C/2008 J4 (McNaught)

T 2008 June 19.50858 TT                                 Nakano

q   0.4479502            (2000.0)            P               Q

                   Peri.   93.39341     +0.02156754     -0.33151041

                   Node   289.24769     -0.33227040     +0.88742052

e   1.0            Incl.   87.50175     +0.94293755     +0.32028996

From 22 observations 2008 May 10-25.

Residuals in seconds of arc 

2008/                     080512 F85  0.7-  0.7-    080519 J24  3.1+  0.7-  

080510 E12  1.5+  2.7+    080512 E12 (5.6-  7.2-)   080520 349  0.2+  0.1-  

080510 E12  0.6-  2.9+    080513 F85  3.7-  1.8-    080520 349  0.0   0.3-  

080510 E12  1.2-  3.1+    080513 F85  1.6-  3.5-    080520 349  0.9-  0.7+  

080510 E12  0.7+  2.4+    080518 J24  3.0+  0.3+    080520 349  0.1-  0.2+  

080511 E12 (5.7-  2.5-)   080518 J24  3.9+  0.5+    080523 F85  3.5-  2.3-  

080511 E12 (8.9-  4.1-)   080518 J24  3.5+  0.3-    080525 349  0.6-  3.7+  

080512 F85  3.3-  2.2-    080519 J24  2.3+  0.9-    080525 349  3.0-  0.8+  

080512 F85  2.0-  2.9-    080519 J24  2.8+  1.0-                            



NAKANO

         **** Don't distribute anyone except personal use only ****

                (C) Copyright 2008 OAA/ComputingSection

write mail from CFAD0::NAKANO on 2008-07-01 07:43:53(JST).

 

◎C/2008 J4の軌道と予報位置



 すでにMPEC L32 (2008)で報じられているとおり,上尾の門田健一氏から5月

20日と25日の観測が報告された.氏のCCD全光度は,それぞれ,14.8等と14.3等

で,5月20日のコマの視直径は0'.7,西南に1'の尾,25日には1'.3のコマと3'

の尾が見られた.氏の観測位置は,以前のEMESの予報位置に比較的良くあって

いた.彗星はあとしばらく,観測可能であろう.



    C/2008 J4 (McNaught)

T 2008 June 19.50858 TT                                 Nakano

q   0.4479502            (2000.0)            P               Q

                   Peri.   93.39341     +0.02156754     -0.33151041

                   Node   289.24769     -0.33227040     +0.88742052

e   1.0            Incl.   87.50175     +0.94293755     +0.32028996

From 22 observations 2008 May 10-25.



2008/        α  (2000) δ      △      r    Daily motion  Elong. Phase    m1   天文薄明開始時

 27h JST    h  m       。  ,        AU      AU      ,     。     。      。      等     h。    A 。 

June 10   04 04.10  +48 50.9    0.893   0.500   142.6/ 81    29.5   88.9   12.2   +11.0  216.5

     11   04 18.47  +49 08.7    0.918   0.490   136.7/ 86    28.8   86.7   12.2    +9.9  215.1

     12   04 32.40  +49 15.8    0.944   0.480   131.0/ 90    28.1   84.3   12.2    +8.8  213.8

     13   04 45.77  +49 13.0    0.971   0.472   125.5/ 94    27.3   81.6   12.2    +7.7  212.7

     14   04 58.51  +49 01.3    0.999   0.464   120.4/ 98    26.6   78.7   12.2    +6.6  211.7

     15   05 10.54  +48 41.5    1.027   0.458   115.6/102    25.9   75.7   12.2    +5.5  210.9

     16   05 21.84  +48 14.6    1.056   0.454   111.0/106    25.2   72.4   12.2    +4.4  210.2

     17   05 32.39  +47 41.4    1.086   0.450   106.8/110    24.4   69.0   12.2    +3.3  209.7

     18   05 42.21  +47 03.0    1.116   0.448   102.9/114    23.7   65.6   12.3    +2.2  209.3

     19   05 51.30  +46 20.1    1.146   0.448    99.3/117    22.9   62.0   12.3    +1.1  209.0

     20   05 59.71  +45 33.5    1.176   0.449    95.9/120    22.1   58.5   12.4    +0.1  208.8

