◎彗星観測,この1年の活動状況


  次の2つのリストは,天文台別の1997年とこの1年間の彗星の観測報告数を
まとめたものです.観測の中には,衛星,レ−ダによるものも含まれています.
昨年度までと,だいぶ,状況が変わりました.

 観測数は、放物線軌道もしくは放物線に近い楕円軌道の彗星(CMT)と、
短周期彗星(PCT)に分けて集計してある。
 
Activity of Comet Observations in 1997:
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 No. CDE  Observatory               Total     CMT    PCT       Arc
-----------------------------------------------------------------------
          Japanese Amateur          3,378  ( 1,575  1,803)  1997 - 1997
  1  118  Modra                     1,084  (   450    634)  1997 - 1997
  2  402* Dynic Astron. Obs.          792  (   394    398)  1997 - 1997
  3  249  SOHO                        700  (   700      0)  1997 - 1997
  4  360* Kuma Kogen [Nakamura]       698  (   236    462)  1997 - 1997
  5  897* YGCO Chiyoda Station        574  (   257    317)  1997 - 1997
  6  046  Klet Observatory            474  (   229    245)  1997 - 1997
  7  867* Saji Observatory            283  (   103    180)  1997 - 1997
  8  422  Loomberah [Garradd]         263  (   163    100)  1997 - 1997
  9  691  Steward Obs. KittPeak       243  (    49    194)  1997 - 1997
 10  900* Moriyama [Ikari]            218  (   105    113)  1997 - 1997
 11  758  BCC Obs. Cocoa              209  (   199     10)  1997 - 1997
 12  954  Teide Observatory           177  (     3    174)  1997 - 1997
 13  504  Le Creusot [Merlin]         164  (   133     31)  1997 - 1997
 14  355* Hadano [Asami]              158  (    99     59)  1997 - 1997
 15  696  Whipple Obs. Mt. Hop.       155  (    23    132)  1997 - 1997
 16  367* Yatsuka [Abe]               146  (   113     33)  1997 - 1997
     605  Marl [Jung]                 146  (    64     82)  1997 - 1997
 18  352* Konan [Hotta]               127  (    59     68)  1997 - 1997
 19  372* Geisei [Seki]               107  (    59     48)  1997 - 1997
 20  557  Ondrejov                     93  (    56     37)  1997 - 1997
 21  628  Mulheim-Ruhr [Martin]        89  (    83      6)  1997 - 1997
 22  709  W & B Obs. Cloudcroft        84  (    48     36)  1997 - 1997
 23  861  Barao Geraldo [Holv.]        80  (    54     26)  1997 - 1997
 24  006  Fabra Observatory            74  (    74      0)  1997 - 1997
 25  108  Montelupo [Tombelli]         72  (    29     43)  1997 - 1997
 26  658  Dominion Obs.Victoria        70  (    45     25)  1997 - 1997
 27  864* Kumamoto [Kobayashi]         64  (    48     16)  1997 - 1997
 28  844  Los Molinos                  59  (    53      6)  1997 - 1997
 29  327  Peking Obs. Xinglong         58  (    32     26)  1997 - 1997
 30  057  Belgrade                     57  (    29     28)  1997 - 1997
     411* Oizumi [Kobayashi]           57  (     2     55)  1997 - 1997
     568  Mauna Kea                    57  (     1     56)  1997 - 1997
 33  587  Sormano                      49  (    35     14)  1997 - 1997
 34  017  Hoher List                   48  (    48      0)  1997 - 1997
 35  403* Kani [Mizuno]                45  (    23     22)  1997 - 1997
 36  689  U.S. Naval Obs. Flag.        44  (     0     44)  1997 - 1997
 37  566  Haleakala-NEAT/GEODSS        42  (    36      6)  1997 - 1997
 38  834  Buenos Aires-AAAA            39  (    34      5)  1997 - 1997
 39  084  Pulkovo                      37  (    37      0)  1997 - 1997
 40  089  Nikolaev                     36  (    36      0)  1997 - 1997
 41  104  San Marcello Pistoie.        34  (    30      4)  1997 - 1997
 42  426  Woomera [Zoltowski]          33  (    19     14)  1997 - 1997
 43  353* Nishi Kobe [Ito]             32  (    23      9)  1997 - 1997
 44  700  Chinle [Bruton]              30  (    12     18)  1997 - 1997
 45  388+ Tokyo-Mitaka                 28  (    21      7)  1997 - 1997
     540  Linz                         28  (    25      3)  1997 - 1997
 47  967  Greens Norton [Nevie]        27  (    10     17)  1997 - 1997
