Weekly Information about Bright Comets (2013 May 4: South)

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Updated on May 4, 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 6.7 mag (May 2, Katsumi Yoshimoto). In the Northern Hemisphere, it will be getting higher gradually, then 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)  
May   4   0 17.32   11  0.5   1.707   1.071    36    6.7   5:12 (246, 14)  
May  11   0 19.00   16 43.6   1.719   1.165    41    7.0   5:17 (236, 15)  

* 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 7.6 mag (May 2, Katsumi Yoshimoto). In the Northern Hemisphere, it will be observable all night after May. 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)  
May   4   0  6.60   69 45.7   1.555   1.350    59    6.9   5:12 (200,-24)  
May  11  23 48.40   75 27.6   1.621   1.477    63    7.3   5:17 (192,-25)  

* C/2012 L2 ( LINEAR )

Now it is so bright as 9.8 mag (May 1, Chris Wyatt). It will be unobservable soon in the Northern Hemisphere. In the Southern Hemisphere, it keeps observable for a long time until the comet fades out, although it keeps locating low.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
May   4   5  3.06    8 58.7   2.229   1.511    34   12.0  18:40 (111, 14)  
May  11   5 17.34    6 19.5   2.255   1.509    32   12.1  18:35 (108, 14)  

* C/2006 S3 ( LONEOS )

It brightened up to 11-12 mag in 2012. Now it is 11.8 mag (May 1, Marco Goiato). It will be observable at 12-13 mag in good condition again in 2013.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
May   4  14 10.17  -13 43.9   4.883   5.882   171   12.8  23:19 (180, 69)  
May  11  14  1.83  -13 11.5   4.936   5.907   162   12.8  22:43 (180, 68)  

* C/2011 R1 ( McNaught )

Now it is bright as 13.0 mag (Apr. 29, Chris Wyatt). It keeps observable at 11-13 mag for a long time from 2012 summer to 2013 summer.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
May   4  14 17.36   11  2.7   2.136   3.064   152   13.0  23:26 (180, 44)  
May  11  14  4.71   13 30.9   2.241   3.120   144   13.2  22:46 (180, 41)  

* 246P/2010 V2 ( NEAT )

It brightened up to 12 mag in 2012. It is bright as 12.2 mag still now (Mar. 23, Marco Goiato). It keeps 12-14 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)  
May   4  19 52.55  -26 47.0   2.446   2.925   108   13.1   5:05 (180, 82)  
May  11  19 56.16  -27 21.1   2.367   2.932   114   13.0   4:41 (180, 82)  

* C/2013 E2 ( Iwamoto )

Now it is bright as 11.1 mag (Apr. 22, Chris Wyatt). 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)  
May   4  23 14.29    7 32.3   2.036   1.622    51   13.1   5:12 (237, 27)  
May  11  23 30.78    8 32.2   2.045   1.671    54   13.3   5:17 (233, 29)  

* C/2010 S1 ( LINEAR )

Now it is 13.1 mag (Apr. 20, Juan Jose Gonzalez). 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 became observable also in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
May   4  21 17.86   31 55.2   6.087   5.901    74   13.5   5:12 (198, 21)  
May  11  21 15.88   32 15.9   5.997   5.900    79   13.5   5:17 (190, 22)  

* 29P/Schwassmann-Wachmann 1

Now it is faint, but visible visually at 14.3 mag (Apr. 16, Alan Hale).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
May   4  13 47.77  -22 56.8   5.239   6.219   164   13.5  22:57 (180, 78)  
May  11  13 44.80  -22 38.2   5.263   6.217   159   13.6  22:27 (180, 78)  

* 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)  
May   4   1 48.12    4 11.4   2.287   1.365    18   14.2   5:12 (265,  0)  
May  11   2 10.73    6 38.2   2.229   1.312    18   13.7   5:17 (261,  1)  

* C/2011 J2 ( LINEAR )

It keeps 13 mag and observable in good condition in the Northern Hemisphere for a long time from 2013 to 2014. Now it is 14.5 mag (Mar. 4, Sandor Szabo). It locates extremely low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
May   4   9  5.75   50 15.6   4.089   4.059    81   14.1  18:40 (176,  5)  
May  11   9  2.32   50 17.6   4.169   4.026    74   14.1  18:35 (172,  4)  

* C/2012 V2 ( LINEAR )

