Weekly Information about Bright Comets (2013 Oct. 26: South)

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Updated on October 27, 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/2013 R1 ( Lovejoy )

Now it is so bright as 8.2 mag (Oct. 24, Chris Wyatt). 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 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 will not be observable from mid November to early February. But it keeps observable in good condition until mid November when the comet will brighten up to 6 mag.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 26   7 38.48    6  2.2   0.761   1.322    96    8.1   3:33 (217, 42)  
Nov.  2   8  9.98   12  6.4   0.612   1.231    97    7.3   3:24 (217, 35)  

* 2P/Encke

It brightened rapidly as expected. Now it is so bright as 7.9 mag (Oct. 16, Juan Jose Gonzalez). It will pass the perihelion on Nov. 21, and will brighten up to 7 mag. In the Northern Hemisphere, it keeps observable in good condition in the morning sky until mid November. But it will be getting lower rapidly after this. It is not observable in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 26  11 49.39   19 12.0   0.522   0.729    45    7.9   3:33 (253,-10)  
Nov.  2  12 41.65    7 49.3   0.617   0.600    34    7.7   3:24 (268,-11)  

* C/2012 X1 ( LINEAR )

Although it was predicted to be 14 mag, it is extremely bright as 8.1 mag in outburst now (Oct. 23, Todd Augustyniak). 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)  
Oct. 26  13 17.05   23 57.5   2.928   2.229    37    8.3   3:33 (261,-30)  
Nov.  2  13 35.13   22 45.7   2.838   2.169    39    8.1   3:24 (262,-30)  

* C/2012 S1 ( ISON )

Now it is 9.7 mag (Oct. 16, Syogo Utsunomiya). It will approach to the sun down to only 0.01 A.U. on Nov. 28, and is expected to be a great comet. It keeps visible with naked eyes from November to January, and can be extremely bright as Venus or more at the highlight. But recently, it is fainter than originally expected by 2-3 mag. It may be 3 mag at best actually when it is observable in the morning sky. 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)  
Oct. 26  10 45.56    9 45.7   1.402   1.137    53    9.2   3:33 (252,  7)  
Nov.  2  11 17.54    5 41.5   1.202   0.973    51    8.3   3:24 (258,  7)  

* C/2012 V2 ( LINEAR )

It became much brighter than expected. Now it is so bright as 8.9 mag (Oct. 12, Michael Mattiazzo). 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)  
Oct. 26  11  9.12  -46 28.9   2.229   1.758    49   10.2   3:33 (308, 31)  
Nov.  2  11 33.45  -49 53.4   2.285   1.813    49   10.6   3:24 (312, 31)  

* 154P/Brewington

It brightened very rapidly. Now it is so bright as 10.9 mag (Oct. 24, Chris Wyatt). 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)  
Oct. 26  22  0.53   -0 46.3   0.970   1.691   118   11.3  19:55 (174, 55)  
Nov.  2  22  4.75    1  9.6   1.003   1.669   113   11.1  20:04 (161, 52)  

* C/2013 N4 ( Borisov )

Now it is 10.8 mag (Oct. 12, Seiichi Yoshida). 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)  
Oct. 26  11 44.38   -6 49.6   2.280   1.561    34   12.7   3:33 (275,  5)  
Nov.  2  11 56.97  -10 18.5   2.302   1.626    37   12.9   3:24 (277,  8)  

* 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 11.7 mag (Oct. 13, Seiichi Yoshida). 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)  
Oct. 26  18 46.96   53  8.7   3.236   3.371    89   12.8  19:55 (151, -9)  
Nov.  2  18 51.80   51 59.7   3.351   3.452    87   12.9  20:04 (147,-11)  

* C/2010 S1 ( LINEAR )

Now it is 12.4 mag (Oct. 3, 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)  
Oct. 26  19 15.73   13 41.5   6.061   6.006    82   13.6  19:55 (131, 26)  
Nov.  2  19 16.03   12 33.5   6.175   6.015    76   13.6  20:04 (123, 20)  

