Weekly Information about Bright Comets (2014 Oct. 18: North)

Japanese version
Home page
Updated on October 20, 2014
Last week South Next week

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.

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

* C/2012 K1 ( PanSTARRS )

Now it is so bright as 6.9 mag (Oct. 17, Marco Goiato). It will be observable in good condition in the Southern Hemisphere after this. But it keeps low in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 18   7 43.73  -29 57.2   1.050   1.348    82    6.7   4:43 (342, 23)  
Oct. 25   7  4.42  -39 53.7   0.976   1.419    92    6.7   4:49 (359, 15)  

* C/2013 V5 ( Oukaimeden )

The brightness evolution has slowed down just before the perihelion passage. But it brightened up to 6.5 mag in September (Sept. 21, Marco Goiato). Now it is fading, but bright as 9.5 mag still now (Oct. 18, Con Stoitsis). It will be unobservable soon also in the Southern Hemisphere. After this, it will be observable again in late December in the Northern Hemisphere, or in mid January in the Southern Hemisphere. But the comet will fade down to 13 mag.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 18  15 28.36  -18  5.0   1.431   0.755    29    9.2  18:46 ( 67,  1)  
Oct. 25  15 35.56  -15 50.6   1.643   0.843    24    9.7  18:38 ( 71,  0)  

* C/2013 A1 ( Siding Spring )

The brightness evolution had been slow, and has slowed down furthermore before the perihelion passage. It brightened up to 9.4 mag in September (Sept. 18, Chris Wyatt). However, it is already fading. It has already faded down to 11.0 mag (Oct. 16, Chris Wyatt). In the Southern Hemisphere, it will be unobservable in mid November. In the Northern Hemisphere, it is observable only in the evening low sky from late September to mid November. But it will be observable in excellent condition after 2015 January while the comet will be fading. It will pass extremely close to Mars on Oct. 19.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 18  17 37.81  -25 53.9   1.589   1.403    60   10.8  18:46 ( 41, 17)  
Oct. 25  17 37.40  -21 59.3   1.740   1.399    53   11.1  18:38 ( 47, 17)  

* C/2014 E2 ( Jacques )

It brightened up to 6.0 mag from July to August (July 24, Maik Meyer). Now it is fading. It has already faded down to 11.7 mag (Oct. 18, Con Stoitsis). It keeps observable in good condition until November in the Southern Hemisphere, or December in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 18  19  9.80    3 47.1   1.844   2.028    85   11.9  18:46 ( 36, 53)  
Oct. 25  19 11.84    1 55.8   2.069   2.125    79   12.5  18:38 ( 41, 49)  

* C/2014 Q2 ( Lovejoy )

Now it is 12.4 mag and visible visually (Oct. 1, Chris Wyatt). It will approach to the earth in December and January, and it is expected to brighten up to 7-8 mag. In the Southern Hemisphere, it keeps observable in excellent condition until late January. In the Northern Hemisphere, it keeps extremely low until mid December. But after that, it will be observable in excellent condition.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 18   7 59.86  -42 56.1   1.930   1.982    78   12.4   4:43 (343,  9)  
Oct. 25   8  3.18  -43 21.8   1.801   1.911    80   12.1   4:49 (349, 10)  

* C/2012 X1 ( LINEAR )

It brightened rapidly in outburst in mid October in 2013. It will be fading gradually after this. It has already faded down to 13.0 mag (Oct. 18, Con Stoitsis). In the Southern Hemisphere, it keeps observable in good condition for a long time until the comet fades out. In the Northern Hemisphere, it keeps extremely low after this.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 18  21 39.50  -49 49.0   2.985   3.344   102   12.2  19:53 (  0,  5)  
Oct. 25  21 42.67  -49  8.2   3.136   3.411    97   12.4  19:28 (  0,  6)  

* 32P/Comas Sola

Now it is 14.5 mag (Oct. 4, Jakub Cerny). In the Northern Hemisphere, it is expected to be observable at 12-13 mag in excellent condition from 2014 summer to 2015 spring. But actually, it is fainter than this ephemeris. 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. 18   9 32.64   22 18.5   2.183   2.001    66   13.0   4:43 (275, 48)  
Oct. 25   9 48.32   21 34.7   2.121   2.002    69   12.9   4:49 (279, 51)  

