Weekly Information about Bright Comets (2017 Nov. 4: North)

Japanese version
Home page
Updated on November 7, 2017
Last week South Next week

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.

---------------------------------------------------------------------

* 96P/Machholz 1

It brightened up to 11.6 mag in mid October (Oct. 13, Chris Wyatt). It passed the perihelion on Oct. 27. It will not be observable after this.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov.  4  14 56.17   -5 10.3   1.226   0.318    11    7.2  18:29 ( 89, -8)  
Nov. 11  15 41.92   -7 33.2   1.438   0.528    13   10.2  18:24 ( 84, -5)  

* C/2017 O1 ( ASASSN )

Now it is bright as 9.2 mag (Nov. 2, Maik Meyer). In the Northern Hemisphere, it stays observable in excellent condition for a long time. In the Southern Hemisphere, it will never be observable again after this. It started fading before the peirhelion passage.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov.  4   4 54.91   71 45.9   0.765   1.525   119    8.8   2:04 (180, 53)  
Nov. 11   4 50.89   77 11.7   0.804   1.546   118    9.1   1:33 (180, 48)  

* 24P/Schaumasse

Now it is bright as 10.6 mag (Oct. 23, Juan Jose Gonzalez). It stays 10 mag until December. It is observable in good condition in the Northern Hemisphere. It locates very low for a long time in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov.  4  11 22.41   11 32.4   1.477   1.218    54   10.7   4:57 (283, 37)  
Nov. 11  11 49.98    9 24.5   1.465   1.209    54   10.5   5:03 (286, 37)  

* 62P/Tsuchinshan 1

Now it is very bright as 10.2 mag (Oct. 23, Juan Jose Gonzalez). It stays 11 mag until winter. It is observable in good condition in the Northern Hemisphere. It locates low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov.  4  10 24.01   13 42.6   1.398   1.391    68   11.3   4:57 (292, 49)  
Nov. 11  10 47.63   12 22.8   1.365   1.385    69   11.2   5:03 (296, 50)  

* C/2015 V2 ( Johnson )

It brightened up to 7.1 mag from May to June (June 21, Juan Jose Gonzalez). Now it is fading. It has already faded down to 12.2 mag (Oct. 19, Chris Wyatt). In the Southern Hemisphere, it stays observable for a long time after this. It will never be observable again in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov.  4  18  4.15  -56 36.5   2.880   2.480    56   11.8  18:29 ( 25,-11)  
Nov. 11  18 26.74  -56 55.5   2.987   2.544    54   12.0  18:24 ( 25,-11)  

* C/2016 R2 ( PanSTARRS )

Now it is 12.8 mag (Oct. 30, Chris Wyatt). It will stay bright as 11 mag for a long time from winter to next spring. In the Southern Hemisphere, it stays observable in good condition until next February. In the Northern Hemispehre, it stays observable for a long time after this until the comet fades out.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov.  4   5 29.20    0 55.4   2.471   3.249   135   12.1   2:37 (  0, 56)  
Nov. 11   5 24.25    1 53.6   2.366   3.207   142   11.9   2:05 (  0, 57)  

* 29P/Schwassmann-Wachmann 1

Now it is very bright as 11.5 mag (Oct. 22, Juan Jose Gonzalez).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov.  4  21  6.79  -14 24.6   5.668   5.811    93   13.5  18:29 (  5, 41)  
Nov. 11  21  8.75  -14 13.4   5.780   5.809    86   13.5  18:24 ( 12, 40)  

* 240P/NEAT

It brightened very rapidly from July to August. Now it is very bright as 14.1 mag (Sept. 27, Chris Wyatt). It is observable in excellent condition in the Southern Hemisphere. It stays low for a while in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov.  4  23 53.80  -33 31.0   1.971   2.585   117   13.8  20:58 (  0, 22)  
Nov. 11  23 52.22  -32 11.1   2.011   2.558   112   13.8  20:29 (  0, 23)  

* 71P/Clark

It brightened up to 10 mag from spring to summer. Now it is fading. It has already faded down to 12.7 mag (Oct. 26, Seiichi Yoshida). It is observable in excellent condition in the Southern Hemisphere. It locates low in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov.  4  20 34.61  -29  7.2   1.839   1.969    82   13.8  18:29 ( 12, 25)  
Nov. 11  20 50.11  -27 45.9   1.942   2.004    78   14.0  18:24 ( 14, 26)  

