Weekly Information about Bright Comets (2016 Dec. 10: South)

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Updated on December 10, 2016
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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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* 45P/Honda-Mrkos-Pajdusakova

Brightening very rapidly. Now it is very bright as 10.9 mag (Dec. 6, Katsumi Yoshimoto). It will approach to the earth down to 0.08 a.u. to the earth in mid February, and it is expected to be observable at 6 mag in good condition. It keeps very low in the evening sky for a while. It will be unobservable temporarily in January. Then it keeps observable in good condition after mid February.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Dec. 10  19 50.77  -23 37.3   1.135   0.690    37   10.8  20:52 ( 68, 10)  
Dec. 17  20 14.70  -22 25.2   1.007   0.611    35    9.3  20:57 ( 68,  7)  

* C/2016 U1 ( NEOWISE )

Brightening rapidly. Now it is very bright as 11.2 mag (Dec. 6, Katsumi Yoshimoto). It will approach to the sun down to 0.3 a.u. on Jan. 14. It may brighten up to 7 mag. In the Northern Hemisphere, it keeps observable in good condition in the morning sky until early January while the comet will be brightening. It is not observable at all in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Dec. 10  15  5.01   37  2.8   0.712   0.959    66   11.1   2:53 (243,-30)  
Dec. 17  16  2.83   25 54.2   0.719   0.815    54   10.4   2:54 (258,-31)  

* C/2015 V2 ( Johnson )

Now it is 12.0 mag (Dec. 5, Maik Meyer). 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)  
Dec. 10  13 45.36   44 23.2   2.817   2.847    81   11.5   2:53 (229,-20)  
Dec. 17  14  0.69   44 12.6   2.706   2.782    84   11.3   2:54 (228,-18)  

* C/2015 ER61 ( PanSTARRS )

Appearing in the morning sky. Now it is 14.0 mag (Nov. 22, Ken-ichi Kadota). 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)  
Dec. 10  14 21.99  -16 52.8   3.167   2.487    39   13.0   2:53 (286,  7)  
Dec. 17  14 35.46  -17 51.4   3.026   2.405    43   12.7   2:54 (285, 10)  

* 237P/LINEAR

It brightened very rapidly and became brighter than expected. Now it is very bright as 12.5 mag (Nov. 1, Chris Wyatt). It is not observable already in the Southern Hemisphere. It will be unobservable soon also in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Dec. 10  18 51.44  -15 22.9   2.886   2.041    25   13.5  20:52 ( 66, -6)  
Dec. 17  19  8.48  -14 42.4   2.926   2.054    22   13.8  20:57 ( 64,-10)  

* 29P/Schwassmann-Wachmann 1

It was observed as bright as 12-13 mag from late October to early November. Now it is fainter than 14.3 mag (Dec. 1, Chris Wyatt). It will be unobservable in mid December.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Dec. 10  19 52.48  -22 30.8   6.630   5.882    37   13.9  20:52 ( 69,  9)  
Dec. 17  19 57.88  -22 11.0   6.692   5.880    31   13.9  20:57 ( 66,  4)  

* 144P/Kushida

It brightened up to 11-12 mag in autumn. Now it is fading. But it is bright as 13.3 mag still now (Dec. 2, Seiichi Yoshida). It is getting higher gradually after this also in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Dec. 10  12 45.27   -8 50.9   2.005   1.811    64   14.0   2:53 (265, 22)  
Dec. 17  12 57.36  -10 12.7   1.981   1.856    68   14.2   2:54 (264, 26)  

* C/2014 S2 ( PanSTARRS )

It brightened up to 8-9 mag from last winter to spring. Now it is fading. It has already faded down to 16.4 mag (Dec. 2, Ken-ichi Kadota).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Dec. 10  13 10.60   -8 43.8   4.884   4.451    58   14.0   2:53 (269, 17)  
Dec. 17  13 12.72   -9 36.7   4.838   4.509    64   14.1   2:54 (266, 23)  

* 43P/Wolf-Harrington

It brightened up to 11-12 mag from summer to autumn. Now it is fading. But it is bright as 13.3 mag still now (Dec. 2, Seiichi Yoshida).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Dec. 10  11 53.25  -16 26.9   1.836   1.822    73   14.3   2:53 (265, 37)  
Dec. 17  12  2.59  -18 15.0   1.811   1.868    77   14.4   2:54 (264, 42)  

* 73P/Schwassmann-Wachmann 3

Now it is 16.5 mag (Nov. 29, Michael Jager). It will brighten up to 12 mag from winter to spring. In the Northern Hemisphere, it keeps observable while the comet is brightening gradually. But it will be unobservable in late February. In the Southern Hemisphere, it keeps unobservable until December. But it keeps observable for a long time after late December.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Dec. 10  13 59.33   -3 27.5   2.062   1.610    49   14.7   2:53 (271,  4)  
Dec. 17  14 19.97   -5 26.9   1.959   1.546    51   14.3   2:54 (272,  7)  

