Weekly Information about Bright Comets (2016 July 9: North)

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Updated on July 9, 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 7.3 mag (July 5, Willian Souza). It will be fading gradually after this. It is observable in excellent condition in the Southern Hemisphere. In the Northern Hemisphere, it locates low in the south.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  9  15 44.66  -43 36.5   0.898   1.751   132    7.2  21:01 (  6, 11)  
July 16  15  5.28  -39 10.4   1.090   1.816   119    7.8  20:56 ( 18, 13)  

* 9P/Tempel 1

Now it is 11.5 mag (July 3, 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)  
July  9  12 50.73   -1 33.7   1.272   1.562    85   11.4  21:01 ( 63, 31)  
July 16  13  4.82   -4  8.7   1.306   1.552    82   11.4  20:56 ( 62, 27)  

* 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)  
July  9   9 58.00   13 48.8   2.238   1.596    39   11.7  21:01 (103,  5)  
July 16  10 17.64   12  8.7   2.262   1.593    38   11.7  20:56 (102,  4)  

* 43P/Wolf-Harrington

Now it is 13.4 mag (July 3, Ken-ichi Kadota). It will brighten up to 11 mag from summer to autumn. 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)  
July  9   4 46.96   25 58.2   2.170   1.437    33   11.9   3:09 (245,  9)  
July 16   5 12.86   25 42.3   2.131   1.414    34   11.7   3:15 (246, 10)  

* C/2014 S2 ( PanSTARRS )

Now it is 11.3 mag (July 1, Carlos Labordena). 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)  
July  9  11 23.15   21 39.7   3.616   3.185    57   11.9  21:01 ( 99, 26)  
July 16  11 28.25   19 37.4   3.754   3.240    52   12.1  20:56 ( 99, 22)  

* C/2014 W2 ( PanSTARRS )

Now it is 12.5 mag (July 2, Juan Jose Gonzalez). It will be fading gradually after August. In the Northern Hemisphere, it keeps observable until early November. It becomes observable in the evening sky from July to September also in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  9  15 14.40   51 17.5   2.777   2.951    89   12.8  21:01 (151, 71)  
July 16  15 10.68   47 33.1   2.836   2.982    88   12.9  20:56 (134, 70)  

* 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)  
July  9   5 22.13   23 11.1   2.403   1.551    25   13.8   3:09 (242,  1)  
July 16   5 46.08   23 13.5   2.359   1.523    26   13.2   3:15 (243,  3)  

* 29P/Schwassmann-Wachmann 1

It brightened up to 14 mag in minor outburst in early June. But it is faint as 15.5 mag now (July 8, 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)  
July  9  19 38.01  -25 43.3   4.911   5.922   173   13.2   0:31 (  0, 29)  
July 16  19 34.41  -25 46.1   4.907   5.921   175   13.2  23:55 (  0, 29)  

* 237P/LINEAR

It brightened rapidly up to 13.1 mag (July 2, Juan Jose Gonzalez). It will be observable at 12-13 mag until autumn.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  9  13 23.98  -12 59.1   1.740   2.122    97   13.7  21:01 ( 47, 28)  
July 16  13 33.19  -12 55.7   1.796   2.104    92   13.5  20:56 ( 50, 26)  

* 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. In the Northern Hemisphere, it will be getting higher in the morning sky. It is not observable after this in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  9   5 46.49   47 29.2   4.401   3.563    30   13.7   3:09 (220, 12)  
July 16   5 50.94   47 48.4   4.433   3.642    34   13.8   3:15 (223, 16)  

* 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)  
July  9   7 10.53   16 12.5   2.588   1.581     6   14.1   3:09 (229,-22)  
July 16   7 33.22   15 15.7   2.545   1.540     6   13.9   3:15 (232,-21)  

* 53P/Van Biesbroeck

Now it is very bright as 12.9 mag (July 3, Juan Jose Gonzalez). It will be observable at 13 mag in good condition from spring to summer.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  9  21 14.90  -11 34.5   1.566   2.494   149   13.9   2:07 (  0, 44)  
July 16  21 12.82  -12  2.0   1.543   2.507   156   13.9   1:37 (  0, 43)  