* C/2016 N6 ( PanSTARRS )

Now it is 13.7 mag (Sept. 22, Sandor Szabo). It is expected to brighten up to 12 mag from 2018 to 2019. In the Northern Hemisphere, it stays observable in good condition while the comet will be brightening gradually. In the Southern Hemisphere, it is not observable until 2018 October.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov.  4  15  8.56   47 11.1   4.077   3.731    62   14.6  18:29 (133, 23)  
Nov. 11  15 12.49   47  8.5   4.000   3.684    64   14.4  18:24 (134, 20)  

* C/2016 M1 ( PanSTARRS )

Now it is 14.4 mag (Oct. 9, Yasukazu Ikari). It is expected to brighten up to 10 mag in summer in 2018. In the Northern Hemisphere, it stays observable until 2018 summer while the comet will be brightening. In the Southern Hemisphere, it is hardly observable in 2017, but it will be observable in good condition in 2018.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov.  4  17 25.55   19 34.9   4.252   3.760    54   14.5  18:29 ( 90, 36)  
Nov. 11  17 30.86   17 52.0   4.256   3.704    50   14.5  18:24 ( 91, 31)  

* C/2015 ER61 ( PanSTARRS )

It brightened up to 6.2 mag in April (Apr. 7, Juan Jose Gonzalez). Now it is fading rapidly. It has already faded down to 13.6 mag (Oct. 17, Thomas Lehmann). It stays observable for a long time after this.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov.  4   3 17.72   19 25.9   1.822   2.803   169   14.5   0:26 (  0, 75)  
Nov. 11   3 10.01   18 42.5   1.893   2.883   178   14.8  23:46 (  0, 74)  

* 217P/LINEAR

It brightened up to 12.2 mag in August (Aug. 21, Juan Jose Gonzalez). It is fading now. It has already faded down to 14.0 mag (Oct. 1, Michael Jager).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov.  4   8 15.28    9 55.0   1.398   1.818    97   14.6   4:57 (346, 64)  
Nov. 11   8 19.36    9 58.4   1.376   1.874   103   14.8   4:59 (  0, 65)  

* C/2015 O1 ( PanSTARRS )

Now it is 13.6 mag (Oct. 23, T. Ikemura, H. Sato). It will be observable at 14 mag for a long time from 2017 to 2018. In the Southern Hemisphere, it will be hardly observable after this. It will be extremely low from November to December in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov.  4  16 11.64   18 54.0   4.536   3.849    41   14.7  18:29 ( 99, 20)  
Nov. 11  16 13.83   18 57.7   4.538   3.834    40   14.7  18:24 (102, 16)  

* C/2015 V1 ( PanSTARRS )

Now it is 14.4 mag (Oct. 27, Catalina Sky Survey). It stays observable at 15-16 mag for a long time from 2017 to 2018.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov.  4   0 54.06   12 20.0   3.363   4.282   155   15.0  21:58 (  0, 67)  
Nov. 11   0 45.07   10 18.1   3.425   4.278   145   15.0  21:22 (  0, 65)  

* 145P/Shoemaker-Levy 5

Now it is 15.0 mag (Oct. 30, D. Buczynski). It brightened rapidly. It is observable at 15 mag in autumn in good condition in the Northern Hemisphere. It locates low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov.  4   5 42.04   35 31.9   1.171   1.991   133   15.0   2:50 (180, 90)  
Nov. 11   5 41.42   36 41.9   1.146   2.011   140   15.0   2:22 (180, 88)  

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

Now it is 15.9 mag (Oct. 9, T. Ikemura, H. Sato). It will be fading after this.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov.  4  19  6.65  -15 47.4   3.084   2.809    64   15.1  18:29 ( 39, 30)  
Nov. 11  19  5.06  -16 29.8   3.237   2.828    57   15.2  18:24 ( 44, 26)  

* C/2016 N4 ( MASTER )