* 315P/2013 V6 ( LONEOS )

Now it is 15.2 mag (Nov. 17, Ken-ichi Kadota). 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. It keeps low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Dec. 10  11 24.12   24 44.8   2.110   2.421    96   14.4   2:53 (225, 14)  
Dec. 17  11 33.46   24 55.4   2.035   2.422   100   14.3   2:54 (221, 17)  

* C/2011 KP36 ( Spacewatch )

Now it is 14.2 mag (Nov. 22, 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)  
Dec. 10   0 35.60   -5 19.3   4.701   5.088   107   14.4  20:52 (138, 53)  
Dec. 17   0 37.44   -5 11.9   4.819   5.102   101   14.5  20:57 (129, 48)  

* 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)  
Dec. 10  16 43.60  -20 13.8   3.067   2.091     6   14.6   2:53 (310,-16)  
Dec. 17  16 59.97  -20 42.0   3.095   2.130     9   14.8   2:54 (308,-14)  

* C/2016 R2 ( PanSTARRS )

Now it is bright as 15.3 mag (Nov. 22, Thomas Lehmann). 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)  
Dec. 10   3  1.99  -39 46.6   5.189   5.614   110   15.1  21:43 (  0, 85)  
Dec. 17   2 57.73  -38 56.8   5.191   5.562   107   15.0  21:11 (  0, 86)  

* C/2015 TQ209 ( LINEAR )

Appearing in the morning sky in the Northern Hemisphere. Now it is fading. But it must be bright as 15 mag still now.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Dec. 10  14 56.80  -18 32.2   2.808   2.028    31   15.3   2:53 (292,  1)  
Dec. 17  15 11.93  -19 11.9   2.830   2.095    34   15.5   2:54 (291,  4)  

* C/2013 US10 ( Catalina )

It brightened up to 6 mag from last autumn to last winter. Now it is fading. It has already faded down to 15.2 mag (Nov. 2, Yuji Ohshima). 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)  
Dec. 10   3 42.60   55  7.8   4.350   5.179   144   15.3  22:24 (180,  0)  
Dec. 17   3 31.14   54 11.1   4.446   5.248   140   15.4  21:45 (180,  1)  

* 9P/Tempel 1

Now it is 14.4 mag (Oct. 22, Thomas Lehmann). It will be unobservable in December.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Dec. 10  20  5.10  -27 46.3   2.616   1.966    40   15.4  20:52 ( 66, 15)  
Dec. 17  20 23.68  -26 52.7   2.697   2.004    37   15.7  20:57 ( 65, 12)  

* 93P/Lovas 1

Now it is 16.0 mag (Nov. 3, Kunihiro Shima). It will brighten up to 15 mag in winter. But it will be getting lower gradually after this.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Dec. 10  22 35.44   -1 24.4   1.760   1.891    81   15.5  20:52 (112, 30)  
Dec. 17  22 46.33    0  3.6   1.800   1.862    77   15.4  20:57 (109, 25)  

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

Now it is 15.0 mag (Nov. 2, Kunihiro Shima). It will brighten up to 12-13 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)  
Dec. 10   0 40.58   20 59.0   3.223   3.792   118   15.5  20:52 (156, 30)  
Dec. 17   0 32.15   19 38.4   3.303   3.745   109   15.5  20:57 (145, 27)  

* 2P/Encke

Now it is 16.5 mag (Nov. 28, Michael Jager). 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)  
Dec. 10  22 52.66    4 19.3   1.398   1.683    88   16.2  20:52 (120, 29)  
Dec. 17  22 53.90    4  3.6   1.413   1.595    81   15.6  20:57 (114, 24)  

* C/2016 N4 ( MASTER )

Now it is 15.4 mag (Nov. 19, Ken-ichi Kadota). 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)  
Dec. 10  22 48.04   -8 42.6   4.164   4.142    81   15.8  20:52 (107, 37)  
Dec. 17  22 48.44   -7 37.0   4.239   4.103    75   15.8  20:57 (103, 30)  

* 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)  
Dec. 10  23 30.51   -7  9.9   0.859   1.332    92   15.8  20:52 (118, 44)  
Dec. 17  23 53.80   -3 49.9   0.903   1.356    91   16.1  20:57 (119, 40)  

* 56P/Slaughter-Burnham

Now it is 15.8 mag (Nov. 23, Katsumi Yoshimoto). 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)  
Dec. 10   4 14.90   34  0.7   1.780   2.739   163   15.8  22:56 (180, 21)  
Dec. 17   4 10.31   33 38.6   1.823   2.760   157   15.9  22:24 (180, 21)  

