Weekly Information about Bright Comets (2016 Oct. 8: North)

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Updated on October 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/2016 R3 ( Borisov )

It will approach to the Sun down to 0.45 a.u. on Oct. 10. But it is not observable now. It was 12.5-13.0 mag on Sept. 24 (Michael Jager). It will never be observable again in the Northern Hemisphere. In the Southern Hemisphere, it will appear in the evening sky at 14 mag in November, but it keeps extremely low after that. It has a very similar orbit to Comet C/1915 R1 ( Mellish ).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  8  13 15.87    8 32.3   1.334   0.455    15   10.7  18:58 (103, -5)  
Oct. 15  14  3.70   -1 12.6   1.374   0.460    12   10.8  18:49 ( 91, -5)  

* C/2013 X1 ( PanSTARRS )

It brightened up to 6.2 mag in June (June 24, Marco Goiato). Now it is fading. It has already faded down to 13.3 mag (Sept. 28, Chris Wyatt). It it not observable already in the Northern Hemisphere. It will be unobservable soon also in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  8  14 32.93  -28  8.8   3.476   2.684    32   12.0  18:58 ( 63,-11)  
Oct. 15  14 36.50  -28 20.8   3.612   2.758    26   12.2  18:49 ( 65,-14)  

* 144P/Kushida

Now it is bright as 11.7 mag (Oct. 5, Katsumi Yoshimoto). It keeps locating extremely low until November in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  8  10 21.32    7 27.7   2.105   1.495    40   12.1   4:36 (276, 21)  
Oct. 15  10 40.30    5 26.0   2.099   1.519    42   12.5   4:41 (280, 23)  

* 237P/LINEAR

It brightened very rapidly and became brighter than expected. Now it is very bright as 12.9 mag (Oct. 4, Chris Wyatt). It will be unobservable in November in the Southern Hemisphere, or in December in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  8  16 17.02  -16 48.0   2.463   1.985    50   12.3  18:58 ( 56, 15)  
Oct. 15  16 33.65  -17  1.0   2.515   1.985    47   12.3  18:49 ( 57, 14)  

* 43P/Wolf-Harrington

Now it is 12.5 mag (Oct. 5, Chris Wyatt). It will be getting higher gradually after this, but it will be fading.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  8   9 47.52    3 49.5   1.938   1.467    47   12.6   4:36 (284, 26)  
Oct. 15  10  4.93    1 19.6   1.933   1.498    49   12.8   4:41 (289, 27)  

* C/2015 V2 ( Johnson )

Now it is 13.3 mag (Sept. 5, Alan Hale). It is expected to brighten up to 7 mag in 2017 summer. In the Northern Hemisphere, 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)  
Oct.  8  11 29.42   47 52.3   3.887   3.445    56   13.0   4:36 (229, 27)  
Oct. 15  11 44.05   47 22.5   3.768   3.379    59   12.9   4:41 (231, 30)  

* 9P/Tempel 1

Now it is 13.5 mag (Oct. 5, Thomas Lehmann). It will be fading gradually after this. In the Northern Hemisphere, it keeps low after this. In the Southern Hemisphere, it will be getting lower after this, and it will be unobservable in December.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  8  16 54.65  -28 21.2   1.914   1.673    60   13.0  18:58 ( 42, 12)  
Oct. 15  17 16.92  -29  8.3   1.984   1.700    58   13.2  18:49 ( 41, 12)  

* 81P/Wild 2

It brightened up to 11 mag from spring to summer. Now it is not observable. It will be observable at 16 mag again in 2017 spring.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  8  14  5.49  -10 27.4   2.697   1.774    18   13.3  18:58 ( 81, -6)  
Oct. 15  14 23.72  -12  1.4   2.743   1.804    15   13.5  18:49 ( 80, -7)  

* C/2014 S2 ( PanSTARRS )

It brightened up to 8-9 mag from winter to spring. Now it is fading. It has already faded down to 12.9 mag (July 23, Chris Wyatt). It is not observable now. It will appear in the morning sky at 14 mag in November in the Northern Hemisphere, or in December in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  8  12 34.22    0 55.0   4.912   3.927     8   13.5   4:36 (262,-10)  
Oct. 15  12 39.31   -0 18.4   4.949   3.985    13   13.6   4:41 (267, -5)  