Now it is 13.7 mag (Oct. 13, Juan Jose Gonzalez). In the Northern Hemisphere, it stays 15 mag until winter, and it is observable in excellent condition. It is not observable at all after this in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov.  4  19 55.64   65 59.1   2.911   3.233    99   15.3  18:29 (164, 56)  
Nov. 11  19 49.90   64 53.3   2.952   3.243    98   15.4  18:24 (159, 55)  

* C/2011 KP36 ( Spacewatch )

Now it is 15.6 mag (Oct. 25, Yasukazu Ikari). It stays observable at 16 mag unil the end of 2017.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov.  4   3 29.56   -0 20.3   5.207   6.146   159   15.5   0:38 (  0, 55)  
Nov. 11   3 27.01   -0 38.5   5.229   6.175   161   15.5   0:08 (  0, 54)  

* C/2017 K6 ( Jacques )

Now it is 14.7 mag (Oct. 30, Chris Wyatt). It stays 15 mag until winter. In the Southern Hemisphere, it stays observable in excellent condition until spring in 2018. In the Northern Hemisphere, it stays unobservable until 2018.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov.  4   1 43.00  -75 58.1   1.914   2.131    88   15.7  22:46 (  0,-21)  
Nov. 11   1 33.27  -73 32.2   1.892   2.103    87   15.6  22:09 (  0,-18)  

* C/2017 T1 ( Heinze )

Now it is 16.6 mag (Oct. 11, Catalina Sky Survey). It will approach to Earth down to 0.2 a.u., and to Sun down to 0.6 a.u., and it is expected to brighten up to 9 mag from winter to spring. In the Northern Hemisphre, it stays observable in good condition until January, but it will be extremely low after that. In the Southern Hemisphere, it is not observable from January to mid March, but it stays observable in good condition except for that period.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov.  4   8 44.48   -4 11.7   1.893   2.090    86   16.1   4:57 (339, 49)  
Nov. 11   8 48.87   -3 57.7   1.683   1.989    92   15.6   5:03 (350, 51)  

* 65P/Gunn

Now it is 17.1 mag (Oct. 3, ATLAS-HKO, Haleakala). It will be unobservable in late October in the Northerm Hemisphere, or in late November in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov.  4  17 39.63  -27 57.1   3.540   2.911    44   15.7  18:29 ( 47,  8)  
Nov. 11  17 51.82  -28  5.8   3.603   2.913    39   15.7  18:24 ( 49,  6)  

* (3200) Phaethon

Now it is 16.4 mag (Oct. 29, Katsumi Yoshimoto). It will approach to Earth down to 0.07 a.u. in mid December, and it will brighten up to 10 mag. In the Northern Hemisphere, it stays observable in excellent condition until mid December. In the Southern Hemisphere, it stays low.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov.  4   7  2.86   34 39.9   0.850   1.577   117   16.3   4:10 (  0, 90)  
Nov. 11   7  5.74   35 12.8   0.704   1.501   123   15.8   3:46 (180, 90)  

* C/2017 K4 ( ATLAS )

Now it is 15.0 mag (Oct. 10, T. Ikemura, H. Sato). It stays 16 mag for a long time until summer in 2018. In the Southern Hemisphere, it stays observable in excellent condition until autumn. It locates low in the Northern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov.  4  18 29.47  -24 30.5   3.169   2.727    55   15.9  18:29 ( 41, 18)  
Nov. 11  18 41.95  -23 47.9   3.222   2.711    51   15.9  18:24 ( 43, 17)  

* 47P/Ashbrook-Jackson

Now it is 15.7 mag (Oct. 30, Catalina Sky Survey). It will be fading after this, and it will be fainter than 18 mag in March.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov.  4   1  3.24   17 38.1   1.999   2.940   157   15.9  22:07 (  0, 73)  
Nov. 11   0 59.38   17 28.2   2.051   2.951   150   16.0  21:36 (  0, 73)  

* 74P/Smirnova-Chernykh

Now it is 16.7 mag (Nov. 2, A. Diepvens). It will be observable at 15 mag in good condition from winter to spring.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov.  4  11 11.70   11 21.5   3.986   3.549    57   16.0   4:57 (285, 39)  
Nov. 11  11 18.87   10 47.0   3.896   3.547    62   16.0   5:03 (291, 43)  