     21   06 07.46  +44 43.9    1.206   0.452    92.7/123    21.3   54.9   12.5    -1.0  208.7

     22   06 14.61  +43 51.9    1.236   0.456    89.8/126    20.5   51.4   12.5    -2.0  208.8

     23   06 21.21  +42 58.1    1.266   0.461    87.0/129    19.7   47.9   12.6    -3.0  208.9

     24   06 27.29  +42 03.0    1.295   0.468    84.3/131    18.8   44.6   12.8    -4.0  209.1

     25   06 32.92  +41 07.0    1.324   0.475    81.8/133    18.0   41.3   12.9    -4.9  209.4

     26   06 38.12  +40 10.5    1.352   0.485    79.4/135    17.1   38.2   13.0    -5.8  209.7

     27   06 42.94  +39 13.9    1.380   0.495    77.2/137    16.3   35.2   13.1    -6.6  210.1

     28   06 47.43  +38 17.3    1.407   0.506    75.0/138    15.4   32.3   13.3    -7.4  210.6

     29   06 51.61  +37 21.0    1.434   0.518    72.9/140    14.6   29.6   13.4    -8.2  211.2

     30   06 55.52  +36 25.1    1.460   0.531    70.9/141    13.7   27.0   13.6    -8.9  211.8

July  1   06 59.18  +35 29.8    1.486   0.544    69.0/142    12.9   24.6   13.7    -9.6  212.4

      2   07 02.62  +34 35.2    1.511   0.558    67.2/143    12.0   22.3   13.9   -10.3  213.1

      3   07 05.87  +33 41.4    1.535   0.573    65.5/144    11.2   20.2   14.0   -10.9  213.8

      4   07 08.93  +32 48.4    1.559   0.588    63.8/145    10.4   18.1   14.2   -11.4  214.6

      5   07 11.84  +31 56.3    1.582   0.604    62.2/145     9.6   16.2   14.3   -11.9  215.4

      6   07 14.60  +31 05.1    1.605   0.620    60.7/146     8.8   14.5   14.5   -12.4  216.3

      7   07 17.24  +30 14.8    1.628   0.636    59.3/146     8.0   12.8   14.6   -12.9  217.1

      8   07 19.75  +29 25.4    1.649   0.653    57.9/147     7.2   11.3   14.7   -13.3  218.0

      9   07 22.16  +28 36.9    1.671   0.670    56.5/147     6.5    9.8   14.9   -13.6  218.9

     10   07 24.47  +27 49.3    1.691   0.687    55.3/148     5.7    8.5   15.0   -13.9  219.8

     11   07 26.69  +27 02.5    1.712   0.705    54.1/148     5.1    7.3   15.1   -14.2  220.8

     12   07 28.82  +26 16.7    1.732   0.722    52.9/148     4.4    6.2   15.3   -14.5  221.8

     13   07 30.89  +25 31.7    1.751   0.740    51.8/148     3.9    5.3   15.4   -14.7  222.8

     14   07 32.88  +24 47.5    1.770   0.758    50.8/149     3.4    4.6   15.5   -14.9  223.8

     15   07 34.81  +24 04.1    1.789   0.776    49.8/149     3.1    4.0   15.7   -15.0  224.8

     16   07 36.68  +23 21.4    1.807   0.794    48.8/149     2.9    3.8   15.8   -15.1  225.8

     17   07 38.49  +22 39.5    1.825   0.812    47.9/149     3.0    3.8   15.9   -15.2  226.8

     18   07 40.26  +21 58.4    1.843   0.830    47.0/149     3.3    4.0   16.0   -15.2  227.9

     19   07 41.97  +21 17.9    1.860   0.848    46.2/149     3.7    4.4   16.1   -15.3  228.9

     20   07 43.64  +20 38.0    1.876   0.866    45.4/150     4.2    4.9   16.2   -15.3  230.0

     21   07 45.27  +19 58.9    1.893   0.884    44.6/150     4.7    5.4   16.4   -15.2  231.0

     22   07 46.86  +19 20.3    1.909   0.903    43.9/150     5.4    6.0   16.5   -15.1  232.1