* 29P/Schwassmann-Wachmann 1

Now it is faint as 16.8 mag (Oct. 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)  
Oct.  8  19 17.79  -24 46.1   5.766   5.898    92   13.6  18:58 ( 13, 29)  
Oct. 15  19 19.93  -24 34.6   5.876   5.896    86   13.6  18:49 ( 17, 28)  

* C/2016 A8 ( LINEAR )

Now it is so bright as 12.7 mag (Oct. 2, Juan Jose Gonzalez). It will be low in November, but it keeps observable in good condition for a while.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  8  18 56.67   -4 59.2   1.662   1.938    89   13.6  18:58 ( 26, 46)  
Oct. 15  18 50.37   -8 33.3   1.845   1.960    81   14.0  18:49 ( 32, 41)  

* C/2015 TQ209 ( LINEAR )

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)  
Oct.  8  12 10.79   -6 36.7   2.502   1.533    10   13.8   4:36 (272, -9)  
Oct. 15  12 31.69   -8 27.6   2.535   1.574    12   14.0   4:41 (275, -8)  

* 226P/Pigott-LINEAR-Kowalski

It had been lost for a long time over 200 years since its discovery in 1783. It brightened rapidly, and reached up to 13.9 mag in September (Spet. 1, Sandor Szabo). Now it is 14.5 mag (Oct. 5, Thomas Lehmann). It will be fading after this. It is observable in excellent condition for a while in the Northern Hemisphere. It will be unobservable in November in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  8   5 32.41   21  1.5   1.180   1.803   111   13.9   4:25 (  0, 76)  
Oct. 15   5 33.80   24 49.0   1.122   1.815   117   13.9   3:59 (  0, 80)  

* C/2011 KP36 ( Spacewatch )

Now it is bright as 12.2 mag (Oct. 5, Chris Wyatt). Distant object, but it keeps observable at 13-14 mag for a long time from 2015 to 2016.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  8   0 41.44   -3  0.6   3.991   4.979   170   14.0  23:31 (  0, 52)  
Oct. 15   0 39.34   -3 32.7   4.023   4.989   164   14.0  23:01 (  0, 52)  

* C/2015 ER61 ( PanSTARRS )

Now it is 16.4 mag (Aug. 12, Thomas Lehmann). It will be unobservable temporarily from summer to autumn. Then it will appear in the morning sky at 13 mag in December. 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)  
Oct.  8  12 44.32   -8 19.1   4.205   3.208     3   14.7   4:36 (268,-17)  
Oct. 15  12 53.49   -9 11.8   4.118   3.130     6   14.5   4:41 (272,-13)  

* C/2014 W2 ( PanSTARRS )

Now it is 14.2 mag (Sept. 24, Kunihiro Shima). It will be fading gradually after this. It will be unobservable soon. But it will appear in the morning sky again at 16 mag in winter.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  8  15 47.01   12 29.2   4.051   3.441    46   14.6  18:58 ( 86, 27)  
Oct. 15  15 52.80   10 36.7   4.156   3.485    42   14.7  18:49 ( 86, 24)  

* C/2013 US10 ( Catalina )

It brightened up to 6 mag from autumn to winter. Now it is fading. It has already faded down to 14.6 mag (Sept. 9, Katsumi Yoshimoto). It is observable in good condition in the Northern Hemisphere. It is not observable after this in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  8   5 41.99   55 16.3   4.181   4.545   105   14.7   4:36 (180, 70)  
Oct. 15   5 32.52   55 56.6   4.151   4.617   111   14.7   3:59 (180, 69)  

* (3200) Phaethon

Now it is 14.9 mag (Sept. 29, Sandor Szabo). In the Northern Hemisphere, it will be observable at 15 mag in good condition from September to October. In the Southern Hemisphere, it is not observable until November.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  8  20 53.89   77 21.3   0.425   1.164   102   14.8  19:51 (180, 48)  
Oct. 15  21 53.70   64  7.0   0.474   1.264   113   14.9  20:18 (180, 62)  