* C/2014 R1 ( Borisov )

Now it is so bright as 12.2 mag (Oct. 6, Taras Prystavski). It keeps 13-14 mag until 2015 spring. But it keeps locating low in the morning sky. In the Southern Hemisphere, it is too low to observe until December.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 18  10 53.74   10 41.3   1.972   1.430    43   13.5   4:43 (275, 25)  
Oct. 25  11 19.17    8 43.2   1.928   1.399    44   13.4   4:49 (278, 26)  

* C/2014 Q3 ( Borisov )

Brightening rapidly. Now it is so bright as 12.1 mag (Oct. 6, Taras Prystavski). In the Northern Hemisphere, it keeps observable in good condition until the comet will fade out in next spring. It is not observable in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 18   7 27.76   60 58.8   1.237   1.699    98   13.9   4:43 (196, 63)  
Oct. 25   7 58.92   69 45.3   1.177   1.679   100   13.7   4:49 (189, 55)  

* C/2013 US10 ( Catalina )

Now it is 14.3 mag (Oct. 16, Chris Wyatt). Getting brighter than originally expected, and it is already visible visually. It is expected to brighten up to 4 mag from autumn to winter in 2015. It is observable in good condition in the Southern Hemisphere until the highlight, or in the Northern Hemisphere after the highlight.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 18  22 47.03  -24 44.6   4.546   5.214   127   14.0  20:59 (  0, 30)  
Oct. 25  22 41.40  -25  7.3   4.579   5.145   119   14.0  20:26 (  0, 30)  

* 29P/Schwassmann-Wachmann 1

New outburst occured on Sept. 30, and it brightened up to 13 mag (Sept. 30, Jean-Francois Soulier). It is already unobservable in the Northern Hemisphere. It will be unobservable in late October also in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 18  15 57.99  -28  7.5   6.839   6.102    39   14.1  18:46 ( 55,  0)  
Oct. 25  16  3.53  -28 16.3   6.901   6.100    33   14.1  18:38 ( 57, -3)  

* 4P/Faye

Now it is 14.3 mag and visible visually (Sept. 22, Seiichi Yoshida). It keeps observable for a long time after this while the comet will be fading gradually.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 18   9 11.87    7 30.8   2.336   2.143    66   14.3   4:43 (296, 44)  
Oct. 25   9 21.65    6 27.5   2.298   2.183    70   14.4   4:49 (303, 47)  

* (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. 18   4 56.99   19 46.9   2.689   3.407   129   14.5   3:13 (  0, 75)  
Oct. 25   4 54.35   19 57.6   2.615   3.407   136   14.4   2:43 (  0, 75)  

* 117P/Helin-Roman-Alu 1

Now it is 14.0 mag (Sept. 13, Mitsunori Tsumura). 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)  
Oct. 18  20 37.31  -28 29.2   2.890   3.215    99   14.4  18:51 (  0, 27)  
Oct. 25  20 42.05  -27 54.3   2.996   3.225    94   14.5  18:38 (  3, 27)  

* 108P/Ciffreo

Now it is 14.0 mag (Oct. 19, Mike Wolle). It will be observable at 14.5 mag in excellent condition from October to December.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 18   5 19.21   22 13.1   0.941   1.709   123   14.7   3:35 (  0, 77)  
Oct. 25   5 25.37   23 55.6   0.898   1.710   129   14.6   3:13 (  0, 79)  

* C/2012 F3 ( PanSTARRS )

Now it is 14.8 mag (Sept. 16, Taras Prystavski). It is expected to brighten up to 13 mag and to be observable in good condition in 2015. It becomes unobservable temporarily from October to January.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 18  15  9.79   -8 47.4   4.679   3.796    24   14.6  18:46 ( 77,  2)  
Oct. 25  15 19.07   -9 25.5   4.686   3.770    20   14.6  18:38 ( 78,  0)  

* C/2014 N3 ( NEOWISE )

