Weekly Information about Bright Comets (2016 Dec. 31: North)

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Updated on December 31, 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 U1 ( NEOWISE )

It brightened rapidly. Now it is very bright as 8.1 mag (Dec. 30, Uwe Pilz). It will approach to the sun down to 0.3 a.u. on Jan. 14. It is not observable at all 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. 31  17 24.43    2 18.5   0.868   0.516    31    7.8   5:37 (275, 12)  
Jan.  7  17 58.82   -8 53.5   1.001   0.382    22    6.8   5:38 (284,  4)  

* 45P/Honda-Mrkos-Pajdusakova

It brightened very rapidly as predicted. Now it is very bright as 7.2 mag (Dec. 29, Marco Goiato). 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 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. 31  20 56.91  -19  7.1   0.712   0.533    31    7.2  18:28 ( 59, 10)  
Jan.  7  21  8.86  -17 13.6   0.564   0.552    27    6.9  18:33 ( 63,  7)  

* C/2015 V2 ( Johnson )

Now it is 11.5 mag (Dec. 30, Uwe Pilz). 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. 31  14 30.97   44  2.0   2.493   2.651    88   10.9   5:37 (241, 63)  
Jan.  7  14 45.76   44  2.6   2.391   2.587    90   10.7   5:38 (240, 65)  

* C/2015 ER61 ( PanSTARRS )

Now it is 13.0 mag (Dec. 29, Chris Wyatt). 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. 31  15  4.67  -19 45.0   2.736   2.239    50   12.2   5:37 (317, 22)  
Jan.  7  15 20.60  -20 38.6   2.590   2.156    53   11.9   5:38 (320, 23)  

* 73P/Schwassmann-Wachmann 3

Now it is 15.5 mag (Dec. 6, Kunihiro Shima). 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 observable for a long time after this.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Dec. 31  15  5.68   -9 33.5   1.769   1.418    53   13.4   5:37 (310, 30)  
Jan.  7  15 31.12  -11 38.1   1.684   1.356    53   13.2   5:38 (312, 29)  

* 2P/Encke

Already bright as 12.0 mag (Dec. 21, Thomas Lehmann). 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. 31  23  1.17    4  5.7   1.422   1.407    68   14.3  18:28 ( 51, 47)  
Jan.  7  23  6.93    4 22.2   1.412   1.308    63   13.5  18:33 ( 58, 43)  

* 29P/Schwassmann-Wachmann 1

It was observed as bright as 12-13 mag from late October to early November. Now it is not observable. It will appear in the morning sky in March.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Dec. 31  20  9.16  -21 28.6   6.788   5.876    20   13.9  18:28 ( 64, -1)  
Jan.  7  20 14.95  -21  6.0   6.821   5.875    14   13.9  18:33 ( 68, -5)  

* 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, 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. 31  11 49.28   25 38.6   1.897   2.428   110   14.2   5:11 (  0, 81)  
Jan.  7  11 55.51   26 11.5   1.834   2.433   116   14.2   4:49 (  0, 81)  

* 237P/LINEAR

It brightened very rapidly up to 12 mag in autumn, brighter than originally expected. It will not be observable after this.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Dec. 31  19 41.94  -13  3.5   3.002   2.085    17   14.3  18:28 ( 75, -1)  
Jan.  7  19 58.30  -12  5.7   3.037   2.103    15   14.6  18:33 ( 78, -3)  

* 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. 31   0 42.66   -4 45.5   5.064   5.132    88   14.6  18:28 ( 10, 50)  
Jan.  7   0 45.99   -4 27.3   5.187   5.148    82   14.7  18:33 ( 21, 49)  

* 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. 31  13 18.79  -12 35.2   1.924   1.948    76   14.7   5:37 (340, 40)  
Jan.  7  13 27.96  -13 35.5   1.892   1.995    81   14.9   5:38 (346, 40)  

* 43P/Wolf-Harrington

It brightened up to 11-12 mag from summer to autumn. Now it is fading. But it is bright as 12.4 mag still now (Dec. 29, Jakub Cerny).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Dec. 31  12 17.77  -21 29.9   1.755   1.963    86   14.8   5:37 (359, 33)  
Jan.  7  12 23.41  -22 55.4   1.724   2.011    91   14.9   5:17 (  0, 32)  

* 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. 31   2 51.10  -36 54.8   5.213   5.456    99   15.0  20:10 (  0, 18)  
Jan.  7   2 48.86  -35 44.6   5.231   5.404    94   14.9  19:40 (  0, 19)  

* 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. 31  17 31.64  -21 18.2   3.138   2.211    16   15.0   5:37 (294, -4)  
Jan.  7  17 46.85  -21 26.9   3.152   2.251    19   15.1   5:38 (296, -1)  

