Weekly Information about Bright Comets (2016 June 18: North)

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 Updated on June 25, 2016
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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/2013 X1 ( PanSTARRS )

Now it is bright as 6.4 mag (June 14, Marco Goiato). It keeps 6-7 mag until mid July. In the Southern Hemisphere, it keeps observable in excellent condition after this. In the Northern Hemisphere, it locates low in the south. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 18  20 42.18  -40 42.2   0.653   1.571   139    6.0   2:58 (  0, 15)  
June 25  18 49.62  -48 25.9   0.652   1.628   154    6.2   0:44 (  0,  7)

* C/2014 S2 ( PanSTARRS )

Now it is 11.6 mag (June 8, Chris Wyatt). It will be fading slowly after this. In the Northern Hemisphere, it will be getting lower gradually and will be unobservable in August. It is observable in the evening sky also in the Southern Hemisphere until August. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 18  11  9.49   28 29.2   3.189   3.021    71   11.4  21:03 ( 98, 43)  
June 25  11 13.70   26  4.9   3.332   3.075    66   11.6  21:04 ( 98, 37)

* 9P/Tempel 1

Now it is 11.6 mag (June 9, Marco Goiato). It keeps 11-12 mag until September. In the Northern Hemisphere, it will be getting lower gradually after this. In the Southern Hemisphere, it keeps observable in good condition for a long time. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 18  12 14.71    5 54.5   1.175   1.606    94   11.5  21:03 ( 60, 44)  
June 25  12 25.60    3 29.2   1.206   1.589    90   11.4  21:04 ( 62, 39)

* 81P/Wild 2

Now it is 11.3 mag (June 10, Hiroshi Abe). It keeps 11 mag until summer. In the Northern Hemisphere, it will be unobservable soon. It locates somewhat low in the Southern Hemisphere, but it keeps observable until August. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 18   8 59.24   18  3.2   2.173   1.624    45   11.6  21:03 (104, 12)  
June 25   9 18.74   16 46.7   2.194   1.612    43   11.6  21:04 (104,  9)

* 43P/Wolf-Harrington

It will brighten up to 11 mag from summer to autumn. However, it was faint as 18.2 mag in February (Feb. 17, Alexander Baransky), fainter than this ephemeris by 2 mag. Now it is appearing in the morning sky, but it keeps low for some time. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 18   3 31.97   25  5.3   2.311   1.528    30   12.4   2:58 (243,  5)  
June 25   3 56.34   25 38.4   2.260   1.495    31   12.2   3:00 (243,  7)

* C/2014 W2 ( PanSTARRS )

Now it is 12.6 mag (June 3, Giuseppe Pappa). It keeps 12-13 mag for a long time from 2015 autumn to 2016 summer. In the Northern Hemispehre, it keeps observable in good condition for a long time. It keeps unobservable until July in the Southern Hemisphere. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 18  15 42.68   61 59.3   2.661   2.866    91   12.5  21:53 (180, 63)  
June 25  15 29.70   58 35.5   2.689   2.893    91   12.6  21:13 (180, 67)

* C/2015 WZ ( PanSTARRS )

Now it is bright as 12.5 mag (June 6, Michael Jager). It is observable in excellent conditione in the Northern Hemisphere. It locates very low in the Southern Hemisphere. It will fade out rapidly after July. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 18  19  8.40   53 21.0   1.116   1.649   101   12.7   1:26 (180, 72)  
June 25  17 52.00   50 23.6   1.116   1.704   106   13.0  23:29 (180, 75)

* 252P/LINEAR

It passed only 0.036 a.u. from the earth on Mar. 21-22, and brightened up to 3.9 mag (Mar. 21, Thomas Lehmann). It kept brightening even after the perihelion passage. However, it is fading rapidly now. It has already faded down to 12.6 mag (June 5, Alan Hale). It keeps observable in excellent condition for a while after this both in the Northern Hemisphere and Southern Hemisphere. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 18  16 36.42    3 22.0   0.632   1.588   148   12.7  22:48 (  0, 58)  
June 25  16 35.21    1 48.7   0.713   1.651   144   13.5  22:19 (  0, 57)