Now it is 15.0 mag (Sept. 14, Toshiyuki Takahashi). It keeps 15 mag for a long time from 2014 to 2015. It is observable in excellent condition in 2014 in the Southern Hemisphere, or in 2015 in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 18   0 48.13  -33 41.7   3.312   4.085   135   14.7  23:00 (  0, 21)  
Oct. 25   0 40.23  -32 36.6   3.335   4.067   131   14.7  22:24 (  0, 23)  

* C/2011 J2 ( LINEAR )

Now it is 14.2 mag (Oct. 4, Jakub Cerny). It keeps 13-14 mag and observable in good condition in the Northern Hemisphere for a long time from 2013 to 2014. It locates low in the Southern Hemisphere. Fragment B is also visible at 17.0 mag (Sept. 29, F. Garcia).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 18  22 52.76   37 44.4   3.610   4.369   134   14.8  21:05 (180, 87)  
Oct. 25  22 46.72   35 15.3   3.687   4.407   131   14.9  20:31 (180, 90)  

* C/2010 S1 ( LINEAR )

Now it is 13.3 mag (Sept. 22, Seiichi Yoshida). It keeps bright at 13-14 mag for a long time until 2014.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 18  18 20.03  -10 31.8   7.170   6.914    71   14.9  18:46 ( 41, 35)  
Oct. 25  18 20.69  -11  6.0   7.308   6.939    64   14.9  18:38 ( 45, 32)  

* 88P/Howell

It will brighten up to 8-9 mag in 2015 spring. But it is not observable now. In the Southern Hemisphere, it will become observable in January, then it keeps observable in good condition after that. In the Northern Hemisphere, it keeps extremely low and hard to observe from December to 2015 June. It will be observable in good condition after June while the comet will be fading gradually.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 18  13 21.79   -6 40.4   3.174   2.180     3   15.1   4:43 (268,-15)  
Oct. 25  13 35.52   -8  7.7   3.119   2.134     6   14.9   4:49 (272,-12)  

* P/2014 L2 ( NEOWISE )

Now it is 13.8 mag (Sept. 16, Taras Prystavski). It is observable at 14 mag in excellent condition until November.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 18  23 46.46   -6 56.7   1.485   2.397   149   15.1  21:59 (  0, 48)  
Oct. 25  23 46.42   -7  1.8   1.554   2.420   142   15.2  21:31 (  0, 48)  

* C/2006 S3 ( LONEOS )

It brightened up to 11-12 mag in 2012. It has already faded down to 14.9 mag (Aug. 12, Taras Prystavski). Now it is not observable. It will be observable at 15 mag in good condition again in 2015.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 18  12  5.13   -8 43.6   9.282   8.359    20   15.1   4:43 (280,  0)  
Oct. 25  12  6.43   -8 58.6   9.268   8.396    27   15.1   4:49 (285,  6)  

* C/2014 R4 ( Gibbs )

Now it is 15.7 mag (Sept. 15, Hidetaka Sato). It keeps 15 mag from autumn to winter. It moves southwards fast in winter.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 18   8 52.45   18 22.5   1.822   1.818    73   15.4   4:43 (288, 54)  
Oct. 25   9  3.08   14 46.3   1.754   1.818    77   15.3   4:49 (299, 56)  

* C/2014 AA52 ( Catalina )

Now it is 16.5 mag (Sept. 28, Taras Prystavski). It keeps 14-15 mag for a long time from 2014 autumn to 2015 autumn. In the Southern Hemisphere, it keeps observable in excellent condition for a long time. In the Northern Hemisphere, it is only observable in the low sky from September to October. Then it will be unobservable until 2015 June.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 18   9 21.57  -33 46.5   2.865   2.549    61   15.5   4:43 (325, 10)  
Oct. 25   9 22.74  -37 24.2   2.738   2.500    65   15.4   4:49 (332, 11)  

* C/2014 A4 ( SONEAR )