* C/2015 WZ ( PanSTARRS )

It brightened up to 10-11 mag in May. Now it is fading rapidly. But it is bright as 12.2 mag still now (June 26, Thomas Lehmann). It is observable in excellent conditione in the Northern Hemisphere. It is getting higher after this also in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  9  16  9.58   37 36.5   1.259   1.824   106   14.0  21:01 (155, 88)  
July 16  15 42.04   30 53.3   1.389   1.887   102   14.6  20:56 ( 72, 78)  

* C/2011 KP36 ( Spacewatch )

Now it is 14.3 mag (July 3, Alan Hale). 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)  
July  9   0 43.57    2 28.8   4.681   4.893    96   14.2   3:09 (305, 43)  
July 16   0 46.36    2 24.0   4.582   4.897   102   14.2   3:15 (314, 48)  

* 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)  
July  9   7  2.29   18 26.1   2.999   1.988     4   14.3   3:09 (229,-19)  
July 16   7 19.88   18  6.7   3.001   1.994     6   14.4   3:15 (232,-17)  

* 116P/Wild 4

Now it is 13.9 mag (July 2, Chris Wyatt). It will be fading gradually after this. 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)  
July  9  15 19.72  -22 30.0   1.770   2.509   126   14.7  21:01 ( 14, 31)  
July 16  15 22.49  -22 36.0   1.862   2.532   120   14.9  20:56 ( 19, 30)  

* 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)  
July  9   8 35.89   54 25.1   5.086   4.300    35   14.9  21:01 (146, 16)  
July 16   8 47.83   53 57.0   5.029   4.236    34   14.8  20:56 (147, 14)  

* 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)  
July  9   7  8.85  -48 26.7   2.432   2.307    70   14.9   3:09 (306,-53)  
July 16   7 35.75  -50 37.3   2.419   2.316    71   14.9   3:15 (309,-52)  

* 77P/Longmore

Now it is 14.2 mag (July 2, Chris Wyatt). 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)  
July  9  12 52.08  -22 27.4   2.074   2.368    93   14.9  21:01 ( 47, 16)  
July 16  12 59.54  -23 28.6   2.160   2.376    89   15.1  20:56 ( 49, 12)  

* 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 17.1 mag (June 29, Hidetaka Sato). 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)  
July  9  16 37.02   -1 15.4   0.895   1.776   136   15.1  21:26 (  0, 54)  
July 16  16 39.83   -2 42.8   0.997   1.839   131   15.9  21:01 (  0, 52)  

* 146P/Shoemaker-LINEAR

Now it is 15.4 mag (July 3, Hidetaka Sato), brighter than originally predicted. Now it is brightest. In the Southern Hemisphere, it keeps observable until winter, but it locates somewhat low. In the Northern Hemisphere, it will be getting higher after this, and it will be observable in excellent condition.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  9   3 39.29    8 27.0   1.789   1.434    53   15.2   3:09 (269, 13)  
July 16   3 58.55   10 45.1   1.771   1.442    54   15.2   3:15 (269, 17)  

* C/2016 A8 ( LINEAR )

Now it is 15.5 mag (July 5, Hidetaka Sato). It will brighten up to 14 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)  
July  9   1 38.95   42  3.1   2.075   1.987    70   16.1   3:09 (244, 50)  
July 16   1 26.96   43 16.1   1.898   1.961    78   15.8   3:15 (243, 59)  

* 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)  
July  9  10 33.00   -7 52.8   1.246   1.105    57   15.9  21:01 ( 80,  0)  
July 16  11  9.39  -10 31.8   1.343   1.214    60   16.5  20:56 ( 76,  1)  

* C/2015 ER61 ( PanSTARRS )

Now it is 16.6 mag (June 29, MASTER-SAAO Observatory). 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)  
July  9  11 18.59   -0 33.8   4.530   4.182    63   16.0  21:01 ( 80, 13)  
July 16  11 22.68   -0 51.0   4.554   4.110    58   15.9  20:56 ( 82,  9)  