* 74P/Smirnova-Chernykh

Now it is 17.0 mag (Nov. 5, Kunihiro Shima). It will be observable at 16-17 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)  
Dec. 10   7 26.42   25 36.6   2.926   3.801   148   15.9   2:12 (180, 29)  
Dec. 17   7 22.65   25 55.9   2.870   3.793   156   15.9   1:40 (180, 29)  

* 65P/Gunn

It will brighten up to 14 mag from spring to summer in 2017. It locates somewhat low in the Northern Hemisphere. The perihelion distance increased from 2.4 a.u. to 2.9 a.u. in this apparition. So it will not be bright as before.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Dec. 10  14 44.74  -12  1.6   4.020   3.273    35   16.0   2:53 (285,  0)  
Dec. 17  14 54.03  -12 49.0   3.944   3.259    40   15.9   2:54 (283,  4)  

* C/2014 B1 ( Schwartz )

Now it is 15.6 mag (Nov. 19, Ken-ichi Kadota). 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)  
Dec. 10   9 22.99    1 34.1   9.224   9.678   114   16.0   2:53 (210, 50)  
Dec. 17   9 22.73    1 35.6   9.118   9.672   121   16.0   2:54 (199, 52)  

* 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 15.2 mag (Nov. 3, Kunihiro Shima). It keeps observable in good condition for a while.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Dec. 10  22  2.12  -13 56.7   3.202   3.004    69   16.2  20:52 ( 95, 31)  
Dec. 17  22 11.11  -13 14.2   3.320   3.034    64   16.4  20:57 ( 92, 25)  

* C/2015 V1 ( PanSTARRS )

Now it is 16.5 mag (Nov. 4, D. Buczynski). 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)  
Dec. 10   2 38.68   54 27.9   4.470   5.243   137   16.4  21:20 (180,  1)  
Dec. 17   2 27.46   52 51.4   4.485   5.211   133   16.4  20:57 (178,  2)  

* C/2016 R3 ( Borisov )

It approached to the Sun down to 0.45 a.u. on Oct. 10. It brightened up to 12.5-13.0 mag before the perihelion passage (Sept. 24, Michael Jager). After the perihelion passage, it was not detected, fainter than 14.0 mag on Nov. 16 (Michael Mattiazzo), fainter than 17 mag on Nov. 19 (Terry Lovejoy), fainter than 15.5 mag on Nov. 25 (Justin Tilbrook). It must have already disappeared. It will never be observable again in the Northern Hemisphere. In the Southern Hemisphere, it keeps extremely low after this. 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)  
Dec. 10  18 34.72  -45 44.2   2.154   1.375    28   16.5  20:52 ( 41, 11)  
Dec. 17  19  4.37  -47  8.0   2.272   1.493    29   17.0  20:57 ( 39, 11)  

* C/2013 V4 ( Catalina )

It brightened up to 15 mag in early 2016. Now it is fading. It has already faded down to 16.5 mag (Nov. 19, Ken-ichi Kadota). 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)  
Dec. 10  14 43.96   65 49.9   5.963   6.093    92   16.7   2:53 (210,-35)  
Dec. 17  14 53.51   65 56.4   5.961   6.120    94   16.7   2:54 (209,-33)  

* 188P/LINEAR-Mueller

It brightened rapidly. Now it is 16.7 mag (Oct. 15, Ken-ichi Kadota). 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)  
Dec. 10  22 58.96   -5  0.2   2.487   2.609    85   16.8  20:52 (113, 37)  
Dec. 17  23  6.20   -3 55.1   2.569   2.601    80   16.8  20:57 (109, 31)  

* C/2014 R3 ( PanSTARRS )

Now it is 16.9 mag (Nov. 25, Ken-ichi Kadota). It brightened rapidly, and became brighter than originally expected. It keeps 17 mag until 2017. In the Northern Hemisphere, it keeps observable in excellent condition for a long time. It is not observable in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Dec. 10  13 45.63   54 51.0   7.269   7.318    88   16.9   2:53 (219,-25)  
Dec. 17  13 46.45   55 12.5   7.208   7.323    92   16.9   2:54 (217,-22)  

* C/2016 A1 ( PanSTARRS )

Now it is 16.7 mag (Nov. 3, iTelescope Observatory, Siding Spring). It keeps 16 mag for a long time from 2017 to 2018.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Dec. 10   9 44.32  -11 40.1   5.599   5.917   104   17.0   2:53 (229, 58)  
Dec. 17   9 41.32  -11 19.3   5.464   5.895   111   16.9   2:54 (216, 62)  

* 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 fading. It is observable in excellent condition for a while 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)  
Dec. 10   3 56.75   55 50.4   1.098   1.984   144   16.9  22:37 (180, -1)  
Dec. 17   3 37.35   57 18.9   1.159   2.012   139   17.3  21:51 (180, -2)  