Now it is 14.4 mag (Apr. 13, Sandor Szabo). It will brighten up to 12 mag from summer to autumn. In the Northern Hemisphere, it will be unobservable soon. In the Southern Hemisphere, it keeps unobservable until August. Then it keeps observable while fading gradually.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
May   4   3 38.18   37 27.3   2.918   2.046    24   14.4  18:40 (123,-19)  
May  11   3 55.38   36  4.7   2.895   1.983    20   14.3  18:35 (121,-19)  

* C/2012 S1 ( ISON )

Now it is 15.5 mag (Apr. 13, Ken-ichi Kadota). 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. It became unobservable in late May. 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)  
May   4   6 42.84   29 20.6   4.330   3.860    56   14.5  18:40 (143, 15)  
May  11   6 46.08   29  4.5   4.340   3.773    50   14.5  18:35 (140, 12)  

* 117P/Helin-Roman-Alu 1

Now it is 14.4 mag (Apr. 30, Taras Prystavski). 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)  
May   4  14 26.92  -10 10.9   2.425   3.428   172   14.6  23:36 (180, 65)  
May  11  14 22.02  -10  2.2   2.426   3.414   165   14.5  23:04 (180, 65)  

* 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. It was expected to be 9-10 mag, but actually, it is much fainter as 13.8 mag (Apr. 16, Artyom Novichonok). In the Southern Hemisphere, it keeps observable in good condition while fading slowly after this. In the Northern Hemisphere, it is hardly observable after 2013.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
May   4   0 56.96  -42 50.0   2.587   2.323    63   14.6   5:12 (302, 34)  
May  11   1 17.34  -42 39.7   2.602   2.376    65   14.7   5:17 (301, 36)  

* 63P/Wild 1

It brightened up to 11.0 mag in 2013 spring (Mar. 30, Juan Jose Gonzalez). Now it is fading, but still bright as 12.2 mag (May 1, Marco Goiato).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
May   4  10  0.71   12 17.5   1.453   1.964   104   14.6  19:12 (180, 43)  
May  11  10  8.54   10  4.8   1.525   1.973   100   14.8  18:52 (180, 45)  

* (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. Appearing in the morning sky again in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
May   4  23 46.50  -15  0.9   3.307   2.829    53   14.6   5:12 (263, 36)  
May  11  23 55.98  -14 21.1   3.245   2.841    57   14.6   5:17 (259, 40)  

* C/2012 K6 ( McNaught )

Now it is 15.2 mag (Mar. 30, J. F. Hernandez). It reaches up to 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)  
May   4  14 18.79  -39 59.0   2.415   3.357   155   14.8  23:27 (  0, 85)  
May  11  14  0.43  -36 55.8   2.410   3.354   155   14.8  22:41 (  0, 88)  

* 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)  
May   4   3 30.85  -27 26.0   7.183   6.507    44   14.9  18:40 ( 67, 15)  
May  11   3 34.83  -26 42.5   7.210   6.533    44   15.0  18:35 ( 66, 12)  

* 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 15.2 mag still now (Mar. 4, Sandor Szabo).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
May   4   8  8.65   -7 20.9   5.781   5.755    83   15.0  18:40 (141, 57)  
May  11   8  9.44   -7 12.8   5.947   5.816    77   15.1  18:35 (134, 54)  

* C/2012 K1 ( PanSTARRS )

Now it is 15.5 mag (Apr. 20, Taras Prystavski). 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)  
May   4  17 12.32   18 39.5   5.182   5.879   129   15.3   2:26 (180, 36)  
May  11  17  6.54   19 24.1   5.076   5.815   133   15.2   1:52 (180, 36)  

* P/2012 B1 ( PanSTARRS )

Now it is bright as 14.7 mag (Apr. 13, Sandor Szabo). It will be observable at 15-16 mag for a long time from 2013 to 2014.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
May   4  11 48.22    6 27.3   3.114   3.852   131   16.0  20:58 (180, 49)  
May  11  11 47.48    6 14.7   3.188   3.847   124   16.1  20:30 (180, 49)  

* C/2013 F3 ( McNaught )

Now it is 17.2 mag (Apr. 11, Hidetaka Sato). It keeps 16 mag and observable in good condition until July.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
May   4  19 25.37   -8 26.6   1.696   2.265   111   16.2   4:38 (180, 64)  
May  11  19 18.39   -3 45.5   1.600   2.258   118   16.1   4:04 (180, 59)  

* 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. It will be observabel at 16 mag again in 2013 summer. 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)  
May   4  22 10.67  -17 51.6   3.601   3.485    75   16.4   5:12 (248, 56)  
May  11  22 16.75  -17 38.8   3.520   3.500    80   16.3   5:17 (240, 61)  