* 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)  
July  9  13 45.97  -24 57.8   4.028   4.420   106   16.2  21:01 ( 35, 21)  
July 16  13 49.02  -24 48.9   4.155   4.450   100   16.3  20:56 ( 39, 19)  

* 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)  
July  9  19 36.99  -10 49.6   5.215   6.210   167   16.3   0:30 (  0, 44)  
July 16  19 30.00  -10 36.5   5.167   6.167   168   16.3  23:50 (  0, 44)  

* 339P/2016 N1 ( 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. Now it is 18.8 mag (July 3, E. Schwab, D. Abreu), fainter than predicted by 2 mag.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  9   0 23.17  -18 58.5   1.985   2.499   108   16.5   3:09 (326, 28)  
July 16   0 26.80  -18 28.0   1.892   2.480   113   16.4   3:15 (333, 32)  

* 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)  
July  9  11 44.51    9 12.3   3.901   3.609    65   16.4  21:01 ( 84, 24)  
July 16  11 50.11    8 20.0   3.975   3.593    60   16.5  20:56 ( 86, 20)  

* C/2016 B1 ( NEOWISE )

Now it is 16.2 mag (June 29, iTelescope Observatory, Siding Spring). 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)  
July  9  12 29.91  -25 20.5   3.349   3.503    90   16.5  21:01 ( 49, 10)  
July 16  12 37.03  -24 15.9   3.417   3.478    84   16.5  20:56 ( 52,  8)  

* C/2015 B2 ( PanSTARRS )

Now it is 17.8 mag (June 30, A. Maury, J.-B. de Vanssay, J.-F. Soulier, J.-G. Bosch, T. Noel). 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)  
July  9   3 44.06  -38 43.1   3.479   3.422    78   16.5   3:09 (307,-15)  
July 16   3 42.36  -39 37.9   3.411   3.433    82   16.5   3:15 (312,-10)  

* 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)  
July  9  16 43.47   35 34.6   5.883   6.334   112   16.7  21:32 (180, 89)  
July 16  16 40.10   35 39.5   5.929   6.326   108   16.7  21:01 (180, 89)  

* 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 18.6 mag now (June 30, A. Maury, J.-B. de Vanssay, J.-F. Soulier, J.-G. Bosch, T. Noel).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  9  23 18.52  -11 55.8   2.314   2.968   120   16.8   3:09 (340, 41)  
July 16  23 19.57  -11 44.6   2.217   2.946   127   16.7   3:15 (350, 43)  

* 56P/Slaughter-Burnham

Now it is 16.2 mag (July 5, Hidetaka Sato). It will be observable at 16 mag in good condition from autumn to winter. It locates somewhat low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  9   2 54.69   21 34.5   2.867   2.510    59   16.8   3:09 (263, 29)  
July 16   3  6.37   22 42.2   2.795   2.509    63   16.7   3:15 (264, 34)  

* 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)  
July  9  17 45.95  -11 14.1   1.808   2.770   156   16.8  22:34 (  0, 44)  
July 16  17 41.49  -11  3.1   1.825   2.748   149   16.8  22:02 (  0, 44)  

* 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)  
July  9  13  7.91   68  0.3   7.583   7.278    68   16.9  21:01 (156, 48)  
July 16  13  4.61   66 49.5   7.618   7.277    66   16.9  20:56 (153, 46)  

* 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)  
July  9   0  5.95   39 35.2   4.824   4.896    88   16.9   3:09 (250, 68)  
July 16  23 59.50   40 41.0   4.750   4.925    93   16.9   3:15 (242, 75)  

* 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)  
July  9  17 32.58   24 38.8   5.461   6.127   126   17.0  22:21 (  0, 80)  
July 16  17 28.31   23 52.9   5.558   6.187   124   17.1  21:49 (  0, 79)  