* 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)  
Oct. 26  15 45.13   11 47.8   4.963   4.191    35   13.7  19:55 ( 96,-13)  
Nov.  2  15 48.11   11 20.5   4.919   4.118    32   13.6  20:04 ( 91,-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)  
Oct. 26   0 17.77  -17 47.3   2.278   3.109   140   13.9  21:57 (180, 73)  
Nov.  2   0 14.05  -17 25.5   2.349   3.119   133   14.0  21:26 (180, 72)  

* C/2011 J2 ( LINEAR )

Now it is 13.4 mag and visible visually (Oct. 12, Seiichi Yoshida). 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)  
Oct. 26  11 17.58   66 16.7   3.446   3.488    84   14.0   3:33 (207,-28)  
Nov.  2  11 32.30   68 49.4   3.349   3.479    89   13.9   3:24 (204,-29)  

* 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). It is not observable now. However, it will be observable again at 14 mag after late November in the Northern Hemisphere, or mid December in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 26  13 23.28  -12 23.8   7.574   6.595     9   13.9   3:33 (294,-11)  
Nov.  2  13 24.84  -12 40.6   7.577   6.626    15   14.0   3:24 (292, -8)  

* 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 14.6 mag (Oct. 13, Seiichi Yoshida). 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)  
Oct. 26   6 41.09   41 39.1   1.939   2.502   113   14.4   3:33 (190, 12)  
Nov.  2   6 46.75   41 43.2   1.838   2.471   118   14.1   3:24 (187, 13)  

* 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)  
Oct. 26  14 36.32  -23 47.8   7.147   6.188    14   14.2  19:55 ( 57, -4)  
Nov.  2  14 41.94  -24 11.4   7.161   6.186    10   14.2  20:04 ( 51, -9)  

* 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)  
Oct. 26  12 44.76  -58 28.7   3.240   2.684    48   14.9   3:33 (327, 23)  
Nov.  2  13  8.13  -59 45.4   3.325   2.753    47   15.1   3:24 (328, 23)  

* 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. In the Northern Hemisphere, it is already unobservable. It will be unobservable soon also in the Southern Hemisphere, 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)  
Oct. 26  15 57.36  -21 53.5   3.976   3.146    29   15.0  19:55 ( 70,  9)  
Nov.  2  16  8.24  -22 32.2   4.011   3.138    24   15.0  20:04 ( 66,  5)  

* 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 brighter than predicted. It has already brightened up to 15.4 mag (Sept. 29, Ken-ichi Kadota).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 26  18 23.73  -31 57.2   2.646   2.364    62   15.2  19:55 ( 77, 43)  
Nov.  2  18 36.79  -31  1.4   2.696   2.340    58   15.1  20:04 ( 75, 38)  

* 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)  
Oct. 26   5 16.78  -32  2.9   4.101   4.618   115   15.4   3:00 (180, 87)  
Nov.  2   5  9.16  -33 34.7   3.994   4.551   118   15.3   2:25 (180, 89)  

* 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)  
Oct. 26   3 50.37  -25 53.8   6.518   7.238   133   15.3   1:34 (180, 81)  
Nov.  2   3 45.84  -25 50.1   6.530   7.270   135   15.3   1:02 (180, 81)  

* 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. But it locates extremely low.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 26  12 25.78    5 55.4   2.504   1.716    29   15.6   3:33 (270,-11)  
Nov.  2  12 40.72    4 34.4   2.525   1.776    32   16.0   3:24 (271, -9)  

* C/2011 L4 ( PanSTARRS )

It passed the perihelion on Mar. 10, and brightened up to 0-1 mag. Now it is fading. It has already faded down to 16.0 mag (Oct. 20, J. M. Bosch, R. Olivera). In the Northern Hemisphere, it will be very low temporarily from November to December, but it keeps observable for a long time until the comet fades out. It is not observable in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 26  15 58.10   28 49.1   4.414   3.849    49   15.8  19:55 (112,-19)  
Nov.  2  16  4.89   27 59.6   4.517   3.932    48   16.0  20:04 (108,-24)  