* 53P/Van Biesbroeck

It brightened up to 12.5 mag in summer (Aug. 3, Marco Goiato). Now it is fading. It has already faded down to 14.0 mag (Sept. 28, Chris Wyatt). It keeps observable in good condition for a while.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  8  20 59.26  -17 25.8   2.144   2.750   117   14.9  19:50 (  0, 38)  
Oct. 15  21  3.71  -17 21.7   2.252   2.776   111   15.0  19:27 (  0, 38)  

* 315P/2013 V6 ( LONEOS )

Now it is 15.8 mag (Sept. 24, Kunihiro Shima). It will brighten up to 14 mag from winter to spring in 2017, and it will be observable in excellent condition in the Northern Hemisphere. In the Southern Hemisphere, it keeps extremely low until November, and it will be low also around the higlight.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  8   9 33.00   26 41.4   2.833   2.466    58   15.3   4:36 (263, 41)  
Oct. 15   9 46.95   26 19.3   2.753   2.456    62   15.2   4:41 (266, 44)  

* 56P/Slaughter-Burnham

Now it is 14.9 mag (Sept. 24, Kunihiro Shima). It will be observable at 15-16 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)  
Oct.  8   4 44.12   32 33.4   1.931   2.586   120   15.2   3:37 (  0, 88)  
Oct. 15   4 45.46   33  5.8   1.875   2.599   126   15.2   3:11 (  0, 88)  

* D/1978 R1 ( Haneda-Campos )

It has been lost since its discovery in 1978. In 2016, it is expected to return in excellent condition from autumn to winter.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  8  20 14.35  -29 35.4   0.697   1.350   104   15.5  19:06 (  0, 26)  
Oct. 15  20 31.34  -28 14.6   0.704   1.327   101   15.3  18:55 (  0, 27)  

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

It has brightened in outburst up to 14 mag twice, in 2006 January and 2011 May. Third outburst occured on Aug. 28, and it brightened up to 14.8 mag (Aug. 30, Juan Jose Gonzalez). It is bright as 15.4 mag still now (Sept. 29, Sandor Szabo). It is observable in good condition for a while.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  8   1 15.87    5 37.1   5.348   6.344   174   15.4   0:10 (  0, 61)  
Oct. 15   1 13.32    5 19.1   5.361   6.357   176   15.5  23:35 (  0, 60)  

* C/2016 R2 ( PanSTARRS )

Now it is very bright as 15.6 mag (Sept. 11, Hidetaka Sato). It will be observable at 11 mag for a long time from 2017 to 2018. Now it is observable in excellent condition in the Southern Hemisphere. But it keeps low for a while in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  8   3 45.75  -40 35.6   5.532   6.083   119   15.6   2:39 (  0, 14)  
Oct. 15   3 42.15  -41  1.2   5.460   6.032   120   15.5   2:08 (  0, 14)  

* C/2016 N4 ( MASTER )

Now it is 15.2 mag (Sept. 23, Kunihiro Shima). It will brighten up to 14 mag from summer to winter in 2017. Then it will be observable in excellent condition in the Northern Hemisphere. In the Southern Hemisphere, it is hardly observable around the highlight.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  8  23 21.61  -16 20.8   3.640   4.518   147   15.9  22:11 (  0, 39)  
Oct. 15  23 14.72  -15 46.5   3.661   4.475   140   15.8  21:37 (  0, 39)  

* C/2015 O1 ( PanSTARRS )

Now it is 16.2 mag (Aug. 31, Sandor Szabo). It will be observable at 13 mag for a long time from 2017 to 2018. In 2016, it keeps observable at 16 mag in good condition until autumn.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  8  18 32.16   -8 54.4   5.682   5.657    83   16.1  18:58 ( 32, 41)  
Oct. 15  18 31.26   -8 46.6   5.762   5.615    76   16.1  18:49 ( 37, 39)  

* 93P/Lovas 1

Now it is 16.1 mag (Sept. 7, Alexander Baransky). It will brighten up to 15 mag in winter. But it will be getting lower gradually after autumn.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  8  21 55.66   -9 59.9   1.418   2.220   132   16.3  20:46 (  0, 45)  
Oct. 15  21 53.84   -9 27.7   1.444   2.179   125   16.2  20:16 (  0, 46)  

* C/2015 VL62 ( Lemmon-Yeung-PanSTARRS )