* 29P/Schwassmann-Wachmann 1

Now it is 14.8 mag (June 10, Jean-Francois Soulier). It is observable in excellent condition in the Southern Hemisphere. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 18  19 47.82  -25 31.1   5.009   5.928   152   13.3   2:03 (  0, 30)  
June 25  19 44.82  -25 35.5   4.963   5.926   159   13.3   1:32 (  0, 29)

* C/2013 US10 ( Catalina )

Now it is 13.4 mag (May 22, Ken-ichi Kadota). It brightened up to 6 mag from autumn to winter. Now it is fading. It is not observable after this in the Southern Hemisphere. It will be extremely low from May to June also in the Northern Hemisphere. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 18   5 30.98   46 49.7   4.229   3.323    23   13.3   2:58 (211,  3)  
June 25   5 36.45   46 59.9   4.299   3.404    24   13.5   3:00 (214,  5)

* 53P/Van Biesbroeck

Now it is 14.4 mag (June 8, Chris Wyatt). It will be observable at 14 mag in good condition from spring to summer. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 18  21 14.86  -10 55.6   1.690   2.460   129   14.0   2:58 (349, 44)  
June 25  21 16.02  -11  0.9   1.641   2.470   135   14.0   3:00 (359, 44)

* P/2016 J3 ( STEREO )

New comet discovered from the STEREO spacecraft images in May. It brightened up to 8 mag due to the forward scattering. In the Southern Hemisphere, it is appearing in the evening sky, and it will be getting higher rapidly. It it not observable in the Northern Hemisphere. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 18   8 19.25    3 11.7   1.113   0.769    42   14.1  21:03 ( 96, -4)  
June 25   9  7.40   -0 56.4   1.126   0.881    48   14.7  21:04 ( 90, -3)

* 116P/Wild 4

Now it is 13.2 mag (June 3, Giuseppe Pappa). It keeps 13 mag for a while. It is observable in excellent condition in the Southern Hemisphere. But it locates somewhat low in the Northern Hemisphere. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 18  15 19.06  -22 34.2   1.536   2.445   146   14.1  21:31 (  0, 32)  
June 25  15 17.96  -22 29.2   1.606   2.466   139   14.3  21:04 (  1, 32)

* 118P/Shoemaker-Levy 4

It is not observable now. It will be observable at 16.5 mag in September in the Northern Hemisphere, or in November in the Southern Hemisphere. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 18   6  8.93   18 41.1   2.985   1.980     6   14.2  21:03 (130,-19)  
June 25   6 26.76   18 43.5   2.991   1.981     5   14.2  21:04 (132,-20)

* C/2011 KP36 ( Spacewatch )

Now it is 14.0 mag (June 10, Hiroshi Abe). Distant object, but it keeps observable at 14-15 mag for a long time from 2015 to 2016. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 18   0 32.33    2 19.4   4.984   4.886    78   14.4   2:58 (288, 28)  
June 25   0 36.52    2 26.3   4.883   4.888    84   14.3   3:00 (293, 33)

* C/2015 TQ209 ( LINEAR )

It will brighten up to 13 mag in summer. But it keeps unobservable for a long time. It will appear in the morning sky in December, when the comet will be fainter than 15 mag. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 18   6  6.26   17 52.8   2.736   1.732     7   14.6  21:03 (130,-20)  
June 25   6 26.97   17 30.4   2.684   1.678     6   14.4  21:04 (132,-21)

* 146P/Shoemaker-LINEAR

Now it is 16.0 mag (May 14, Hidetaka Sato), brighter than originally predicted. It will brighten up to 14 mag in summer. In the Southern Hemisphere, it keeps observable until winter, but it locates somewhat low. In the Northern Hemisphere, it is not observable now. It will appear in the morning sky in July, then it will be observable in excellent condition. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 18   2 40.15    1  1.0   1.852   1.437    50   14.6   2:58 (270,  1)  
June 25   3  0.07    3 34.0   1.828   1.431    51   14.5   3:00 (269,  5)