 48  045  Vienna (since 1879)          26  (    26      0)  1997 - 1997
     616  Brno                         26  (    20      6)  1997 - 1997
     809  European Southern Obs        26  (     6     20)  1997 - 1997
 51  613  Heisingen [Denzau]           25  (    25      0)  1997 - 1997
     670  Camarillo [Rogers]           25  (    19      6)  1997 - 1997
     711  McDonald Observatory         25  (     1     24)  1997 - 1997
     958  Observatoire de Dax          25  (    25      0)  1997 - 1997
 55  610  Pianoro                      24  (     0     24)  1997 - 1997
     963  Werrington [Mackey]          24  (    22      2)  1997 - 1997
 57  385* Nihondaira Obs. [Ur.]        23  (     0     23)  1997 - 1997
 58  886* Mishima [Akiyama]            22  (    22      0)  1997 - 1997
     970  Chelmsford [James]           22  (    22      0)  1997 - 1997
 60  143  Gnosca [Sposetti]            20  (    20      0)  1997 - 1997
     620  Obs. Astro. de Mallo.        20  (     7     13)  1997 - 1997
 62  965  Obs. Astr. Algarve P.        19  (    16      3)  1997 - 1997
     966  Church Stretton [Lau]        19  (    12      7)  1997 - 1997
 64  704  Lincoln Lab. ETS, NM         18  (     0     18)  1997 - 1997
 65  424  Macquarie [Child]            15  (    15      0)  1997 - 1997
     482  St. Andrews                  15  (    15      0)  1997 - 1997
     596  Colleverde di Guidon.        15  (     8      7)  1997 - 1997
 68  750  Hobbs Obs. Fall Creek        14  (    12      2)  1997 - 1997
     871* Akou [Kawanishi]             14  (    14      0)  1997 - 1997
     995  Durham                       14  (    14      0)  1997 - 1997
 71  473  Remanzacco [Sostero]         13  (     7      6)  1997 - 1997
     762  Four Winds Obs.              13  (    13      0)  1997 - 1997
     896* Yatsugatake Obs.             13  (    13      0)  1997 - 1997
 74  476  Grange Obs. [Pognant]        12  (    12      0)  1997 - 1997
     608  Haleakala-AMOS               12  (     8      4)  1997 - 1997
     978  Conder Brow [Buczyn.]        12  (    12      0)  1997 - 1997
 77  026  Berne-Zimmerwald             11  (     0     11)  1997 - 1997
     675  Palomar Mountain             11  (     9      2)  1997 - 1997
 79  107  Cavezzo [Calanca]            10  (    10      0)  1997 - 1997
     381+ Tokyo-Kiso                   10  (     6      4)  1997 - 1997
     589  Santa Lucia Stroncone        10  (     7      3)  1997 - 1997
     618  Martigues [Morata]           10  (    10      0)  1997 - 1997
 83  101  Kharkov                       9  (     9      0)  1997 - 1997
     113  Volkssternwarte Dreb.         9  (     9      0)  1997 - 1997
     627  Blauvac [Roy]                 9  (     0      9)  1997 - 1997
     665  Wallis Observatory            9  (     0      9)  1997 - 1997
     910  Caussols-ODAS                 9  (     6      3)  1997 - 1997
 88  121  Kharkov Uni. Chuguev.         7  (     7      0)  1997 - 1997
     124  Castres [Klotz]               7  (     0      7)  1997 - 1997
     617  Arbonne la Foret [Me]         7  (     7      0)  1997 - 1997
 91  621  Bergisch Gladbach [B]         6  (     6      0)  1997 - 1997
     629  JATE Obs. Szeged              6  (     6      0)  1997 - 1997
     657  Climenhaga Obs. Vic.          6  (     0      6)  1997 - 1997
     683  Goodricke-Pigott Obs.         6  (     0      6)  1997 - 1997
     817  Sudbury [di Cicco]            6  (     6      0)  1997 - 1997
 96  400* Kitami [Endate]               5  (     5      0)  1997 - 1997
 97  469  Courroux [Lehmann]            4  (     2      2)  1997 - 1997
     563  Seewalchen [Bressler]         4  (     0      4)  1997 - 1997
     595  Farra d'Isonzo                4  (     2      2)  1997 - 1997
     688  Lowell Obs. Mesa Sta.         4  (     0      4)  1997 - 1997