Now it is 15.8 mag (Sept. 30, Sandor Szabo). It will brighten up to 13 mag and will be observable in good condition in 2017 summer. In 2016, it keeps observable until winter when it will brighten up to 15.5 mag. It locates somewhat low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  8   2 42.34   31 16.9   3.374   4.226   144   16.4   1:36 (  0, 86)  
Oct. 15   2 28.82   30 49.2   3.266   4.177   152   16.3   0:55 (  0, 86)  

* C/2014 B1 ( Schwartz )

Now it is 16.5 mag (Apr. 5, Yasukazu Ikari). It keeps 16-17 mag for a long time from 2016 to 2019. It keeps locating near by the equator.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  8   9 11.65    2 35.2  10.257   9.739    56   16.3   4:36 (292, 32)  
Oct. 15   9 14.02    2 24.1  10.153   9.732    62   16.3   4:41 (298, 37)  

* 118P/Shoemaker-Levy 4

Now it is 17.8 mag (Sept. 24, Kunihiro Shima). It will be getting higher after this, and it will be observable at 17 mag in good condition in winter.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  8  10 28.74    8  0.5   2.853   2.170    39   16.5   4:36 (274, 20)  
Oct. 15  10 42.04    6 57.3   2.821   2.192    42   16.6   4:41 (278, 23)  

* 188P/LINEAR-Mueller

It brightened rapidly, and reached up to 16.3 mag now (Sept. 7, Alexander Baransky). It is observable at 16.5 mag in good condition from autumn to winter.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  8  22 36.66  -11 27.8   1.865   2.719   141   16.5  21:27 (  0, 44)  
Oct. 15  22 34.58  -11  5.7   1.912   2.704   134   16.5  20:57 (  0, 44)  

* 74P/Smirnova-Chernykh

Now it is 18.5 mag (Aug. 11, CAO, San Pedro de Atacama). It will be observable at 16 mag in good condition from autumn to winter. It locates low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  8   7 19.77   24  5.3   3.800   3.874    86   16.7   4:36 (291, 66)  
Oct. 15   7 23.92   24  7.1   3.687   3.866    92   16.6   4:41 (302, 72)  

* C/2013 V4 ( Catalina )

It brightened up to 15 mag in early 2016. Now it is fading. In the Northern Hemisphere, it keeps observable in good condition for a long time until 2017 autumn when the comet will be fainter than 18 mag. It will never be observable after this in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  8  12 49.54   68 10.0   6.060   5.865    74   16.6   4:36 (204, 26)  
Oct. 15  13  4.70   67 39.8   6.046   5.889    76   16.6   4:41 (205, 28)  

* C/2014 OE4 ( PanSTARRS )

Now it is 16.5 mag (Aug. 31, Sandor Szabo). It keeps 16.5 mag from 2016 to 2017. It is observable in good condition in the Northern Hemisphere. In the Southern Hemisphere, it will never be observable again.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  8  16 44.07   32 52.9   6.588   6.260    66   16.8  18:58 (102, 48)  
Oct. 15  16 47.88   32 42.0   6.626   6.257    64   16.8  18:49 (103, 45)  

* P/2016 R1 ( Catalina )

First return of a new periodic comet discovered in 2007. Now it is 19.4 mag (Sept. 1, K. Sarneczky, P. Szekely). It was expected to brighten up to 16.5 mag and will be observable in good condition from autumn to winter. But actually, it is fainter than predicted by 1.5 mag.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  8   3 42.94  -12 42.7   1.652   2.457   134   17.0   2:36 (  0, 42)  
Oct. 15   3 41.48  -13 15.0   1.593   2.434   138   16.9   2:07 (  0, 42)  

* C/2015 V1 ( PanSTARRS )

Now it is 17.8 mag (Sept. 1, Kunihiro Shima). It will brighten up to 15 mag and will be observable in good condition from autum to winter in 2017. In the Northern Hemisphere, it keeps observable in good condition for a long time while the comet will be brightening. It is not observable until 2017 summer in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  8   4 46.71   59 30.6   5.109   5.544   110   17.0   3:41 (180, 65)  
Oct. 15   4 35.65   59 46.4   4.982   5.509   117   16.9   3:02 (180, 65)  