* 237P/LINEAR

It brightened rapidly up to 13.8 mag (June 8, Hidetaka Sato). It will be observable at 12-13 mag until autumn. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 18  13  2.71  -14  2.3   1.581   2.185   112   14.8  21:03 ( 32, 35)  
June 25  13  8.65  -13 31.6   1.631   2.163   107   14.5  21:04 ( 39, 32)

* 77P/Longmore

Now it is bright as 13.7 mag (June 3, Giuseppe Pappa). In the Northern Hemisphere, it will be getting lower gradually after this, and it will be unobservable in late July. In the Southern Hemisphere, it keeps observable in good condition until autumn. But it will be fading slowly after this. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 18  12 35.76  -19 37.6   1.821   2.350   108   14.6  21:03 ( 36, 26)  
June 25  12 40.09  -20 31.8   1.903   2.355   103   14.7  21:04 ( 41, 23)

* C/2015 T4 ( PanSTARRS )

Now it is bright as 14.9 mag (May 4, Hidetaka Sato). It keeps 15 mag until autumn. In the Southern Hemisphere, it keeps observable for a long time. It will be unobservable after this in the Northern Hemisphere. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 18   6  2.74  -41 58.3   2.524   2.296    65   14.9  21:03 ( 64,-52)  
June 25   6 22.56  -44  3.3   2.486   2.297    67   14.9  21:04 ( 61,-54)

* C/2015 V2 ( Johnson )

Now it is 14.6 mag (June 10, Artyom Novichonok). It is expected to brighten up to 7 mag in 2017 summer. In the Northern Hemisphere, it becomes low temporarily in summer, but it keeps observable in good condition until the highlight while the comet will be brightening. In the Southern Hemisphere, it is not observable until early 2017. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 18   8  2.18   55 47.5   5.214   4.494    40   15.1  21:03 (143, 22)  
June 25   8 13.03   55 20.2   5.179   4.430    38   15.0  21:04 (144, 20)

* 144P/Kushida

It became so bright as 8 mag in 2009. In the Northern Hemispehre, it will appear in the morning sky in July, then it will be observable at 11-12 mag from summer to autumn. In the Southern Hemisphere, it keeps extremely low for a long time until autumn. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 18   4 13.80   21 48.5   2.555   1.653    21   15.7   2:58 (239, -4)  
June 25   4 35.89   22 27.4   2.502   1.616    23   15.0   3:00 (240, -3)

* C/2014 W11 ( PanSTARRS )

It brightened very rapidly in 2015 spring, and reached up to 13.8 mag (2015 May 11, Sandor Szabo). Now it is 15.7 mag (June 7, Yasukazu Ikari). It is observable in excellent condition in the Southern Hemisphere. But it locates somewhat low in the Northern Hemisphere. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 18  13 40.72  -25 48.1   3.675   4.332   124   15.9  21:03 ( 18, 27)  
June 25  13 41.79  -25 27.6   3.787   4.361   118   16.0  21:04 ( 24, 25)

* C/2015 ER61 ( PanSTARRS )

Now it is 16.6 mag (June 6, P. C. Sherrod, L. P. Sherrod). It is expected to brighten up to 7 mag in 2017 spring. But it locates somewhat low at the high light. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 18  11  9.61   -0  6.1   4.430   4.397    81   16.2  21:03 ( 68, 28)  
June 25  11 12.03   -0 11.3   4.467   4.326    75   16.1  21:04 ( 73, 22)

* 333P/LINEAR

First return of an object discovered as an asteroid 2007 VA85 in 2007. It brightened very rapidly since mid February, and brightened up to 11.3 mag in spring (Mar. 5, Juan Jose Gonzalez). Now it is fading. It has already faded down to 16.1 mag (June 9, Hidetaka Sato). It keeps unobservable until September in the Southern Hemisphere. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 18   2 37.74   50 44.1   2.030   1.503    45   16.3   2:58 (225, 27)  
June 25   2 28.25   52 44.4   1.973   1.562    51   16.8   3:00 (225, 34)