Now it is 15.8 mag (Sept. 7, Taras Prystavski). It is expected to brighten up to 14 mag from 2015 to 2016. It is observable in good condition in the Southern Hemisphere. It locates somewhat low in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 18   5  9.60  -24 21.7   4.435   4.963   116   15.7   3:25 (  0, 31)  
Oct. 25   5  1.91  -24 51.8   4.337   4.933   121   15.6   2:50 (  0, 30)  

* 17P/Holmes

It brightened up to 2 mag by unusual major outburst in 2007. It brightened up to 12.6 mag in this apparition (June 25, Taras Prystavski). Now it is fading. It has already faded down to 16.7 mag (Oct. 2, Taras Prystavski). In the Northern Hemisphere, it keeps observable until it fades out in 2015. In the Southern Hemisphere, it keeps extremely low after this.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 18   5 14.21   48 49.5   1.927   2.564   119   15.7   3:30 (180, 76)  
Oct. 25   5 12.59   49 34.1   1.891   2.593   125   15.9   3:01 (180, 75)  

* 110P/Hartley 3

Now it is 17.0 mag (Oct. 2, Taras Prystavski). It will brighten up to 15 mag and will be observable in excellent condition from November to February 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. 18   6 52.41   29 51.4   2.086   2.503   102   15.9   4:43 (313, 83)  
Oct. 25   6 58.25   29 34.7   1.998   2.497   108   15.7   4:46 (  0, 85)  

* 284P/2013 J1 ( McNaught )

Now it is 13.9 mag (Sept. 22, Seiichi Yoshida). First return of a new periodic comet which brightened up to 13 mag in 2007. It will be fading after this. But it keeps observable until February when it becomes fainter than 18 mag.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 18  23 27.13  -16  9.6   1.456   2.311   140   15.9  21:40 (  0, 39)  
Oct. 25  23 27.32  -16 16.2   1.518   2.318   133   16.0  21:12 (  0, 39)  

* 201P/LONEOS

Now it is 15.6 mag (Sept. 13, Mitsunori Tsumura). It will brighten up to 15 mag and will be observable in excellent condition from winter to spring.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 18  22 20.69  -18 46.8   0.880   1.669   125   16.1  20:33 (  0, 36)  
Oct. 25  22 20.91  -17 41.8   0.890   1.626   119   15.9  20:06 (  0, 37)  

* C/2013 V2 ( Borisov )

Now it is 16.1 mag (Sept. 30, Taras Prystavski). In the Northern Hemisphere, it keeps 15-16 mag and observable in excellent condition for a long time until early summer in 2015. In the Southern Hemisphere, it is not observable until mid January.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 18  11 43.46   37 20.8   4.016   3.508    53   16.0   4:43 (242, 28)  
Oct. 25  11 55.04   36 34.2   3.962   3.509    56   15.9   4:49 (245, 32)  

* 15P/Finlay

Now it is 17.5 mag (Oct. 8, Taras Prystavski). It will brighten very rapidly, up to 10 mag in January. In the Northern Hemisphere, it will be geting higher gradually. In the Southern Hemisphere, it will be getting lower gradually, and it keeps extremely low after January.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 18  16 50.44  -27 45.8   1.787   1.386    50   16.7  18:46 ( 47,  8)  
Oct. 25  17 11.09  -28  0.8   1.761   1.323    48   16.1  18:38 ( 47,  8)  

* C/2013 V4 ( Catalina )

Now it is 16.5 mag (Sept. 27, Taras Prystavski). It keeps observable at 15-16 mag for a long time from 2015 to 2016. In the Northern Hemisphere, it is observable in excellent condition. It locates somewhat low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 18   3 59.38   22 28.9   5.008   5.825   141   16.2   2:15 (  0, 78)  
Oct. 25   3 55.11   23  2.3   4.922   5.802   149   16.1   1:44 (  0, 78)  

* C/2011 KP36 ( Spacewatch )

Now it is 16.7 mag (Sept. 23, Taras Prystavski). Distant object, but it keeps observable at 14 mag for a long time from 2015 to 2016.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 18  19  0.21   -6 26.6   6.472   6.403    81   16.1  18:46 ( 32, 43)  
Oct. 25  19  3.12   -6 43.1   6.547   6.373    75   16.1  18:38 ( 37, 41)  