* 219P/LINEAR

Now it is 17.2 mag (Sept. 7, Alexander Baransky). It keeps 16-17 mag and keeps observable in good condition until autumn.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  8  18 15.60  -12 46.8   2.516   2.526    79   16.9  18:58 ( 34, 35)  
Oct. 15  18 25.02  -12 53.7   2.584   2.511    74   17.0  18:49 ( 36, 34)  

* 47P/Ashbrook-Jackson

Now it is 16.9 mag (July 30, Yasukazu Ikari). 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)  
Oct.  8  18 56.83  -34  8.1   3.022   3.134    87   17.2  18:58 ( 15, 19)  
Oct. 15  19  3.65  -33 27.6   3.101   3.118    81   17.2  18:49 ( 18, 19)  

* C/2014 A4 ( SONEAR )

It brightened up to 15 mag from late 2014 to early 2016. Now it is fading slowly. Now it is 16.7 mag (Sept. 2, Kunihiro Shima). In the Northern Hemisphere, it will be observable at 16-17 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)  
Oct.  8  21 50.35   41  4.2   4.662   5.311   125   17.2  20:40 (180, 84)  
Oct. 15  21 42.40   40  1.9   4.746   5.345   122   17.3  20:04 (180, 85)  

* 2P/Encke

Now it is 18.1 mag (Oct. 6, Kunihiro Shima). It will pass the perihelion on Mar. 10, 2017. In the Northern Hemisphere, it keeps observable in the evening sky until late February while the comet will be brightening up to 8.5 mag. In the Southern Hemisphere, it will appear in the morning sky in late March at 8 mag, then it keeps observable while the comet will be fading.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  8   0  6.02   13 43.1   1.373   2.354   165   17.2  22:55 (  0, 69)  
Oct. 15  23 52.29   12 33.4   1.334   2.289   157   17.2  22:14 (  0, 68)  

* 136P/Mueller 3

Now it is 17.2 mag (Sept. 2, Alexander Baransky). It tends to be brightest after the perihelion passage. It is observable at 17.5 mag in good condition from autumn to winter.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  8   2 37.22    1 41.5   2.128   3.059   154   17.3   1:31 (  0, 57)  
Oct. 15   2 33.53    1  6.8   2.109   3.067   160   17.3   1:00 (  0, 56)  

* C/2010 U3 ( Boattini )

It will pass the perihelion in 2019. However, it has not been brightening since the discovery in 2010. Now it is 18.1 mag (Aug. 10, D. Buczynski). It keeps 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)  
Oct.  8   4 42.05   58 58.5   9.447   9.859   111   17.3   3:36 (180, 66)  
Oct. 15   4 40.11   59 31.6   9.349   9.839   116   17.3   3:06 (180, 65)  

* 343P/2016 P3 ( NEAT-LONEOS )

Now it is 18.3 mag (Oct. 6, Kunihiro Shima). It will be observable at 17.5 mag in good condition in autumn.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  8  22 51.76    2 12.1   1.563   2.474   149   17.4  21:42 (  0, 57)  
Oct. 15  22 50.33    1 45.2   1.588   2.452   141   17.4  21:13 (  0, 57)  

* C/2015 X7 ( ATLAS )

It was observed at 17 mag last winter. It will be observable at 17 mag again next winter. It is observable in good condition in the Northern Hemisphere. But it locates low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  8  10 16.62   12 19.1   4.400   3.737    43   17.4   4:36 (272, 25)  
Oct. 15  10 24.47   12 39.3   4.332   3.748    48   17.4   4:41 (276, 30)  

* 33P/Daniel

Now it is 18.7 mag (Aug. 4, Jean-Francois Soulier). In the Northern Hemisphere, it is observable at 17.5 mag in excellent condition from autumn to winter. It keeps extremely low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  8   8 49.73   30 25.0   2.343   2.192    68   17.5   4:36 (263, 51)  
Oct. 15   9  4.58   30 40.3   2.281   2.202    72   17.4   4:41 (265, 55)  

* P/2016 Q1 ( Read )

First return of a new periodic comet discovered in 2005. Now it is 18.9 mag (Aug. 28, K. Sarneczky, P. Szekely). In the Northern Hemisphere, it will be observable at 17 mag in excellent condition in winter. It locates somewhat low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  8   4  1.52   24  7.6   2.060   2.825   131   17.6   2:55 (  0, 79)  
Oct. 15   4  1.04   24  6.3   1.996   2.823   138   17.5   2:27 (  0, 79)  