* 65P/Gunn

Now it is 16.4 mag (June 5, Yasukazu Ikari). It will be getting lower after this, and will be unobservable in August. It will brighten up to 14 mag in 2017. The perihelion distance increases from 2.4 a.u. to 2.9 a.u. in this apparition, and the comet will not brighten as before. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 18  11 30.67   11 35.0   3.661   3.656    81   16.4  21:03 ( 75, 39)  
June 25  11 34.74   10 50.1   3.743   3.641    76   16.4  21:04 ( 79, 34)

* C/2015 O1 ( PanSTARRS )

Now it is 16.8 mag (June 3, Yasukazu Ikari). It will be observable at 13 mag for a long time from 2017 to 2018. In 2016, it keeps observable at 16-17 mag in good condition until autumn. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 18  19 56.30  -11 34.7   5.463   6.340   147   16.5   2:11 (  0, 43)  
June 25  19 50.26  -11 18.7   5.364   6.297   154   16.4   1:38 (  0, 44)

* C/2016 B1 ( NEOWISE )

Now it is bright as 17.3 mag (June 2, Yasukazu Ikari). It keeps 16 mag for a long time from 2016 to 2017. In 2016, it is observable in excellent condition in the Southern Hemisphere, but it locates extremely low in the Northern Hemispehre. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 18  12 12.01  -29 19.0   3.165   3.587   106   16.6  21:03 ( 35, 16)  
June 25  12 17.34  -27 52.2   3.222   3.558   100   16.6  21:04 ( 41, 14)

* C/2015 B2 ( PanSTARRS )

Now it is 17.0 mag (Feb. 7, iTelescope Observatory, Siding Spring). It keeps 16.5 mag for a long time in 2016, and it will be observable in excellent condition in the Southern Hemisphere. It is hardly observable in the Northern Hemisphere. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 18   3 44.29  -37  2.7   3.659   3.393    66   16.6   2:58 (296,-31)  
June 25   3 44.86  -37 25.4   3.604   3.401    70   16.6   3:00 (299,-26)

* C/2014 OE4 ( PanSTARRS )

Now it is 16.5 mag (June 16, J. Camarasa). It keeps 16.5 mag from 2016 to 2017. It is observable in good condition in the Northern Hemisphere. In the Southern Hemisphere, it locates low in 2016, and it is not observable in 2017. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 18  16 55.73   34 38.6   5.781   6.360   120   16.7  23:06 (  0, 90)  
June 25  16 51.39   35  4.7   5.807   6.351   118   16.7  22:35 (180, 90)

* C/2014 Q2 ( Lovejoy )

It brightened up to 3.7 mag and became a naked eye comet in mid January in 2015 (Jan. 13, Marek Biely). Now it is fading. It has already faded down to 15.6 mag (June 13, Catalina Sky Survey). In the Northern Hemisphere, it keeps observable for a long time until the comet fades out. It locates somewhat low in the Southern Hemisphere. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 18  17 47.79   26 22.1   5.236   5.943   130   16.7   0:03 (  0, 81)  
June 25  17 42.42   25 54.1   5.300   6.004   130   16.8  23:26 (  0, 81)

* 22P/Kopff

It brightened up to 10 mag in 2015 autumn. Now it is appearing in the morning sky, but it must be already fainter than 16 mag. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 18   2 33.50   11  0.6   3.223   2.646    47   16.7   2:58 (262,  8)  
June 25   2 42.79   11 37.8   3.194   2.688    51   16.8   3:00 (265, 13)

* P/2008 J3 ( McNaught )