     23   07 48.42  +18 42.3    1.925   0.921    43.2/150     6.0    6.6   16.6   -15.0  233.2

     24   07 49.94  +18 04.9    1.940   0.939    42.5/150     6.7    7.2   16.7   -14.9  234.2

     25   07 51.42  +17 28.1    1.955   0.957    41.9/150     7.4    7.8   16.8   -14.8  235.3

     26   07 52.88  +16 51.7    1.970   0.975    41.3/150     8.1    8.4   16.9   -14.6  236.4

     27   07 54.30  +16 15.9    1.985   0.993    40.7/150     8.7    8.9   17.0   -14.4  237.4

     28   07 55.70  +15 40.5    1.999   1.011    40.1/150     9.5    9.5   17.1   -14.2  238.5

     29   07 57.07  +15 05.7    2.013   1.029    39.6/150    10.2   10.0   17.1   -13.9  239.6

     30   07 58.41  +14 31.2    2.027   1.047    39.0/151    10.9   10.5   17.2   -13.7  240.6

     31   07 59.73  +13 57.2    2.040   1.065    38.5/151    11.6   11.0   17.3   -13.4  241.7

Aug.  1   08 01.02  +13 23.6    2.053   1.083    38.1/151    12.3   11.5   17.4   -13.1  242.8

                    m1 = 15.5 + 5 log △ + 10.0 log r

NAKANO

         **** Don't distribute anyone except personal use only ****

                (C) Copyright 2008 OAA/ComputingSection

write mail from CFAD0::NAKANO on 2008-06-10 06:25:09(JST).



    C/2008 J4 (McNaught)

T 2008 June 19.50297 TT                                 Nakano

q   0.4474495            (2000.0)            P               Q

                   Peri.   93.44913     +0.01927801     -0.33122233

                   Node   289.23616     -0.33208109     +0.88784479

e   1.0            Incl.   87.62232     +0.94305382     +0.31941101

                       

NAKANO

         **** Don't distribute anyone except personal use only ****

                (C) Copyright 2008 OAA/ComputingSection

write mail from CFAD0::NAKANO on 2008-05-30 05:17:26(JST).



◎C/2008 J4の軌道と予報位置



 彗星は,6月上旬に明け方の低空で12等級まで明るくなるでしょう.



    C/2008 J4 (McNaught)

T 2008 June 19.44060 TT                                 Nakano

q   0.4448496            (2000.0)            P               Q

                   Peri.   93.70866     +0.00522527     -0.32839831

                   Node   289.10938     -0.33232097     +0.89028447

e   1.0            Incl.   88.39556     +0.94315188     +0.31551246

From 11 observations 2008 May 10-13.



2008/        α  (2000) δ      △      r    Daily motion  Elong. Phase    m1   天文薄明開始時

 27h JST    h  m       。  ,        AU      AU      ,     。     。      。      等     h。    A 。 

May  15   23 46.47  -00 01.0    0.884   0.929   126.7/ 33    58.3   67.7   15.4   +13.1  279.6

     16   23 51.10  +01 45.0    0.864   0.911   132.9/ 33    57.5   69.4   15.3   +13.8  277.8

     17   23 55.97  +03 36.0    0.845   0.893   139.2/ 33    56.6   71.1   15.1   +14.5  276.0

     18   00 01.11  +05 32.1    0.827   0.875   145.7/ 34    55.7   72.9   15.0   +15.1  274.0

     19   00 06.54  +07 33.3    0.810   0.856   152.2/ 34    54.7   74.7   14.9   +15.8  271.9

     20   00 12.30  +09 39.3    0.794   0.838   158.7/ 34    53.7   76.6   14.7   +16.4  269.7

     21   00 18.40  +11 50.1    0.780   0.820   165.1/ 35    52.5   78.5   14.6   +17.0  267.4

     22   00 24.89  +14 05.3    0.767   0.802   171.2/ 35    51.3   80.4   14.5   +17.5  264.9

     23   00 31.79  +16 24.4    0.755   0.784   176.9/ 36    50.1   82.3   14.3   +18.0  262.3

     24   00 39.13  +18 46.7    0.746   0.766   182.1/ 37    48.8   84.1   14.2   +18.4  259.6