* C/2015 B2 ( PanSTARRS )

Now it is 18.0 mag (July 24, CAO, San Pedro de Atacama). It keeps 17 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)  
Oct.  8   1  1.88  -51 45.6   3.030   3.663   122   17.5  23:50 (  0,  3)  
Oct. 15   0 40.94  -50 55.8   3.089   3.689   119   17.6  23:01 (  0,  4)  

* P/2015 TP200 ( LINEAR )

Now it is 18.2 mag (Aug. 25, Michael Jager). In the Northern Hemisphere, it will be observable at 17 mag in excellent condition in winter. It locates low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  8   7  0.46   31 51.8   3.204   3.388    91   17.6   4:36 (276, 74)  
Oct. 15   7  6.22   32  3.2   3.108   3.387    97   17.6   4:41 (282, 79)  

* 2016 PN66

Peculiar asteroid with a comet-like orbit. It is observable at 18 mag in good condition in October.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  8   3  5.84   -4 40.9   2.023   2.904   145   17.8   2:00 (  0, 51)  
Oct. 15   2 54.94   -8 53.3   1.992   2.903   150   17.7   1:21 (  0, 46)  

* 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 17.1 mag (Sept. 23, Kunihiro Shima). It will be fainter than 18 mag in October.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  8  23  1.59   -7 17.8   5.037   5.914   148   17.8  21:51 (  0, 48)  
Oct. 15  23  0.02   -7 34.2   5.147   5.959   141   17.8  21:22 (  0, 48)  

* C/2016 S1 ( PanSTARRS )

Now it is 17.5 mag (Sept. 23, iTelescope Observatory, Siding Spring). It keeps 17 mag for a long time from 2016 autumn to 2017 summer, and it keeps observable good condition all through that period in the Southern Hemisphere. In the Northern Hemisphere, it will be unobservable soon, then it will never be observable again.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  8   4 56.35  -35 40.9   2.334   2.834   109   17.9   3:49 (  0, 19)  
Oct. 15   4 52.86  -40  1.3   2.284   2.802   111   17.8   3:18 (  0, 15)  

* 128P/Shoemaker-Holt 1

It keeps observable at 17.5 mag in good condition from autumn to winter.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  8   3 42.10   18 32.8   2.291   3.101   137   17.9   2:35 (  0, 74)  
Oct. 15   3 40.45   18 16.3   2.226   3.095   144   17.9   2:06 (  0, 73)  

* 340P/2016 N2 ( Boattini )

First return of a new periodic comet discovered in 2008. Now it is 18.8 mag (Sept. 7, Alexander Baransky), fainter than this ephemeris.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  8  20 10.39  -18 56.3   2.645   3.071   105   17.9  19:01 (  0, 36)  
Oct. 15  20 14.61  -18 42.0   2.737   3.068    99   17.9  18:49 (  3, 36)  

* 338P/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 was expected to brighten up to 15.5 mag in autumn and will be observable in good condition. But actually, it is 17.3 mag (Oct. 6, Kunihiro Shima), fainter than originally expected by 2-3 mag.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  8  23 34.34  -10 56.8   1.386   2.325   153   17.9  22:24 (  0, 44)  
Oct. 15  23 28.02   -9 39.3   1.420   2.319   146   17.9  21:50 (  0, 46)  

* 341P/2016 N3 ( Gibbs )

Now it is 17.0 mag (Aug. 31, Kunihiro Shima). It is observable at 18 mag in excellent condition in autumn.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  8   1 26.25    7 54.7   1.691   2.684   171   17.9   0:20 (  0, 63)  
Oct. 15   1 21.34    7 37.6   1.704   2.701   179   18.0  23:43 (  0, 63)  

* 208P/McMillan

Now it is 19.1 mag (Oct. 6, Kunihiro Shima). It is observable at 18 mag in excellent condition in autumn.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Oct.  8   0 55.65    3  2.9   1.626   2.624   177   17.9  23:45 (  0, 58)  
Oct. 15   0 50.86    2 48.1   1.647   2.636   170   18.0  23:13 (  0, 58)  

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