First return of a new periodic comet which brightened up to 16.5 mag in 2008. The condition of this apparition is very good. It is expected to brighten up to 15.5 mag in autumn and will be observable in good condition. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 18   0  5.65  -21  0.6   2.278   2.560    94   17.0   2:58 (311, 16)  
June 25   0 12.14  -20 20.8   2.178   2.540    98   16.8   3:00 (315, 20)

* C/2014 R3 ( PanSTARRS )

Now it is 17.0 mag (June 16, Catalina Sky Survey). It brightened rapidly, and became brighter than originally expected. It keeps 17 mag until 2017. It is observable 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)  
June 18  13 27.80   71 25.3   7.472   7.283    75   16.9  21:03 (169, 52)  
June 25  13 19.25   70 19.5   7.510   7.281    73   16.9  21:04 (164, 51)

* C/2014 A4 ( SONEAR )

It brightened up to 15 mag from late 2014 to early 2016. Now it is fading slowly. Now it is 16.6 mag (June 16, Catalina Sky Survey). In the Northern Hemisphere, it will be observable at 17 mag in autumn in good condition. It locates extremely low in the Southern Hemisphere. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 18   0 18.79   36  1.3   5.056   4.809    70   16.9   2:58 (252, 47)  
June 25   0 15.51   37 14.2   4.979   4.838    76   16.9   3:00 (253, 53)

* 219P/LINEAR

Now it is 17.1 mag (June 14, Mt. Lemmon Survey). It will brighten up to 16.5 mag in summer and will be observable in good condition. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 18  18  2.10  -12 16.4   1.832   2.835   168   17.0   0:18 (  0, 43)  
June 25  17 56.55  -11 51.2   1.812   2.813   167   16.9  23:40 (  0, 43)

* C/2015 LC2 ( PanSTARRS )

Now it is 16.7 mag (June 12, Mt. Lemmon Survey). It keeps brightening even after the perihelion passage. It keeps observable at 17 mag in good condition until autumn. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 18  14 38.54    7  3.1   5.933   6.567   124   17.0  21:03 (  7, 62)  
June 25  14 36.27    7 30.7   6.048   6.589   118   17.0  21:04 ( 23, 61)

* C/2016 A8 ( LINEAR )

It will brighten up to 15 mag in summer. It is observable in excellent condition in the Northern Hemispehre. In the Southern Hemisphere, it keeps locating low until August, but it will be observable in good condition after September. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 18   1 56.21   38 55.0   2.567   2.080    50   17.2   2:58 (241, 29)  
June 25   1 52.70   39 51.7   2.412   2.046    57   17.0   3:00 (243, 36)

* 188P/LINEAR-Mueller

It is expected to brighten up to 16 mag and observable in good condition in autumn. However, it is so faint as 19.7 mag now (Apr. 16, A. Maury, J.-B. de Vanssay, J.-G. Bosch, J.-F. Soulier). 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 18  23  9.81  -12 55.3   2.634   3.036   103   17.1   2:58 (317, 31)  
June 25  23 13.57  -12 31.3   2.524   3.013   109   17.0   3:00 (324, 35)

* C/2012 F3 ( PanSTARRS )

It brightened up to 13-14 mag from 2014 to 2015. Now it is fading. It has already faded down to 16.6 mag (June 5, Space Surveillance Telescope, Atom Site). It will be observable at 17 mag in 2016. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 18  23 24.11   -2 42.4   4.993   5.203    96   17.2   2:58 (306, 37)  
June 25  23 25.61   -2 40.4   4.930   5.247   102   17.3   3:00 (314, 41)

* 100P/Hartley 1

It brightened rapidly up to 15.1 mag in May (May 12, Yuji Ohshima). Now it is fading rapidly. It has already faded down to 17.3 mag (June 2, Yasukazu Ikari). 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 18  14 40.44  -40 11.5   1.232   2.097   137   17.3  21:03 (  2, 15)  
June 25  14 38.45  -40 43.1   1.296   2.112   131   17.6  21:04 (  8, 14)

* C/2014 N3 ( NEOWISE )