     25   00 46.97  +21 11.6    0.738   0.748   186.6/ 38    47.4   86.0   14.1   +18.7  256.9

     26   00 55.32  +23 37.9    0.732   0.730   190.4/ 39    46.0   87.7   14.0   +18.9  254.0

     27   01 04.23  +26 04.7    0.728   0.712   193.2/ 40    44.6   89.4   13.8   +19.1  251.1

     28   01 13.73  +28 30.5    0.726   0.695   195.0/ 42    43.2   91.0   13.7   +19.1  248.1

     29   01 23.86  +30 54.2    0.726   0.677   195.7/ 44    41.9   92.4   13.6   +19.1  245.1

     30   01 34.62  +33 14.1    0.729   0.660   195.4/ 46    40.5   93.7   13.5   +18.9  242.1

     31   01 46.05  +35 28.9    0.733   0.643   194.0/ 48    39.2   94.7   13.4   +18.6  239.2

June  1   01 58.14  +37 37.0    0.740   0.626   191.5/ 50    37.9   95.5   13.3   +18.2  236.3

      2   02 10.88  +39 37.0    0.749   0.610   188.1/ 53    36.7   96.0   13.2   +17.6  233.5

      3   02 24.22  +41 27.6    0.760   0.594   183.9/ 56    35.6   96.3   13.1   +17.0  230.8

      4   02 38.12  +43 07.8    0.773   0.578   179.0/ 59    34.5   96.2   13.1   +16.3  228.2

      5   02 52.49  +44 36.7    0.788   0.563   173.5/ 62    33.5   95.9   13.0   +15.5  225.8

      6   03 07.22  +45 53.4    0.805   0.549   167.6/ 66    32.6   95.2   12.9   +14.7  223.5

      7   03 22.19  +46 57.8    0.824   0.535   161.5/ 70    31.7   94.2   12.9   +13.8  221.4

      8   03 37.26  +47 49.6    0.845   0.521   155.2/ 74    30.9   92.9   12.8   +12.8  219.5

      9   03 52.26  +48 29.0    0.867   0.509   148.9/ 78    30.1   91.3   12.8   +11.8  217.7

     10   04 07.05  +48 56.3    0.891   0.497   142.7/ 82    29.3   89.4   12.7   +10.7  216.1

     11   04 21.48  +49 12.2    0.916   0.486   136.7/ 87    28.6   87.1   12.7    +9.6  214.7

     12   04 35.43  +49 17.3    0.942   0.477   130.8/ 91    27.9   84.7   12.7    +8.5  213.4

     13   04 48.79  +49 12.6    0.969   0.468   125.3/ 95    27.2   81.9   12.6    +7.4  212.3

     14   05 01.47  +48 58.9    0.998   0.461   120.1/ 99    26.4   79.0   12.6    +6.3  211.4

     15   05 13.42  +48 37.2    1.027   0.455   115.2/103    25.7   75.8   12.6    +5.2  210.6

     16   05 24.62  +48 08.4    1.056   0.450   110.6/107    25.0   72.5   12.7    +4.0  209.9

     17   05 35.06  +47 33.6    1.086   0.447   106.4/111    24.3   69.1   12.7    +2.9  209.4

     18   05 44.73  +46 53.6    1.116   0.445   102.4/115    23.5   65.5   12.7    +1.8  209.0

     19   05 53.68  +46 09.2    1.147   0.445    98.8/118    22.7   61.9   12.8    +0.7  208.7

     20   06 01.93  +45 21.3    1.177   0.446    95.4/122    21.9   58.3   12.8    -0.3  208.6

     21   06 09.54  +44 30.5    1.208   0.449    92.2/125    21.1   54.7   12.9    -1.4  208.5

     22   06 16.53  +43 37.4    1.238   0.453    89.3/127    20.3   51.1   13.0    -2.4  208.6

     23   06 22.98  +42 42.6    1.267   0.458    86.5/130    19.5   47.6   13.1    -3.4  208.7

     24   06 28.91  +41 46.6    1.297   0.465    83.8/132    18.6   44.2   13.2    -4.3  209.0

     25   06 34.39  +40 49.9    1.326   0.473    81.3/134    17.8   40.9   13.4    -5.3  209.3