* C/2014 Q1 ( PanSTARRS )

It will approach to the sun down to 0.3 a.u. in 2015 July, and it is expected to be bright. Now it is 16.0 mag (Oct. 8, Taras Prystavski). It keeps observable while the comet will be brightening gradually until January when the comet will be 15 mag. The condition is bad after that and it will be hard to observe. But in the Southern Hemisphere, it will be observable after mid July in 2015, and keeps observable while the comet will be fading gradually. In the Northern Hemisphere, it is extremely hard to observe after 2015.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 18  23 11.81  -30  0.6   3.514   4.206   128   16.5  21:24 (  0, 25)  
Oct. 25  23  5.59  -29 49.1   3.520   4.126   121   16.4  20:50 (  0, 25)  

* 16P/Brooks 2

It brightened up to 14.6 mag in summer (July 8, Hidetaka Sato). Now it is fading. It has already faded down to 17.8 mag (Sept. 26, Taras Prystavski). It is fading much faster than predicted. The condition is good in the Northern Hemispehre. It keeps observable until next February when the comet will be fainter than 18 mag. It locates somewhat low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 18   8 16.50   15 29.5   1.867   1.983    81   16.6   4:43 (302, 59)  
Oct. 25   8 24.98   14 55.1   1.829   2.026    86   16.7   4:49 (312, 62)  

* 305P/2014 N1 ( Skiff )

First return of a new periodic comet discovered in 2004. Now it is 17.0 mag (Oct. 8, Taras Prystavski). It will be observable in excellent condition from autumn to winter. It is expected to brighten very rapidly, and brighten up to 16 mag from November to December.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 18  21 27.84    8  9.2   0.675   1.458   120   17.0  19:41 (  0, 63)  
Oct. 25  21 40.35    7 22.2   0.682   1.437   116   16.7  19:27 (  0, 62)  

* 19P/Borrelly

Now it is 18.6 mag (Oct. 4, D. Herald). It will brighten up to 9 mag in 2015 spring. But the condition of this apparition is bad. In the Southern Hemisphere, it keeps observable until winter when the comet will be 13 mag. But it is not observable around the brightest days. In the Northern Hemispehre, it keeps extremely low and hard to observe. It will be observable after 2015 autumn when the comet will fade out.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 18  20 20.69  -50 59.3   2.427   2.631    90   16.9  18:46 (  2,  4)  
Oct. 25  20 25.85  -49 57.8   2.462   2.582    85   16.8  18:38 (  4,  5)  

* 269P/2012 R2 ( Jedicke )

Now it is 17.0 mag (Oct. 2, Taras Prystavski). It will brighten up to 16 mag in winter, and will be observable in excellent condition.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 18   8 13.02   15 39.1   4.093   4.082    82   16.8   4:43 (303, 60)  
Oct. 25   8 17.29   15 12.8   3.989   4.081    88   16.8   4:49 (315, 64)  

* 44P/Reinmuth 2

Now it is 16.8 mag (Sept. 11, Taras Prystavski). It will keep 16-17 mag for a long time from 2014 summer to early 2016. It keeps observable in excellent condition until autumn in the Southern Hemisphere. It keeps low in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 18  17 53.01  -23  5.5   2.688   2.424    64   16.9  18:46 ( 39, 21)  
Oct. 25  18  4.96  -22 55.3   2.740   2.400    59   16.9  18:38 ( 41, 20)  

* 246P/2010 V2 ( NEAT )

It brightened up to 12-13 mag from 2012 to 2013. Now it is fading. But it is bright as 15.6 mag still now (Sept. 16, Taras Prystavski). It keeps 16-17 mag until autumn, and will be observable in good condition.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 18   0 26.77  -18 41.4   3.206   4.084   147   16.9  22:39 (  0, 36)  
Oct. 25   0 22.92  -18 38.8   3.274   4.101   141   17.0  22:08 (  0, 36)  