     975  Valencia                      4  (     4      0)  1997 - 1997
102  103  Ljubljana                     3  (     3      0)  1997 - 1997
     105  Moscow                        3  (     3      0)  1997 - 1997
     138  Village-Neuf                  3  (     3      0)  1997 - 1997
     139  Antibes                       3  (     3      0)  1997 - 1997
     599  Astron. Obs. Campo I.         3  (     3      0)  1997 - 1997
     630  Osenbach [Demeautis]          3  (     2      1)  1997 - 1997
     673  Table Mountain Obs.           3  (     3      0)  1997 - 1997
     735  George Obs. Needville         3  (     0      3)  1997 - 1997
     950  La Palma                      3  (     0      3)  1997 - 1997
     957  Merignac [Montanne]           3  (     3      0)  1997 - 1997
     959  Ramonville Saint Agne         3  (     3      0)  1997 - 1997
113  130  Lumezzane [Foglia]            2  (     0      2)  1997 - 1997
     611  Starkenburg Sternwar.         2  (     0      2)  1997 - 1997
     960  Rolvenden [Armstrong]         2  (     2      0)  1997 - 1997
     979  South Wonston [Arbo.]         2  (     0      2)  1997 - 1997
117  472  Merlette [Garro]              1  (     1      0)  1997 - 1997
-----------------------------------------------------------------------
Observatory      = 117              8,960  ( 4,907  4,053)
Japanese Amateur =  18              3,378  ( 1,575  1,803)
                    15%                38%      32%    44%
 
Actibity of Comet observations (MPCs on 1997 May 22-1998 Apr. 11):
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 No. CDE  Observatory               Total     CMT    PCT       Arc
-----------------------------------------------------------------------
          Japanese Amateur          3,363  ( 1,542  1,821)  1996 - 1998
  1  118  Modra                     1,270  (   562    708)  1997 - 1998
  2  249  SOHO                      1,026  ( 1,018      8)  1996 - 1998
  3  402* Dynic Astron. Obs.          734  (   367    367)  1997 - 1998
  4  360* Kuma Kogen [Nakamura]       630  (   219    411)  1997 - 1998
  5  897* YGCO Chiyoda Station        609  (   261    348)  1997 - 1998
  6  046  Klet Observatory            434  (   183    251)  1997 - 1998
  7  422  Loomberah [Garradd]         335  (   219    116)  1997 - 1998
  8  867* Saji Observatory            304  (    97    207)  1997 - 1998
  9  758  BCC Obs. Cocoa              284  (   221     63)  1997 - 1998
 10  954  Teide Observatory           248  (     3    245)  1997 - 1998
 11  504  Le Creusot [Merlin]         227  (   139     88)  1997 - 1998
 12  900* Moriyama [Ikari]            216  (   107    109)  1997 - 1998
 13  691  Steward Obs. KittPeak       207  (    23    184)  1997 - 1998
 14  355* Hadano [Asami]              171  (   103     68)  1997 - 1998
 15  696  Whipple Obs. Mt. Hop.       161  (    20    141)  1997 - 1998
 16  352* Konan [Hotta]               142  (    62     80)  1997 - 1998
 17  372* Geisei [Seki]               141  (    72     69)  1996 - 1998
 18  367* Yatsuka [Abe]               137  (   108     29)  1997 - 1998
     403* Kani [Mizuno]               137  (    40     97)  1997 - 1998
     844  Los Molinos                 137  (    94     43)  1997 - 1998
 21  045  Vienna (since 1879)         127  (    90     37)  1995 - 1997
 22  809  European Southern Obs       111  (     6    105)  1996 - 1997
 23  006  Fabra Observatory            98  (    98      0)  1996 - 1997
 24  605  Marl [Jung]                  96  (    57     39)  1997 - 1997
 25  426  Woomera [Zoltowski]          95  (    45     50)  1997 - 1998
 26  143  Gnosca [Sposetti]            89  (    20     69)  1997 - 1998
 27  628  Mulheim-Ruhr [Martin]        83  (    83      0)  1997 - 1997
 28  557  Ondrejov                     73  (    47     26)  1997 - 1998