It was observed at 14-15 mag from 2014 to 2015. Now it is fading. In the Northern Hemisphere, it keeps observable in excellent condition until winter when the comet will be fainter than 18 mag. It is not observable in the Southern Hemisphere. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 18   3  9.24   62 23.9   6.142   5.501    47   17.3   2:58 (211, 28)  
June 25   3 18.69   63 34.0   6.145   5.541    49   17.4   3:00 (211, 30)

* C/2010 S1 ( LINEAR )

It was observed as bright as 13-14 mag for a long time from 2011 to 2014. Now it is fading. It is observable in excellent condition in the Southern Hemisphere. It locates extremely low in the Northern Hemisphere. No observations have been reported since August, 2015. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 18  17 31.64  -37  7.6   8.605   9.593   165   17.4  23:43 (  0, 18)  
June 25  17 26.83  -37 16.7   8.653   9.628   162   17.4  23:10 (  0, 18)

* C/2016 K1 ( LINEAR )

Now it is 17.5 mag (June 3, iTelescope SRO Observatory, Auberry). It keeps 17-18 mag until autumn. It keeps observable in excellent condition in the Northern Hemisphere. It will be getting lower gradually in the Southern Hemisphere. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 18  23 15.17    5 26.1   1.987   2.310    95   17.6   2:58 (301, 44)  
June 25  23  8.01    9  2.1   1.870   2.302   101   17.5   3:00 (308, 53)

* 47P/Ashbrook-Jackson

Now it is 18.3 mag (June 8, B. Lutkenhoner). It will brighten up to 16 mag and will be observable in good condition in 2017. In 2016, it is observable in excellent condition in the Southern Hemisphere, but it keeps low in the Northern Hemisphere. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 18  19 22.47  -39 53.8   2.477   3.419   153   17.6   1:38 (  0, 15)  
June 25  19 17.18  -40 11.1   2.433   3.400   158   17.5   1:05 (  0, 15)

* C/2015 H2 ( PanSTARRS )

Now it is 17.7 mag (June 12, B. Lutkenhoner). It keeps observable at 17.5 mag in good condition from spring to autumn 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)  
June 18  17 58.09  -64 30.5   4.203   5.013   138   17.6   0:14 (  0,-10)  
June 25  17 52.68  -64 24.9   4.196   5.006   138   17.6  23:37 (  0, -9)

* P/2008 T1 ( Boattini )

It has not been observed in this apparition yet. It will brighten up to 17.5 mag in summer. 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 18  20 44.26  -17 52.1   2.331   3.163   138   17.8   2:58 (  0, 37)  
June 25  20 42.44  -17 54.4   2.264   3.154   145   17.8   2:30 (  0, 37)

* P/2006 F1 ( Kowalski )

Although it was bright as 17 mag at the discovery in 2006, it faded out before the perihelion passage in 2008, and it became lost. Now it is fainter than 19 mag (May 30, Jean-Francois Soulier). 

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
June 18  15 30.96    5 59.5   3.678   4.462   135   17.8  21:42 (  0, 61)  
June 25  15 28.43    5 35.3   3.735   4.456   129   17.8  21:12 (  0, 60)

* C/2013 C2 ( Tenagra )

Very far object. Outburst occured on Feb. 20, 2015, and it brightened up to 15 mag. Now it is 17.8 mag (June 4, Space Surveillance Telescope, Atom Site). It is observable in excellent 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)  
June 18  13 10.67  -22 36.0   8.688   9.196   117   17.8  21:03 ( 26, 28)  
June 25  13 10.99  -22 21.5   8.791   9.199   110   17.9  21:04 ( 33, 25)

* C/2014 Y1 ( PanSTARRS )

Now it is 17.6 mag (May 29, K. Hills). It was expected to brighten up to 14 mag from winter to summer. But it is much fainter actually. It will be 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 18  16  8.32  -40  4.8   1.877   2.823   153   18.3  22:20 (  0, 15)  
June 25  16  6.04  -39 54.5   1.956   2.869   148   18.4  21:50 (  0, 15)

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