* 70P/Kojima

Now it is 17.3 mag (Sept. 23, Ken-ichi Kadota). It will brighten up to 16 mag and will be observable in excellent condition in winter.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 18   9 50.38   13 10.1   2.329   2.007    59   17.0   4:43 (283, 40)  
Oct. 25  10  5.15   12 10.4   2.266   2.007    62   16.9   4:49 (287, 43)  

* C/2009 F4 ( McNaught )

Now it is between 15.8 mag (Sept. 3, Taras Prystavski) and 18.5 mag (Sept. 2, M. Jaeger, E. Prosperi, S. Prosperi, W. Vollmann). It brightened up to 13 mag from 2011 to 2012. It will be fading after this, but it keeps brighter than 18 mag until 2015 spring.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 18   3 44.40   -4 53.5   8.146   8.968   143   17.0   2:00 (  0, 50)  
Oct. 25   3 41.36   -4 53.9   8.136   9.003   148   17.0   1:30 (  0, 50)  

* 106P/Schuster

Now it is 16.7 mag (Sept. 24, Catalina Sky Survey). In the Northern Hemisphere, it keeps observable in good condition while the comet will be fading gradually. In the Southern Hemisphere, it keeps extremely low.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 18   9  9.25   32  3.5   1.790   1.804    74   17.1   4:43 (263, 57)  
Oct. 25   9 25.10   32 22.4   1.761   1.841    78   17.3   4:49 (265, 60)  

* 304P/2014 L4 ( Ory )

Now it is 17.0 mag (Sept. 20, Ken-ichi Kadota). It keeps observable at 17-18 mag from August to November 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)  
Oct. 18   7 30.62   22 24.5   1.069   1.505    93   17.2   4:43 (309, 71)  
Oct. 25   7 43.56   22 14.7   1.048   1.535    97   17.3   4:49 (322, 74)  

* C/2010 U3 ( Boattini )

It will brighten up to 14 mag around the perihelion passage in 2019. In 2014, it will be observable in excellent condition at 17 mag from summer to winter in the Northern Hemisphere. It locates extremely low in the Southern Hemisphere. However, it is faint as 18.8 mag now, much fainter than this ephemeris (Sept. 24, W. Hasubick).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 18   3 19.37   35 59.1  11.573  12.390   143   17.2   1:35 (180, 89)  
Oct. 25   3 17.11   36  6.7  11.493  12.362   149   17.2   1:06 (180, 89)  

* 191P/McNaught

Now it is 17.4 mag (Aug. 2, iTelescope Observatory, Siding Spring). It keeps observable at 17-18 mag from summer to winter 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)  
Oct. 18   7  2.26   18  4.2   2.016   2.391    99   17.3   4:43 (334, 71)  
Oct. 25   7  7.00   18  6.2   1.956   2.417   105   17.3   4:49 (355, 73)  

* C/2013 X1 ( PanSTARRS )

Now it is 17.6 mag (Oct. 4, L. Arnold). It will pass close to the earth from spring to summer in 2016, and it is expected to be observable at 6-7 mag in good condition. In the Northern Hemispehre, it keeps observable in good condition until 2015 spring when the comet will brighten up to 15.5 mag. In the Southern Hemisphere, it keeps low for a long time until 2016 spring.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 18   6 59.12   33 39.9   6.066   6.343   101   17.4   4:43 (280, 83)  
Oct. 25   6 56.74   34  0.6   5.888   6.282   108   17.3   4:45 (  0, 89)  

* (3200) Phaethon

Now it is 19.1 mag (Sept. 2, Jean-Francois Soulier). It will pass the perihelion on Mar. 15. In the Northern Hemispehre, it keeps observable in good condition until late February. In the Southern Hemisphere, it keeps observable until mid February, but it locates low.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 18   5 34.99   37 53.3   1.431   2.097   118   17.8   3:51 (180, 87)  
Oct. 25   5 29.06   38 28.4   1.307   2.056   126   17.5   3:18 (180, 87)  

* 119P/Parker-Hartley

Now it is 18.1 mag (Oct. 1, Catalina Sky Survey). It was observed at 17 mag from 2013 to early 2014. It will be observable at 17.5 mag in good condition again from autumn to winter in 2014.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 18   8 21.24   15 55.7   3.211   3.201    80   17.6   4:43 (300, 58)  
Oct. 25   8 26.84   15 23.9   3.125   3.213    86   17.6   4:49 (310, 63)  