     26   06 39.45  +39 52.7    1.354   0.483    79.0/136    16.9   37.7   13.5    -6.2  209.7

     27   06 44.15  +38 55.5    1.382   0.493    76.7/138    16.0   34.7   13.6    -7.0  210.1

     28   06 48.50  +37 58.4    1.410   0.504    74.5/139    15.2   31.8   13.8    -7.8  210.6

     29   06 52.56  +37 01.6    1.436   0.516    72.5/141    14.3   29.1   13.9    -8.6  211.2

     30   06 56.35  +36 05.4    1.462   0.529    70.5/142    13.4   26.5   14.1    -9.3  211.8

July  1   06 59.91  +35 09.8    1.488   0.543    68.6/143    12.6   24.1   14.2   -10.0  212.5

                    m1 = 16.0 + 5 log △ + 10.0 log r

NAKANO

         **** Don't distribute anyone except personal use only ****

                (C) Copyright 2008 OAA/ComputingSection

write mail from CFAD0::NAKANO on 2008-05-17 06:03:52(JST).

 

◎C/2008 J4の軌道と予報位置



 彗星は,6月上旬に明け方の低空で12等級まで明るくなるでしょう.



    C/2008 J4 (McNaught)

T 2008 June 19.44060 TT                                 Nakano

q   0.4448496            (2000.0)            P               Q

                   Peri.   93.70866     +0.00522527     -0.32839831

                   Node   289.10938     -0.33232097     +0.89028447

e   1.0            Incl.   88.39556     +0.94315188     +0.31551246

From 11 observations 2008 May 10-13.



2008/        α  (2000) δ      △      r    Daily motion  Elong. Phase    m1   天文薄明開始時

 27h JST    h  m       。  ,        AU      AU      ,     。     。      。      等     h。    A 。 

May  15   23 46.47  -00 01.0    0.884   0.929   126.7/ 33    58.3   67.7   15.4   +13.1  279.6

     16   23 51.10  +01 45.0    0.864   0.911   132.9/ 33    57.5   69.4   15.3   +13.8  277.8

     17   23 55.97  +03 36.0    0.845   0.893   139.2/ 33    56.6   71.1   15.1   +14.5  276.0

     18   00 01.11  +05 32.1    0.827   0.875   145.7/ 34    55.7   72.9   15.0   +15.1  274.0

     19   00 06.54  +07 33.3    0.810   0.856   152.2/ 34    54.7   74.7   14.9   +15.8  271.9

     20   00 12.30  +09 39.3    0.794   0.838   158.7/ 34    53.7   76.6   14.7   +16.4  269.7

     21   00 18.40  +11 50.1    0.780   0.820   165.1/ 35    52.5   78.5   14.6   +17.0  267.4

     22   00 24.89  +14 05.3    0.767   0.802   171.2/ 35    51.3   80.4   14.5   +17.5  264.9

     23   00 31.79  +16 24.4    0.755   0.784   176.9/ 36    50.1   82.3   14.3   +18.0  262.3

     24   00 39.13  +18 46.7    0.746   0.766   182.1/ 37    48.8   84.1   14.2   +18.4  259.6

     25   00 46.97  +21 11.6    0.738   0.748   186.6/ 38    47.4   86.0   14.1   +18.7  256.9

     26   00 55.32  +23 37.9    0.732   0.730   190.4/ 39    46.0   87.7   14.0   +18.9  254.0

     27   01 04.23  +26 04.7    0.728   0.712   193.2/ 40    44.6   89.4   13.8   +19.1  251.1

     28   01 13.73  +28 30.5    0.726   0.695   195.0/ 42    43.2   91.0   13.7   +19.1  248.1

     29   01 23.86  +30 54.2    0.726   0.677   195.7/ 44    41.9   92.4   13.6   +19.1  245.1

     30   01 34.62  +33 14.1    0.729   0.660   195.4/ 46    40.5   93.7   13.5   +18.9  242.1

     31   01 46.05  +35 28.9    0.733   0.643   194.0/ 48    39.2   94.7   13.4   +18.6  239.2