* 118P/Shoemaker-Levy 4

Now it is 17.3 mag (Nov. 7, Mt. Lemmon Survey). 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)  
Dec. 10  12 10.91   -0  0.9   2.442   2.395    75   17.0   2:53 (252, 24)  
Dec. 17  12 19.27   -0 33.0   2.381   2.423    80   17.0   2:54 (249, 28)  

* P/2015 TP200 ( LINEAR )

Now it is 17.4 mag (Nov. 25, Ken-ichi Kadota). 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)  
Dec. 10   7 16.05   34 18.4   2.510   3.398   149   17.1   2:01 (180, 21)  
Dec. 17   7 12.58   34 34.4   2.476   3.402   156   17.1   1:30 (180, 20)  

* C/2015 X7 ( ATLAS )

Now it is 17.9 mag (Nov. 2, Purple Mountain Observatory, XuYi Station). 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)  
Dec. 10  11 14.69   18 17.4   3.648   3.871    95   17.2   2:53 (228, 21)  
Dec. 17  11 18.69   19 31.2   3.562   3.890   102   17.2   2:54 (222, 23)  

* 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 17.3 mag (Nov. 4, 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)  
Dec. 10   4  6.48   62  4.8   8.910   9.679   139   17.2  22:48 (180, -7)  
Dec. 17   4  1.61   62  5.9   8.907   9.659   137   17.2  22:16 (180, -7)  

* 71P/Clark

It will brighten up to 10 mag in 2017 summer, and 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)  
Dec. 10  13 22.95   -0 58.5   2.727   2.373    58   17.5   2:53 (264, 10)  
Dec. 17  13 34.68   -2  5.6   2.614   2.334    62   17.2   2:54 (263, 14)  

* 94P/Russell 4

It will be observable at 17.5 mag in good condition from winter to spring.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Dec. 10  13 23.23   -3 17.6   2.615   2.250    57   17.4   2:53 (266, 11)  
Dec. 17  13 35.29   -4 24.8   2.551   2.257    61   17.4   2:54 (265, 15)  

* C/2014 A4 ( SONEAR )

It brightened up to 15 mag from late 2014 to early 2016. Now it is fading slowly. Now it is 17.1 mag (Nov. 5, Y. Sugiyama). In the Northern Hemisphere, it keeps observable in good condition for a long time, although it will be low temporarily in winter. It is not observable after this in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Dec. 10  21 17.91   32 48.2   5.690   5.629    81   17.5  20:52 (126, -6)  
Dec. 17  21 18.42   32 17.9   5.816   5.665    76   17.6  20:57 (122,-12)  

* P/2016 S1 ( PanSTARRS )

Now it is 17.3 mag (Nov. 9, L. Elenin). 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 never be observable again after this.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Dec. 10   2 54.97  -64  0.0   2.389   2.573    89   17.5  21:35 (  0, 61)  
Dec. 17   2 34.78  -64 39.1   2.440   2.551    85   17.5  20:57 (  2, 60)  

* 128P/Shoemaker-Holt 1

Now it is 17.0 mag (Nov. 10, Purple Mountain Observatory, XuYi Station). 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)  
Dec. 10   3  9.35   15  5.6   2.163   3.061   150   17.7  21:51 (180, 40)  
Dec. 17   3  6.85   14 50.2   2.214   3.059   143   17.7  21:21 (180, 40)  

* 136P/Mueller 3

Now it is 17.0 mag (Nov. 2, Mitsunori Tsumura). 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)  
Dec. 10   2  5.67   -0 16.7   2.425   3.149   129   17.7  20:52 (178, 55)  
Dec. 17   2  5.29    0  5.1   2.513   3.161   123   17.8  20:57 (164, 54)  

* (3200) Phaethon

It brightened up to 14.9 mag in September (Sept. 29, Sandor Szabo). In the Northern Hemisphere, it keeps observable in excellent condition, but it will be fading after this. It keeps locating very low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Dec. 10  23 23.26   22 21.7   1.381   1.852   101   17.7  20:52 (139, 20)  
Dec. 17  23 32.36   21 10.4   1.521   1.906    96   17.9  20:57 (134, 18)  

* 30P/Reinmuth 1

Now it is 17.5 mag (Oct. 24, D. Buczynski). It will brighten up to 16 mag in 2017 summer, but it is not observable around the high light. It is observable at 17-18 mag until March in the Southern Hemisphere, or until April in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Dec. 10   2  3.15    1  5.8   2.042   2.780   130   17.8  20:52 (177, 54)  
Dec. 17   2  1.17    1 22.2   2.083   2.744   122   17.8  20:57 (163, 52)  

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