   3.828    82   16.4  21:04 ( 69, 31)

* 184P/Lovas 2

It was predicted to be 17 mag in late May. But actually, it was much fainter, 19-20 mag (May 26, Damian Peach). It was expected to be bright as 16 mag and observable in good condition from summer to autumn. But it can be 18-19 mag at best. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 22   0 42.49    6  4.8   1.263   1.453    78   16.6   2:59 (286, 31)  
June 29   1  4.19    8 28.4   1.218   1.433    79   16.5   3:02 (285, 35)

* 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)  
June 22  23 43.71   18 18.9   1.931   2.133    86   16.7   2:59 (284, 50)  
June 29  23 53.06   19 23.7   1.866   2.138    90   16.7   3:02 (287, 55)

* C/2011 O1 ( LINEAR )

Now it is 16.1 mag (Mar. 4, Hidetaka Sato). 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)  
June 22   4 53.20  -41 55.1   4.994   4.697    67   16.7   2:59 (298,-42)  
June 29   5  1.08  -41 32.4   5.014   4.729    68   16.7   3:02 (299,-38)

* 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. 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)  
June 22  22 51.43  -20 28.2   1.819   2.414   113   17.0   2:59 (330, 29)  
June 29  22 55.95  -19 52.2   1.700   2.365   118   16.8   3:02 (336, 32)

* C/2013 J2 ( McNaught )

Now it is 16.3 mag (June 18, Catalina Sky Survey). It is observable at 16.5 mag in good condition from July to September. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 22  21 38.39   -8 37.3   1.662   2.408   126   16.9   2:59 (346, 45)  
June 29  21 40.67   -7  9.3   1.598   2.399   131   16.8   3:02 (356, 48)

* 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)  
June 22  16 52.48  -12 53.0   2.256   3.231   160   17.0  22:49 (  0, 42)  
June 29  16 48.34  -13  1.4   2.283   3.225   153   17.0  22:17 (  0, 42)

* 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)  
June 22   1 14.46  -18  8.7   3.092   3.111    81   17.4   2:59 (300, 10)  
June 29   1 22.95  -18  7.8   2.981   3.080    85   17.3   3:02 (304, 13)

* 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)  
June 22   2 18.07  -66  0.5   4.694   4.955    98   17.3   2:59 (333,-28)  
June 29   2 16.21  -67 17.4   4.655   4.967   101   17.3   3:02 (336,-25)

* C/2012 A2 ( LINEAR )

It was observed at 15-16 mag in 2012. Now it is fading. It has already faded down to 16.4 mag (June 8, A. Diepvens). It will be fainter than 18 mag in autumn. It locates low in the Southern Hemisphere. By the way, a few visual observers reported it was so bright as 10-11 mag in 2012. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 22   2 15.69   39 10.0   4.672   4.095    50   17.3   2:59 (240, 29)  
June 29   2 17.06   39  3.5   4.615   4.126    55   17.4   3:02 (243, 34)

* C/2013 G2 ( McNaught )

Now it is 16.7 mag (June 8, Ken-ichi Kadota). It will be fading after this. It locates low in the Northern Hempshere. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 22  18 24.48  -21 49.3   2.088   3.102   174   17.5   0:26 (  0, 33)  
June 29  18  9.53  -19 47.6   2.143   3.155   173   17.6  23:37 (  0, 35)

* 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 18.1 mag, fainter than this ephemeris (Apr. 11, Hidetaka Sato). 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 22  22 38.83  -17 56.2   3.037   3.597   115   17.5   2:59 (332, 32)  
June 29  22 39.71  -18 16.8   2.968   3.613   122   17.5   3:02 (340, 34)

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

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)  
June 22  19 10.64  -17 39.1   5.633   6.612   163   17.6   1:11 (  0, 37)  
June 29  19  8.01  -17 43.1   5.594   6.597   169   17.5   0:41 (  0, 37)

* 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)  
June 22   0 41.16   18 55.0   4.517   4.349    74   17.7   2:59 (273, 39)  
June 29   0 40.68   18 21.8   4.393   4.349    80   17.6   3:02 (279, 45)

* 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)  
June 22  23 24.73   11 23.8   9.615   9.738    93   17.8   2:59 (296, 49)  
June 29  23 25.21   11 24.5   9.511   9.745   100   17.8   3:02 (305, 55)

* 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)  
June 22  17 49.60   -2  2.7   7.748   8.701   158   17.8  23:46 (  0, 53)  
June 29  17 47.35   -2  3.9   7.726   8.666   156   17.8  23:16 (  0, 53)

* 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)  
June 22  22 18.64    8 42.9   8.787   9.179   109   17.8   2:59 (320, 58)  
June 29  22 15.75    8 41.2   8.699   9.199   116   17.8   3:02 (335, 62)

* 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 2012 July. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 22  14 19.43  -17 56.8   4.450   5.137   127   17.8  21:04 ( 14, 36)  
June 29  14 13.79  -18 19.1   4.529   5.114   120   17.9  21:04 ( 23, 33)

* P/2013 G1 ( Kowalski )

Now it is 17.6 mag (June 3, Mt. Lemmon Survey). It keeps 18 mag for a long time from 2013 to 2014. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 22  15  8.56  -15 16.8   2.719   3.543   138   17.9  21:05 (  0, 40)  
June 29  15  7.66  -15  7.6   2.773   3.529   131   17.9  21:04 (  9, 39)

* 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 17.0 mag, a bit brighter than this ephemeris (June 13, A. Maury, J. F. Soulier). 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 22  17 21.34  -48 45.7   1.932   2.877   153   18.1  23:17 (  0,  6)  
June 29  17 13.17  -48 12.3   1.917   2.847   150   18.0  22:42 (  0,  7)

* 91P/Russell 3

It was predicted to be 17 mag. But actually, it is much fainter, 19.0 mag (June 3, Hidetaka Sato). 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 22  18  8.39  -14 15.3   1.696   2.704   170   18.5   0:09 (  0, 41)  
June 29  18  3.20  -13 41.6   1.711   2.715   168   18.5  23:32 (  0, 41)

* 98P/Takamizawa

It was expected to be bright as 14 mag and observable in excellent condition in summer. But actually, it is so faint as 17.8 mag, much fainter than expected by 4 mag (June 12, Katsumi Yoshimoto). 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 22  14 56.77   -1 10.9   0.893   1.730   129   18.5  21:04 (  4, 54)  
June 29  14 59.50   -2 54.8   0.916   1.714   124   18.5  21:04 ( 14, 51)

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