June  1   01 58.14  +37 37.0    0.740   0.626   191.5/ 50    37.9   95.5   13.3   +18.2  236.3

      2   02 10.88  +39 37.0    0.749   0.610   188.1/ 53    36.7   96.0   13.2   +17.6  233.5

      3   02 24.22  +41 27.6    0.760   0.594   183.9/ 56    35.6   96.3   13.1   +17.0  230.8

      4   02 38.12  +43 07.8    0.773   0.578   179.0/ 59    34.5   96.2   13.1   +16.3  228.2

      5   02 52.49  +44 36.7    0.788   0.563   173.5/ 62    33.5   95.9   13.0   +15.5  225.8

      6   03 07.22  +45 53.4    0.805   0.549   167.6/ 66    32.6   95.2   12.9   +14.7  223.5

      7   03 22.19  +46 57.8    0.824   0.535   161.5/ 70    31.7   94.2   12.9   +13.8  221.4

      8   03 37.26  +47 49.6    0.845   0.521   155.2/ 74    30.9   92.9   12.8   +12.8  219.5

      9   03 52.26  +48 29.0    0.867   0.509   148.9/ 78    30.1   91.3   12.8   +11.8  217.7

     10   04 07.05  +48 56.3    0.891   0.497   142.7/ 82    29.3   89.4   12.7   +10.7  216.1

     11   04 21.48  +49 12.2    0.916   0.486   136.7/ 87    28.6   87.1   12.7    +9.6  214.7

     12   04 35.43  +49 17.3    0.942   0.477   130.8/ 91    27.9   84.7   12.7    +8.5  213.4

     13   04 48.79  +49 12.6    0.969   0.468   125.3/ 95    27.2   81.9   12.6    +7.4  212.3

     14   05 01.47  +48 58.9    0.998   0.461   120.1/ 99    26.4   79.0   12.6    +6.3  211.4

     15   05 13.42  +48 37.2    1.027   0.455   115.2/103    25.7   75.8   12.6    +5.2  210.6

     16   05 24.62  +48 08.4    1.056   0.450   110.6/107    25.0   72.5   12.7    +4.0  209.9

     17   05 35.06  +47 33.6    1.086   0.447   106.4/111    24.3   69.1   12.7    +2.9  209.4

     18   05 44.73  +46 53.6    1.116   0.445   102.4/115    23.5   65.5   12.7    +1.8  209.0

     19   05 53.68  +46 09.2    1.147   0.445    98.8/118    22.7   61.9   12.8    +0.7  208.7

     20   06 01.93  +45 21.3    1.177   0.446    95.4/122    21.9   58.3   12.8    -0.3  208.6

     21   06 09.54  +44 30.5    1.208   0.449    92.2/125    21.1   54.7   12.9    -1.4  208.5

     22   06 16.53  +43 37.4    1.238   0.453    89.3/127    20.3   51.1   13.0    -2.4  208.6

     23   06 22.98  +42 42.6    1.267   0.458    86.5/130    19.5   47.6   13.1    -3.4  208.7

     24   06 28.91  +41 46.6    1.297   0.465    83.8/132    18.6   44.2   13.2    -4.3  209.0

     25   06 34.39  +40 49.9    1.326   0.473    81.3/134    17.8   40.9   13.4    -5.3  209.3

     26   06 39.45  +39 52.7    1.354   0.483    79.0/136    16.9   37.7   13.5    -6.2  209.7

     27   06 44.15  +38 55.5    1.382   0.493    76.7/138    16.0   34.7   13.6    -7.0  210.1

     28   06 48.50  +37 58.4    1.410   0.504    74.5/139    15.2   31.8   13.8    -7.8  210.6

     29   06 52.56  +37 01.6    1.436   0.516    72.5/141    14.3   29.1   13.9    -8.6  211.2

     30   06 56.35  +36 05.4    1.462   0.529    70.5/142    13.4   26.5   14.1    -9.3  211.8

July  1   06 59.91  +35 09.8    1.488   0.543    68.6/143    12.6   24.1   14.2   -10.0  212.5

                    m1 = 16.0 + 5 log △ + 10.0 log r

NAKANO

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write mail from CFAD0::NAKANO on 2008-05-17 06:03:52(JST).

 



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