* 93P/Lovas 1

Now it is 15.4 mag (Dec. 2, Kunihiro Shima). It keeps 15 mag until spring. But it will be getting lower gradually after this.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Dec. 31  23 10.86    3 15.8   1.879   1.809    70   15.3  18:28 ( 47, 48)  
Jan.  7  23 24.40    4 59.3   1.916   1.786    67   15.2  18:33 ( 54, 47)  

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

Now it is 15.0 mag (Dec. 6, Kunihiro Shima). It will brighten up to 12-13 mag and will be observable in good condition in 2017 summer. In this winter, it is observable until mid January in the Southern Hemisphere, or until the end of February in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Dec. 31   0 19.64   17 20.1   3.486   3.654    91   15.5  18:28 ( 35, 69)  
Jan.  7   0 15.33   16 23.8   3.583   3.609    83   15.5  18:33 ( 52, 63)  

* 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. 31   3 13.19   52  4.3   4.686   5.383   131   15.7  20:32 (180, 73)  
Jan.  7   3  6.69   50 59.4   4.826   5.451   125   15.8  19:58 (180, 74)  

* 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. 31  15 12.28  -14 16.6   3.774   3.231    50   15.8   5:37 (312, 25)  
Jan.  7  15 21.16  -14 56.8   3.681   3.218    54   15.7   5:38 (316, 28)  

* C/2016 N4 ( MASTER )

Now it is 15.8 mag (Dec. 3, 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)  
Dec. 31  22 51.25   -5 19.6   4.381   4.025    62   15.8  18:28 ( 46, 38)  
Jan.  7  22 53.54   -4  7.9   4.444   3.987    56   15.7  18:33 ( 54, 35)  

* 74P/Smirnova-Chernykh

Now it is 16.8 mag (Dec. 1, 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. 31   7 13.25   26 34.1   2.801   3.777   171   15.8   0:36 (  0, 82)  
Jan.  7   7  8.03   26 51.4   2.789   3.770   175   15.8   0:03 (  0, 82)  

* 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. 31  15 39.95  -20 10.3   2.861   2.231    42   15.8   5:37 (310, 17)  
Jan.  7  15 52.78  -20 29.8   2.868   2.300    46   15.9   5:38 (314, 19)  

* C/2014 W2 ( PanSTARRS )

It kept bright 12 mag for a long time from autum in 2015 to summer in 2016. Now it is fading. It is appearing in the morning sky in the Northern Hemispehre. It will be observable in late January also in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Dec. 31  16 56.91   -2 27.5   4.793   4.000    32   15.8   5:37 (284, 14)  
Jan.  7  17  1.80   -3  8.0   4.791   4.049    37   15.9   5:38 (288, 19)  

* C/2014 B1 ( Schwartz )

Now it is 15.7 mag (Dec. 15, Kunihiro Shima). 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. 31   9 21.35    1 45.2   8.931   9.660   135   16.0   2:43 (  0, 57)  
Jan.  7   9 20.27    1 53.4   8.854   9.655   142   15.9   2:15 (  0, 57)  

* 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. 31   4  4.33   32 47.2   1.948   2.805   144   16.2  21:23 (  0, 88)  
Jan.  7   4  3.26   32 21.3   2.026   2.828   137   16.4  20:55 (  0, 87)  

* 41P/Tuttle-Giacobini-Kresak

Now it is 18.8 mag (Dec. 8, Mt. Lemmon Survey). It will approach to the earth down to 0.14 a.u. from March to April. It is expected to brighten up to 5-6 mag. It may brighten furthermore in outburst. In the Northern Hemisphere, it keeps observable in excellent condition. In the Southern Hemisphere, it will not be observable for about one month around the highlight. But it keeps observable in good condition except for that period.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Dec. 31   9 18.00    7 23.9   0.791   1.665   139   17.0   2:40 (  0, 62)  
Jan.  7   9 22.39    7 28.2   0.696   1.605   145   16.4   2:17 (  0, 62)  

* C/2015 V1 ( PanSTARRS )

Now it is 16.6 mag (Dec. 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)  
Dec. 31   2 10.21   49 26.0   4.564   5.148   121   16.4  19:29 (180, 76)  
Jan.  7   2  4.09   47 43.0   4.624   5.117   114   16.4  18:56 (180, 77)  

* 71P/Clark

It will brighten up to 10 mag in 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. 31  13 58.32   -4 15.1   2.383   2.257    70   16.8   5:37 (323, 44)  
Jan.  7  14 10.20   -5 17.1   2.267   2.219    74   16.5   5:38 (329, 45)  

* C/2014 OE4 ( PanSTARRS )

Now it is 15.8 mag (Sept. 9, Alexander Baransky). It keeps 16.5 mag from 2016 to 2017. In the Northern Hemisphere, it keeps observable in good condition for a long time, although it becomes low temporarily in December. In the Southern Hemisphere, it will never be observable again.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Dec. 31  17 49.05   35 12.5   6.686   6.246    59   16.6   5:37 (243, 24)  
Jan.  7  17 55.44   35 56.5   6.663   6.247    61   16.6   5:38 (244, 29)  