* C/2014 B1 ( Schwartz )

Appearing in the morning sky. It stays 16-17 mag for a long time from 2016 to 2019. It stays near by the equator.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov.  4  10 25.51    4 11.7   9.937   9.561    65   16.1   4:57 (302, 43)  
Nov. 11  10 27.63    4  5.1   9.831   9.563    71   16.1   5:03 (310, 48)  

* C/2016 A1 ( PanSTARRS )

Now it is 16.4 mag (Oct. 26, Purple Mountain Observatory, XuYi Station). It stays 16 mag for a long time from 2017 to 2018. It is observable in excellent condition in the Northern Hemisphere. It locates very low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov.  4   9 17.66   23  5.2   5.292   5.330    86   16.4   4:57 (296, 67)  
Nov. 11   9 17.04   24  2.8   5.164   5.329    94   16.3   5:03 (310, 74)  

* C/2017 S6 ( Catalina )

Now it is 17.1 mag (Oct. 27, Yuji Ohshima). It stays observable at 16 mag for a long time until summer in 2018. It is observable in good condition in the Northern Hemisphere in 2017, and in the Southern Hemisphere in 2018.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov.  4   5 16.34   62 58.7   1.454   2.178   124   16.7   2:27 (180, 62)  
Nov. 11   4  3.57   65 26.6   1.332   2.116   130   16.4   0:49 (180, 60)  

* 355P/2017 M2 ( LINEAR-NEAT )

Now it is 15.9 mag (Nov. 2, ATLAS-HKO, Haleakala). Return of a new periodic comet which brightened up to 13 mag in 2004. It will be observable in excellent condition in autumn. It was expected to brighten up to 14 mag, if the comet is as bright as when it was discovered. But actually, it is much fainter than expected.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov.  4   2 28.83    9 12.0   0.739   1.729   173   16.4  23:33 (  0, 64)  
Nov. 11   2 23.68   10 33.8   0.757   1.738   168   16.5  23:00 (  0, 66)  

* C/2017 M4 ( ATLAS )

Now it is 16.4 mag (Oct. 26, D. Buczynski). It is expected to brighten up to 13-14 mag from 2018 to 2019. In the Northern Hemisphere, it stays observable in good condition for a long time. In the Southern Hemisphere, it is not observable until summer in 2018.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov.  4  18 28.95   49 55.8   5.184   5.154    82   16.7  18:29 (129, 55)  
Nov. 11  18 31.51   48 20.3   5.183   5.109    80   16.7  18:24 (126, 52)  

* 213P/Van Ness

It brightened up to 13.5 mag in July (July 5, Chris Wyatt). But it is fading after that, even before the perihelion passage. It has already faded down to 16.8 mag (Oct. 29, ATLAS-MLO, Mauna Loa). 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)  
Nov.  4  20 21.21  -15  9.9   1.881   2.008    82   16.7  18:29 ( 19, 38)  
Nov. 11  20 34.22  -14  2.8   1.960   2.018    78   16.9  18:24 ( 22, 38)  

* C/2016 T3 ( PanSTARRS )

Now it is 16.6 mag (Oct. 24, Catalina Sky Survey). It will be observable at 16.5 mag in good condition in winter.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov.  4   9 29.72    2 10.2   2.750   2.718    77   16.7   4:57 (319, 50)  
Nov. 11   9 36.69    0 25.0   2.684   2.735    82   16.7   5:03 (330, 51)  

* 90P/Gehrels 1

Now it is 16.9 mag (Nov. 2, A. Diepvensy). In the Northern Hemisphere, it will be observable at 17 mag in excellent 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)  
Nov.  4   5 44.33   34 32.9   2.361   3.130   133   16.8   2:52 (  0, 90)  
Nov. 11   5 42.38   34 58.8   2.316   3.145   140   16.7   2:23 (  0, 90)  

* C/2014 OE4 ( PanSTARRS )

Now it is 16.1 mag (Oct. 29, N. James). It stays 16 mag from 2016 to 2017. In the Northern Hemisphere, it stays observable in good condition for a long time. In the Southern Hemisphere, it will never be observable again.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov.  4  18 23.90   59 48.7   6.598   6.636    87   16.8  18:29 (145, 52)  
Nov. 11  18 31.86   59 28.0   6.620   6.652    87   16.8  18:24 (143, 50)  