* P/2014 M4 ( PanSTARRS )

Now it is 18.6 mag (Sept. 22, Toshiyuki Takahashi). It will be observable at 17.5 mag in excellent condition from autumn to winter.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 18   1 37.08   15 17.5   1.436   2.429   173   17.6  23:49 (  0, 70)  
Oct. 25   1 33.44   14 49.7   1.424   2.415   173   17.6  23:18 (  0, 70)  

* C/2013 U2 ( Holvorcem )

It was observed around 17-18 mag in early 2014. It will be observable around 17-18 mag again from 2014 autumn to 2015 spring, in excellent condition in the Northern Hemisphere. It is not observable in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 18  10 13.65   53 51.8   5.273   5.118    75   17.7   4:43 (226, 47)  
Oct. 25  10 21.64   53 47.0   5.197   5.117    79   17.7   4:49 (226, 51)  

* P/2013 G1 ( Kowalski )

Now it is 17.5 mag (Sept. 15, W. Hasubick). Brightening furthermore after the perihelion passage. It will be observable at 17-18 mag in good condition until November.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 18  20 58.75  -10 57.5   3.474   3.921   109   17.7  19:12 (  0, 44)  
Oct. 25  21  1.50  -10 57.9   3.595   3.943   103   17.8  18:47 (  0, 44)  

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

Now it is 17.6 mag (Sept. 14, Mitsunori Tsumura). 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)  
Oct. 18  20 52.30  -14 58.1   5.517   5.886   106   17.7  19:05 (  0, 40)  
Oct. 25  20 53.67  -14 57.9   5.620   5.881   100   17.7  18:39 (  0, 40)  

* 11P/Tempel-Swift-LINEAR

It keeps 17.5 mag and will be observable in excellent condition from autumn to winter in the Northern Hemisphere. It locates somewhat low in the Southern Hemisphere. However, it is actually 19.7 mag, much fainter than predicted (Sept. 3, Jean-Francois Soulier).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 18   7 38.47   16 43.7   1.285   1.636    90   17.7   4:43 (315, 66)  
Oct. 25   7 49.87   14 50.9   1.251   1.660    94   17.7   4:49 (329, 67)  

* 303P/2014 L1 ( NEAT )

Now it is 17.9 mag (Aug. 5, Ken-ichi Kadota). It keeps observable at 17-18 mag in good condition from July to October.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 18  21 55.76  -12 53.9   1.809   2.488   122   17.7  20:09 (  0, 42)  
Oct. 25  21 58.87  -12 14.4   1.884   2.489   116   17.8  19:44 (  0, 43)  

* 116P/Wild 4

It has not been observed in this return yet. It will brighten up to 13 mag in 2016. In the Northern Hemisphere, it will be observable at 16 mag in excellent condition in this winter. It locates somewhat low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 18   6 39.62   26 43.8   3.076   3.477   105   18.0   4:43 (343, 81)  
Oct. 25   6 41.69   26 51.2   2.956   3.453   111   17.9   4:30 (  0, 82)  

* 2013 NS11

Peculiar asteroid with a cometary orbit of 45-years period. Now it is 18.3 mag (Oct. 4, M. Jaeger, et al.). It will brighten up to 17 mag from November to December, and will be observable in excellent condition.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 18   6 21.70   28 47.2   2.208   2.708   109   18.1   4:38 (  0, 84)  
Oct. 25   6  7.57   27  9.5   2.082   2.714   119   17.9   3:56 (  0, 82)  

* 289P/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 in 2013 July (July 6, Hidetaka Sato). However, no observations have been reported since mid July. 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. Ken-ichi Kadota reported it was not detected, fainter than 16.3 mag, on May 21.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct. 18  11 20.41    8  9.7   1.836   1.198    36   23.5   4:43 (273, 19)  
Oct. 25  11 40.84    6 13.5   1.873   1.255    38   23.6   4:49 (277, 20)  

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

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