* 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)  
Oct. 26  21 30.85    5  9.2   1.648   2.232   112   15.8  19:55 (164, 49)  
Nov.  2  21 38.34    5 24.5   1.733   2.250   108   16.0  20:04 (154, 46)  

* 246P/2010 V2 ( NEAT )

It brightened up to 12 mag in 2012. It is bright as 15.3 mag still now (Oct. 13, Ken-ichi Kadota). 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)  
Oct. 26  19 49.31  -34  2.3   3.215   3.207    80   15.8  19:55 ( 81, 60)  
Nov.  2  19 57.33  -33 32.9   3.323   3.222    75   16.0  20:04 ( 80, 55)  

* 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)  
Oct. 26   6 37.17   16 20.9   1.406   2.019   113   16.0   3:33 (194, 37)  
Nov.  2   6 40.77   16 24.2   1.364   2.044   119   15.8   3:24 (190, 38)  

* (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)  
Oct. 26  16 19.75   -1 42.7   0.678   0.596    35   16.1  19:55 ( 90,  3)  
Nov.  2  17 33.83    2 31.9   0.643   0.749    48   15.9  20:04 ( 99,  8)  

* C/2012 S3 ( PanSTARRS )

It brightened up to 14.5 mag in July (July 16, M. Brusa, L. Sempio). Now it is fading. In the Southern Hemisphere, it keeps observable for a long time until the comet fades out. It is not observable in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 26  17 53.45  -43 30.1   2.757   2.393    58   16.0  19:55 ( 59, 40)  
Nov.  2  17 56.11  -44 41.6   2.879   2.415    52   16.1  20:04 ( 56, 35)  

* 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)  
Oct. 26  19 32.02  -13 25.3   2.561   2.584    80   16.2  19:55 (110, 48)  
Nov.  2  19 39.68  -13 31.4   2.610   2.541    75   16.1  20:04 (104, 42)  

* 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)  
Oct. 26  11 43.69   -0 30.8   3.806   3.060    36   16.5   3:33 (269,  2)  
Nov.  2  11 53.70   -1 32.9   3.718   3.032    40   16.4   3:24 (269,  4)  

* 52P/Harrington-Abell

Now it is 17.6 mag (Oct. 16, Catalina Sky Survey). 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)  
Oct. 26   4 44.05   38 53.2   1.326   2.150   135   16.8   2:27 (180, 16)  
Nov.  2   4 44.20   39 46.8   1.250   2.117   141   16.5   2:00 (180, 15)  

* C/2013 E2 ( Iwamoto )

Fading slowly. It is bright as 14.4 mag still now (Oct. 3, Sandor Szabo). 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)  
Oct. 26   0 43.15   -3 17.6   2.366   3.294   155   16.5  22:23 (180, 58)  
Nov.  2   0 40.10   -3 57.2   2.487   3.365   147   16.7  21:52 (180, 59)  

* 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)  
Oct. 26   1 55.96   16  6.8   2.148   3.141   176   16.6  23:35 (180, 39)  
Nov.  2   1 51.51   15 32.0   2.147   3.131   171   16.6  23:03 (180, 39)  

* 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)  
Oct. 26  10 45.17  -37 34.4   2.829   2.325    50   16.8   3:33 (296, 32)  
Nov.  2  10 39.87  -39 41.2   2.779   2.364    55   17.1   3:24 (297, 37)  

* 257P/2012 F4 ( Catalina )

Now it is 16.4 mag (Oct. 14, Catalina Sky Survey). It will 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)  
Oct. 26   0 11.32    8 29.7   1.463   2.390   152   16.9  21:51 (180, 47)  
Nov.  2   0 10.98    6 58.7   1.530   2.413   145   17.0  21:23 (180, 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)  
Oct. 26   0 41.51   24  8.6   3.800   4.735   157   16.9  22:21 (180, 31)  
Nov.  2   0 34.35   22 16.7   3.876   4.774   151   17.0  21:46 (180, 33)  