* C/2010 U3 ( Boattini )

Now it is 16.7 mag (Oct. 25, Ken-ichi Kadota). It will pass the perihelion in 2019. However, it has not been brightening since the discovery in 2010. It is observable in good conditioin in the Northern Hemisphere. It is not observable for a long time in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov.  4   7  4.42   72 37.1   8.496   8.906   111   16.9   4:13 (180, 52)  
Nov. 11   7  3.61   73 18.9   8.428   8.893   115   16.9   3:45 (180, 52)  

* 103P/Hartley 2

Now it is 18.5 mag (Oct. 21, Jonathan L. Tuten, D. Breedlove, B. Lutkenhoner). Appearing in the morning sky. It will be fading slowly after this.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov.  4  11 18.98   -6 33.9   3.048   2.513    49   16.9   4:57 (300, 26)  
Nov. 11  11 26.96   -7 36.8   3.028   2.570    53   17.0   5:03 (305, 29)  

* 352P/2017 L1 ( Skiff )

First return of a new periodic comet discovered in 2000. Now it is 15.9 mag (Oct. 29, Catalina Sky Survey). Although it has been brightening even after the perihelion passage, it will be fading after this.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov.  4   0 28.63   -3 20.2   1.919   2.778   143   16.9  21:33 (  0, 52)  
Nov. 11   0 26.20   -2 25.0   2.001   2.802   136   17.2  21:03 (  0, 53)  

* (944) Hidalgo

Now it is 16.6 mag (Sept. 16, P. Camilleri, H. Williams). It will brighten up to 14 mag from autumn to winter in 2018, and it will be observable in excellent condition in the Northern Hemisphere. In 2017, it is observable at 17 mag in excellent condition in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov.  4  22 59.93  -41  8.0   3.324   3.701   104   17.1  20:05 (  0, 14)  
Nov. 11  22 57.55  -39 45.0   3.369   3.658    99   17.1  19:35 (  0, 15)  

* 188P/LINEAR-Mueller

Now it is 18.1 mag (Oct. 25, D. Buczynski). It is observable in good condition in the Northern Hemisphere. It locates very low in the Southern Hemisphere.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov.  4   7 27.58   34 43.4   2.569   3.089   112   17.1   4:35 (  0, 90)  
Nov. 11   7 28.76   35  5.7   2.508   3.113   119   17.1   4:09 (180, 90)  

* C/2017 T3 ( ATLAS )

Now it is 17.3 mag (Oct. 22, C. Rinner, F. Kugel). It will brighten up to 9 mag in 2018 summer. However, it is hardly observable when it is bright. In the Northern Hemisphere, it is observable only until March when it brightens up to 14 mag. In the Southern Hemisphere, it is observable from July to September in 2018, but it locates in extremely low.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov.  4  21 27.77   75 55.7   3.368   3.793   107   17.4  18:32 (180, 49)  
Nov. 11  21 31.03   73 53.0   3.281   3.716   108   17.3  18:24 (178, 51)  

* C/2015 XY1 ( Lemmon )

Now it is 16.6 mag (Oct. 26, Yuji Ohshima). It stays observable at 18 mag for a long time until 2019.

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov.  4   6 56.57   19 49.7   7.485   8.002   118   17.9   4:04 (  0, 75)  
Nov. 11   6 52.66   19 37.8   7.373   7.996   126   17.9   3:33 (  0, 75)  

* A/2017 U1

Possible first interstellar object in the history. It approached to Sun down to 0.25 a.u. on Sept. 9. Now it is fading rapidly. It was 19.0 mag in mid October (Oct. 14, Catalina Sky Survey). But it has already fade down to 22.4 mag (Oct. 30, W. H. Ryan, E. V. Ryan).

Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1   Best Time(A, h)  
Nov.  4  23 31.42    5 37.7   0.740   1.595   133   23.4  20:35 (  0, 61)  
Nov. 11  23 21.77    6  1.0   0.993   1.755   124   24.2  19:59 (  0, 61)  

---------------------------------------------------------------------

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