記事タイトル:Comet P/2001 WF2 (LONEOS) 

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[2005年5月10日 6時13分36秒]

お名前: 佐藤 裕久   
LONEOSによって発見され2001 WF2とつけられていた小惑星状の天体は、2月13.5日UT、
Whipple天文台の1.2-m反射によるCCD画像からP.A.320°に45″の明瞭な尾があること
がわかった。つづいて、Catalinaの1.54-m反射による1500秒のRバンド画像では、P.A.
320°に27″の尾と星状の中央集光がある。

発見位置は次のとおり、

     2001 UT             R.A. (2000) Decl.        m2
     Nov. 17.27290    3 17 53.91   - 5 02 05.4   18.9

軌道要素、位置推算表は次のとおり、

Orbital elements:
    P/2001 WF2 (LONEOS)
Epoch 2002 Feb. 15.0 TT = JDT 2452320.5
T 2002 Jan. 29.84804 TT                                 MPC
q   0.9763511            (2000.0)            P               Q
n   0.19656246     Peri.   51.35236     -0.56192571     -0.77787496
a   2.9295595      Node    75.13262     +0.63927749     -0.62422348
e   0.6667243      Incl.   16.92268     +0.52494170     -0.07249552
P   5.01

Ephemeris:
    P/2001 WF2 (LONEOS)
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1    m2
2002 02 05    20 03.29   +64 10.1    0.252    0.980    81.4    83.9  14.9  19.9
2002 02 10    19 10.43   +63 32.6    0.265    0.989    82.8    81.8  15.1  20.0
2002 02 15    18 26.16   +62 00.9    0.279    1.003    85.0    78.9  15.2  20.0
2002 02 20    17 50.06   +59 58.9    0.293    1.021    87.9    75.4  15.4  20.0
2002 02 25    17 20.35   +57 41.8    0.307    1.044    91.4    71.5  15.6  20.0
2002 03 02    16 55.17   +55 18.0    0.320    1.070    95.4    67.2  15.8  20.0
2002 03 07    16 32.99   +52 51.1    0.334    1.100    99.8    62.8  16.0  20.1
2002 03 12    16 12.71   +50 20.8    0.347    1.132   104.6    58.2  16.2  20.1
2002 03 17    15 53.70   +47 45.4    0.362    1.167   109.6    53.4  16.5  20.1
2002 03 22    15 35.70   +45 02.6    0.377    1.205   114.9    48.6  16.7  20.1
2002 03 27    15 18.71   +42 11.1    0.394    1.244   120.2    43.9  16.9  20.1
2002 04 01    15 02.83   +39 11.0    0.413    1.284   125.5    39.3  17.2  20.2
2002 04 06    14 48.21   +36 03.7    0.436    1.326   130.5    35.0  17.4  20.3
2002 04 11    14 34.99   +32 51.6    0.462    1.369   135.0    31.2  17.7  20.3
2002 04 16    14 23.32   +29 37.7    0.493    1.412   138.8    27.9  18.0  20.5
2002 04 21    14 13.28   +26 25.5    0.528    1.456   141.6    25.4  18.2  20.6
2002 04 26    14 04.88   +23 18.3    0.568    1.500   143.3    23.6  18.5  20.8
2002 05 01    13 58.05   +20 18.9    0.613    1.545   143.8    22.7  18.8  21.0
2002 05 06    13 52.67   +17 28.9    0.663    1.590   143.2    22.4  19.1  21.2
2002 05 11    13 48.65   +14 49.1    0.718    1.635   141.6    22.5  19.4  21.4
2002 05 16    13 45.85   +12 19.9    0.778    1.680   139.4    23.0  19.7  21.7
2002 05 21    13 44.18   +10 00.9    0.842    1.725   136.8    23.7  20.0  21.9
2002 05 26    13 43.49   +07 51.8    0.910    1.769   133.8    24.4  20.3  22.2
2002 05 31    13 43.66   +05 51.9    0.983    1.814   130.6    25.1  20.5  22.4
2002 06 05    13 44.60   +04 00.3    1.059    1.858   127.3    25.7  20.8  22.6

(IAUC 7827、MPEC 2002-C94)
[2002年2月14日 22時26分32秒]

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