* 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)  
Oct. 26   3  4.14   20 23.0   1.648   2.615   162   17.1   0:48 (180, 35)  
Nov.  2   3  0.16   19 49.6   1.624   2.609   170   17.0   0:16 (180, 35)  

* 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)  
Oct. 26   5 17.54   25  9.5   0.871   1.705   132   17.2   3:01 (180, 30)  
Nov.  2   5 14.75   25  1.5   0.868   1.748   139   17.1   2:31 (180, 30)  

* 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)  
Oct. 26   1 53.06  -26 14.6   1.808   2.658   141   17.3  23:32 (180, 81)  
Nov.  2   1 48.19  -25 46.1   1.815   2.641   138   17.2  23:00 (180, 81)  

* C/2012 J1 ( Catalina )

It brightened up to 12-13 mag from autumn to winter in 2012. Now it is fading. However, it is bright as 15.9 mag still now (Oct. 9, Ken-ichi Kadota). 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)  
Oct. 26   6 13.27    4 10.0   3.828   4.374   117   17.3   3:33 (189, 50)  
Nov.  2   6 12.30    3 13.7   3.788   4.417   123   17.4   3:24 (182, 52)  

* 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)  
Oct. 26  22 56.82   -8 31.8   3.759   4.459   129   17.4  20:37 (180, 64)  
Nov.  2  22 51.85  -10  0.4   3.881   4.472   120   17.5  20:04 (180, 65)  

* 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)  
Oct. 26   3  1.13   27 11.3  12.883  13.819   159   17.5   0:45 (180, 28)  
Nov.  2   2 59.07   27 12.8  12.827  13.791   165   17.4   0:15 (180, 28)  

* 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)  
Oct. 26   0 24.70   -8  5.2   2.593   3.479   148   17.5  22:04 (180, 63)  
Nov.  2   0 20.47   -8  9.9   2.615   3.442   140   17.5  21:33 (180, 63)  

* 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. It has already faded down to 17.4 mag (Oct. 1, K. Hills). 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)  
Oct. 26   3 19.64  -53 47.4   3.355   3.837   111   17.6   1:03 (  0, 71)  
Nov.  2   3 10.19  -53 23.0   3.427   3.900   111   17.7   0:26 (  0, 72)  

* 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)  
Oct. 26   7 17.03   16 41.1   1.615   2.091   103   17.7   3:33 (205, 34)  
Nov.  2   7 22.82   16 53.0   1.563   2.113   109   17.7   3:24 (202, 35)  

* 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)  
Oct. 26   3 15.39   11 52.1   1.216   2.182   161   17.8   0:59 (180, 43)  
Nov.  2   3 12.29   10 29.0   1.192   2.173   168   17.8   0:28 (180, 44)  

* 102P/Shoemaker 1

Now it is 17.6 mag (Oct. 13, Catalina Sky Survey). It will brighten up to 17 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)  
Oct. 26  23 24.03   30 18.2   1.160   2.021   139   17.9  21:04 (180, 25)  
Nov.  2  23 21.02   30 29.3   1.214   2.035   134   18.0  20:33 (180, 24)  

* C/2011 O1 ( LINEAR )

Now it is 18.1 mag (Oct. 8, K. Hills). In the Southern Hemisphere, it keeps observable in good condition for a long time while fading gradually. In the Northern Hemisphere, it keeps extremely low.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 26   5 40.40  -46 10.0   5.016   5.339   103   17.9   3:23 (  0, 79)  
Nov.  2   5 35.36  -46 23.5   5.020   5.377   105   18.0   2:51 (  0, 79)  

* 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. So it was expected to brighten up to 11-12 mag. However, it looked extremely diffuse on July 12 by Michael Jager. So the comet could be already disintegrated at that time. No observations have been reported after that. It keeps locating in good condition after this in the Southern Hemisphere. It is not observable in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 26  23  1.78  -68 56.6   0.823   1.321    92   21.7  20:46 (  0, 56)  
Nov.  2  23 45.85  -65 44.4   0.925   1.403    94   22.2  21:01 (  0, 60)  

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