* 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. 31   9 33.36  -10 19.9   5.217   5.852   126   16.8   2:55 (  0, 45)  
Jan.  7   9 28.45   -9 40.2   5.109   5.832   133   16.7   2:23 (  0, 45)  

* C/2013 V4 ( Catalina )

It brightened up to 15 mag in early 2016. Now it is fading. It has already faded down to 16.3 mag (Dec. 6, Kunihiro Shima). 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. 31  15 10.33   66 23.4   5.963   6.174    97   16.8   5:37 (205, 50)  
Jan.  7  15 17.45   66 43.6   5.968   6.202    99   16.8   5:38 (203, 51)  

* 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. 31   0 39.05    2 34.0   1.011   1.416    90   16.8  18:28 ( 13, 57)  
Jan.  7   1  0.95    5 31.9   1.076   1.452    89   17.2  18:33 ( 20, 59)  

* 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. 31  13 46.13   56  9.5   7.090   7.334   100   16.9   5:37 (209, 64)  
Jan.  7  13 44.80   56 43.8   7.035   7.340   104   16.9   5:38 (201, 66)  

* 188P/LINEAR-Mueller

It brightened rapidly up to 16.3 mag in autumn (Sept. 7, Alexander Baransky). Now it is 17.2 mag (Dec. 8, Kunihiro Shima). It is observable until mid January in the Southern Hemisphere, or until March in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Dec. 31  23 22.55   -1 35.2   2.728   2.586    71   16.9  18:28 ( 40, 46)  
Jan.  7  23 31.54   -0 20.8   2.806   2.581    66   17.0  18:33 ( 48, 44)  

* 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. 31  13 15.26  -11 15.1   4.730   4.625    77   17.0   5:37 (340, 42)  
Jan.  7  13 15.58  -12  0.2   4.670   4.683    84   17.1   5:38 (350, 42)  

* 118P/Shoemaker-Levy 4

Now it is 17.3 mag (Nov. 7, Mt. Lemmon Survey). It is observable at 17 mag in good condition in winter.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Dec. 31  12 33.50   -1 17.1   2.255   2.480    91   17.1   5:37 (352, 53)  
Jan.  7  12 39.20   -1 27.9   2.191   2.510    97   17.1   5:33 (  0, 53)  

* C/2015 X7 ( ATLAS )

Now it is 17.8 mag (Dec. 3, Kunihiro Shima). 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. 31  11 24.58   22 23.4   3.408   3.931   115   17.1   4:46 (  0, 77)  
Jan.  7  11 26.35   24  1.0   3.342   3.953   122   17.1   4:20 (  0, 79)  

* 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. 31   7  3.79   34 56.1   2.447   3.413   167   17.1   0:27 (  0, 90)  
Jan.  7   6 59.00   34 60.0   2.454   3.420   167   17.1  23:50 (  0, 90)  

* 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 in September (Sept. 28, Chris Wyatt). Now it is appearing in the morning sky. In the Southern Hemisphee, it keeps observable in excellent condition after this. It keeps low in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Dec. 31  15  6.96  -32 27.0   4.147   3.563    47   17.1   5:37 (324, 11)  
Jan.  7  15  7.13  -32 53.2   4.116   3.634    54   17.3   5:38 (330, 14)  

* 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. 31   3 52.93   61 57.1   8.937   9.621   131   17.2  21:12 (180, 63)  
Jan.  7   3 49.38   61 48.2   8.968   9.602   127   17.2  20:41 (180, 63)  

* 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. 31  13 58.30   -6 26.8   2.418   2.274    69   17.4   5:37 (325, 42)  
Jan.  7  14  9.12   -7 20.9   2.349   2.284    74   17.4   5:38 (331, 43)  

* 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. 31   2  1.74  -64 48.0   2.539   2.512    77   17.5  19:20 (  0,-10)  
Jan.  7   1 49.97  -64 30.2   2.584   2.495    73   17.5  18:41 (  0, -9)  

* 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. 31   2  0.92    2 18.7   2.183   2.672   109   17.7  19:20 (  0, 57)  
Jan.  7   2  2.66    2 57.4   2.238   2.637   102   17.7  18:55 (  0, 58)  

* 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. 31   3  4.85   14 34.8   2.347   3.056   128   17.8  20:24 (  0, 70)  
Jan.  7   3  5.47   14 35.1   2.426   3.056   121   17.9  19:57 (  0, 70)  

* 330P/2015 U1 ( Catalina )

It is observable at 18 mag in good condition from January to March.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Dec. 31  10 53.18   -4 39.1   2.574   3.089   112   18.0   4:15 (  0, 50)  
Jan.  7  10 53.61   -5 32.6   2.505   3.105   119   17.9   3:48 (  0, 49)  

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