* C/2012 S3 ( PanSTARRS )

Now it is 17.9 mag (Apr. 4, Toshiyuki Takahashi). 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)  
May   4  22  5.82   22 48.0   2.921   2.665    65   16.6   5:12 (212, 25)  
May  11  22  6.88   22 27.4   2.779   2.628    70   16.4   5:17 (205, 28)  

* C/2011 O1 ( LINEAR )

Now it is 16.1 mag (Mar. 4, Hidetaka Sato). In the Southern Hemisphere, it will be observable at 15-16 mag in good condition for a long time until summer. It is not observable at all in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
May   4   3 47.38  -47 35.9   4.812   4.481    65   16.4  18:40 ( 50, 28)  
May  11   3 57.85  -46 28.0   4.841   4.510    65   16.5  18:35 ( 50, 25)  

* P/2012 F2 ( PanSTARRS )

Now it is 17.5 mag (Mar. 16, Hidetaka Sato). 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)  
May   4  18 51.78  -11  0.1   2.266   2.903   119   16.6   4:05 (180, 66)  
May  11  18 53.24  -10  7.0   2.198   2.906   125   16.5   3:39 (180, 65)  

* 197P/LINEAR

Now it is unusually bright in outburst. It was faint as 18.5 mag on Apr. 10, but brightened up to 16.1 mag on Apr. 16 (Hidetaka Sato).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
May   4  23 35.44  -22  7.2   1.307   1.184    59   16.7   5:12 (270, 42)  
May  11  23 59.83  -21 27.0   1.334   1.225    61   17.1   5:17 (268, 43)  

* 125P/Spacewatch

Now it is 16.6 mag (Apr. 2, Hidetaka Sato). It will be fading after this, and will be fainter than 18 mag in June.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
May   4  21 29.08   -6 17.9   1.531   1.697    81   16.8   5:12 (221, 55)  
May  11  21 41.42   -5 26.7   1.500   1.727    84   17.0   5:17 (212, 56)  

* C/2012 X1 ( LINEAR )

It is expected to brighten up to 11 mag and become observable in excellent condition in 2014 spring. Now it is 16.8 mag (Apr. 17, A. Klotz, F. Kugel, J. Caron). In the Northern Hemisphere, it keeps observable in good condition until early summer. It locates low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
May   4   8 37.31   40 28.1   3.941   3.868    78   16.9  18:40 (170, 14)  
May  11   8 40.98   40 13.0   3.974   3.802    72   16.8  18:35 (166, 13)  

* 257P/2012 F4 ( Catalina )

Now it is 18.3 mag (Apr. 11, Hidetaka Sato). It is expected to be observable at 16 mag in good condition in summer and autumn. But it is fainter than predicted recently.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
May   4  22 23.70    8 40.1   2.387   2.143    63   17.0   5:12 (225, 35)  
May  11  22 36.30   10 10.5   2.322   2.137    66   17.0   5:17 (219, 36)  

* P/2005 L1 ( McNaught )

First return of a new periodic comet discovered in 2005. It will be observable at 17 mag for a long time from 2013 to 2014. However, it has not been recovered yet. Not it is fainter than 19.5 mag (Feb. 21, Martin Masek).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
May   4  17 21.46  -13 22.3   2.428   3.282   141   17.2   2:35 (180, 68)  
May  11  17 18.87  -13 10.9   2.367   3.274   148   17.2   2:05 (180, 68)  

* 273P/2012 V4 ( Pons-Gambart )

Long-lost comet for almost 200 years since 1827. Finally re-discovered by Rob Matson from SWAN images of mid November. Now it is fading, but still bright as 14.1 mag (Apr. 30, Taras Prystavski). In the Northern Hemisphere, it keeps observable in excellent condition while fading after this. In the Southern Hemisphere, it keeps locating extremely low after this.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
May   4  11 48.10   48 31.1   1.854   2.323   104   17.2  20:57 (180,  7)  
May  11  11 30.75   45 50.3   2.034   2.411    99   17.7  20:12 (180,  9)  

* C/2013 G2 ( McNaught )

New comet. Now it is 16.7 mag (Apr. 8, Siding Spring Survey). 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)  
May   4  20  4.25  -33 37.9   2.280   2.748   106   17.2   5:12 (218, 88)  
May  11  19 53.91  -32 20.5   2.210   2.797   115   17.2   4:39 (180, 87)  