* 22P/Kopff

It brightened up to 10 mag in 2015 autumn. Now it is appearing in the morning sky. However, it has already faded down to 16.8 mag (June 13, iTelescope Observatory, Siding Spring).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  9   2 59.85   12 39.4   3.119   2.771    60   17.1   3:09 (270, 23)  
July 16   3  7.52   13  3.6   3.074   2.812    65   17.2   3:15 (274, 29)  

* 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)  
July  9  14 33.19    8 12.0   6.298   6.632   104   17.1  21:01 ( 46, 55)  
July 16  14 32.38    8 26.6   6.429   6.655    98   17.2  20:56 ( 54, 51)  

* C/2016 K1 ( LINEAR )

Now it is 17.5 mag (June 17, Catalina Sky Survey). 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)  
July  9  22 45.46   16 59.3   1.670   2.292   114   17.2   3:09 (338, 71)  
July 16  22 29.22   21 11.6   1.595   2.292   121   17.1   2:54 (  0, 76)  

* 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)  
July  9  23 26.96   -2 47.6   4.814   5.334   115   17.3   3:09 (333, 49)  
July 16  23 26.81   -2 56.8   4.764   5.378   122   17.3   3:15 (346, 51)  

* 47P/Ashbrook-Jackson

Now it is 18.4 mag (June 30, C. Jacques, E. Pimentel, J. Barros). 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)  
July  9  19  5.00  -40 27.5   2.382   3.363   161   17.4  23:53 (  0, 15)  
July 16  18 58.73  -40 25.0   2.376   3.344   158   17.3  23:19 (  0, 15)  

* 226P/Pigott-LINEAR-Kowalski

Now it is 17.1 mag (July 3, Hidetaka Sato). It had been lost for a long time over 200 years since its discovery in 1783. The condition of this apparition is excellent, and it will brighten up to 15 mag in autumn. In the Northern Hemisphere, it will be getting higher rapidly after this, and will be observable in excellent condition from summer to winter. In the Southern Hemisphere, it keeps observable in good condition until November.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  9   3 33.42   -8 52.1   2.097   1.857    62   17.5   3:09 (284,  4)  
July 16   3 46.02   -7  1.4   2.033   1.839    64   17.3   3:15 (285,  9)  

* 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)  
July  9   3 37.66   65 56.9   6.136   5.620    55   17.4   3:09 (210, 35)  
July 16   3 47.10   67  9.4   6.125   5.660    58   17.5   3:15 (208, 38)  

* 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)  
July  9  17 17.69  -37 28.7   8.796   9.696   150   17.5  22:06 (  0, 17)  
July 16  17 13.51  -37 32.0   8.889   9.730   144   17.6  21:35 (  0, 17)  

* 340P/2016 N2 ( Boattini )

First return of a new periodic comet discovered in 2008. It keeps observable at 17.5 mag until autumn. Now it is 19.3 mag (July 5, A. C. Gilmore, P. M. Kilmartin), fainter than predicted.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
July  9  20 35.80  -18  9.9   2.162   3.138   160   17.6   1:28 (  0, 37)  
July 16  20 31.62  -18 20.2   2.129   3.131   167   17.6   0:57 (  0, 37)  

* 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)  
July  9  17 42.80  -63 49.8   4.213   4.993   135   17.6  22:32 (  0, -9)  
July 16  17 38.90  -63 21.3   4.237   4.988   133   17.6  22:01 (  0, -8)  

* 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)  
July  9   1 58.18   57  2.5   1.832   1.685    65   17.6   3:09 (221, 47)  
July 16   1 34.48   59 10.4   1.755   1.748    72   18.0   3:15 (215, 54)  

* 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)  
July  9  13 12.63  -21 58.1   9.010   9.205    97   17.9  21:01 ( 44, 19)  
July 16  13 13.94  -21 49.6   9.123   9.209    91   17.9  20:56 ( 48, 16)  

* 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)  
July  9  16  4.99  -39 24.7   2.142   2.965   136   18.7  21:01 (  1, 16)  
July 16  16  6.26  -39  8.1   2.249   3.014   130   18.9  20:56 (  6, 16)  

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