* 91P/Russell 3

It was observed around 20 mag in 2012 spring. But it has not been observed recently. It will be observable at 17.5 mag from spring to summer.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
May   4  18 29.90  -19 22.5   1.920   2.645   126   17.4   3:43 (180, 74)  
May  11  18 30.00  -18 36.7   1.858   2.652   132   17.3   3:15 (180, 74)  

* 175P/Hergenrother

Now it is bright as 15.8 mag (Apr. 10, Catalina Sky Survey). It keeps observable in good condition at 16-17 mag until June. It locates somewhat low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
May   4   9 36.90   20  7.9   1.564   1.953    96   17.4  18:48 (180, 35)  
May  11   9 47.73   19 16.3   1.626   1.949    92   17.5  18:35 (179, 36)  

* C/2012 C1 ( McNaught )

Now it is 17.0 mag (Mar. 4, Hidetaka Sato). 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)  
May   4   2  5.60  -61  4.3   5.008   4.887    77   17.4   5:12 (326, 29)  
May  11   2  8.78  -61 18.8   4.966   4.895    80   17.4   5:17 (325, 33)  

* C/2013 G6 ( Lemmon )

New comet. Now it is 18.1 mag (Apr. 20, P. C. Sherrod). It brightens up to 17.5 mag in May and June.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
May   4  14 55.97  -15 38.2   1.263   2.271   177   17.6   0:11 (180, 71)  
May  11  14 17.79  -16 59.3   1.241   2.237   167   17.5  22:57 (180, 72)  

* C/2010 R1 ( LINEAR )

Now it is 17.4 mag (Apr. 17, M. Brusa, L. Sempio). It brightened up to 16.5 mag in 2012. It will be observable in good condition again at 17.5 mag in 2013 spring.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
May   4  12 46.98    9 37.5   5.343   6.163   141   17.5  21:56 (180, 45)  
May  11  12 40.33    9 51.2   5.444   6.183   133   17.6  21:22 (180, 45)  

* 184P/Lovas 2

It has not been observed yet in this apparition. But it must have been already brightened up to 18 mag. It is expected to be bright as 16 mag and observable in good condition from summer to autumn.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
May   4  22 20.03   -9 47.8   1.729   1.681    70   17.9   5:12 (240, 49)  
May  11  22 39.30   -7 48.1   1.646   1.641    71   17.7   5:17 (235, 50)  

* 2009 DL26

Peculiar asteroid discovered in 2009. It was observed only during 9 days, then it became lost. In calculation, it passes the perihelion in 2014 July and brightens up to 17 mag.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
May   4  16 30.50  -22 13.9   3.938   4.865   154   17.9   1:44 (180, 77)  
May  11  16 27.60  -22  9.5   3.875   4.844   161   17.8   1:14 (180, 77)  

* C/2013 G7 ( McNaught )

New comet. Now it is 17.3 mag (Apr. 16, Siding Spring 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)  
May   4  15 13.65  -15 29.6   4.308   5.310   172   17.9   0:28 (180, 71)  
May  11  15  5.32  -15 51.5   4.276   5.285   177   17.9  23:47 (180, 71)  

* C/2013 H1 ( La Sagra )

New comet. Now it is 17.8 mag (Apr. 21, Catalina Sky Survey). It brightens up to 18 mag at best in May and June.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
May   4  15  0.34   15 40.1   1.729   2.639   148   17.9   0:14 (180, 39)  
May  11  14 56.10   14 39.2   1.725   2.632   147   17.9  23:38 (180, 40)  

* P/2013 G1 ( Kowalski )

New comet. Now it is 18.2 mag (Apr. 16, Hidetaka Sato). 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)  
May   4  15 30.39  -17 38.8   2.658   3.652   168   17.9   0:44 (180, 73)  
May  11  15 26.73  -17 15.7   2.628   3.636   176   17.9   0:13 (180, 72)  

* 98P/Takamizawa

It was predicted to be already 15-16 mag. But actually, it is 19.3 mag, much fainter than predicted by 4 mag (Apr. 23, Mt. Lemmon Surveyr). It was expected to brighten up to 14 mag and to be observable in excellent condition in summer. However, it can be fainter than 18 mag.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
May   4  15 15.28    3 27.7   0.929   1.905   159   19.4   0:29 (180, 52)  
May  11  15 11.07    3 41.7   0.898   1.875   158   19.2  23:53 (180, 51)  

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