 29  704  Lincoln Lab. ETS, NM         71  (    27     44)  1997 - 1998
 30  861  Barao Geraldo [Holv.]        68  (    50     18)  1997 - 1997
 31  580  Graz [Ornig]                 67  (    35     32)  1996 - 1996
 32  709  W & B Obs. Cloudcroft        66  (    42     24)  1997 - 1998
 33  610  Pianoro                      63  (     0     63)  1997 - 1998
 34  056  Skalnate Pleso               59  (    36     23)  1990 - 1990
     568  Mauna Kea                    59  (     1     58)  1997 - 1998
     864* Kumamoto [Kobayashi]         59  (    43     16)  1997 - 1997
 37  658  Dominion Obs.Victoria        52  (    38     14)  1994 - 1998
 38  700  Chinle [Bruton]              47  (    18     29)  1997 - 1998
 39  587  Sormano                      43  (    31     12)  1997 - 1998
 40  834  Buenos Aires-AAAA            39  (    34      5)  1997 - 1997
 41  084  Pulkovo                      38  (    38      0)  1992 - 1997
     108  Montelupo [Tombelli]         38  (    18     20)  1997 - 1998
     970  Chelmsford [James]           38  (    22     16)  1997 - 1998
 44  689  U.S. Naval Obs. Flag.        37  (     0     37)  1997 - 1997
 45  353* Nishi Kobe [Ito]             32  (    23      9)  1997 - 1997
 46  104  San Marcello Pistoie.        28  (    28      0)  1997 - 1997
     388+ Tokyo-Mitaka                 28  (    21      7)  1997 - 1997
 48  967  Greens Norton [Nevie]        27  (    10     17)  1997 - 1997
 49  089  Nikolaev                     26  (    26      0)  1997 - 1997
     616  Brno                         26  (    20      6)  1997 - 1997
     675  Palomar Mountain             26  (     7     19)  1954 - 1997
 52  613  Heisingen [Denzau]           25  (    25      0)  1997 - 1997
     958  Observatoire de Dax          25  (    25      0)  1997 - 1997
 54  540  Linz                         22  (    22      0)  1997 - 1998
     963  Werrington [Mackey]          22  (    22      0)  1997 - 1997
 56  327  Peking Obs. Xinglong         20  (    15      5)  1997 - 1997
     808  El Leoncito                  20  (    20      0)  1995 - 1996
     910  Caussols-ODAS                20  (     6     14)  1997 - 1998
 59  965  Obs. Astr. Algarve P.        19  (    16      3)  1997 - 1997
 60  057  Belgrade                     16  (    16      0)  1997 - 1997
 61  424  Macquarie [Child]            15  (    15      0)  1997 - 1997
     482  St. Andrews                  15  (    15      0)  1997 - 1997
     566  Haleakala-NEAT/GEODSS        15  (     9      6)  1995 - 1998
 64  750  Hobbs Obs. Fall Creek        14  (    12      2)  1997 - 1997
     871* Akou [Kawanishi]             14  (    14      0)  1997 - 1997
     995  Durham                       14  (    14      0)  1997 - 1997
 67  762  Four Winds Obs.              13  (    13      0)  1997 - 1997
     896* Yatsugatake Obs.             13  (    13      0)  1997 - 1997
 69  476  Grange Obs. [Pognant]        12  (    12      0)  1997 - 1997
     978  Conder Brow [Buczyn.]        12  (    12      0)  1997 - 1997
 71  026  Berne-Zimmerwald             11  (     0     11)  1997 - 1997
 72  145  s-Gravenwezel [Alde.]        10  (     0     10)  1998 - 1998
     381+ Tokyo-Kiso                   10  (     6      4)  1997 - 1997
     589  Santa Lucia Stroncone        10  (     7      3)  1997 - 1997
     618  Martigues [Morata]           10  (    10      0)  1997 - 1997
 76  101  Kharkov                       9  (     9      0)  1997 - 1997
     113  Volkssternwarte Dreb.         9  (     9      0)  1997 - 1997
     665  Wallis Observatory            9  (     0      9)  1997 - 1997
     670  Camarillo [Rogers]            9  (     6      3)  1997 - 1997
 80  323  Perth Observatory             8  (     5      3)  1996 - 1996
     886* Mishima [Akiyama]             8  (     8      0)  1997 - 1997
 82  107  Cavezzo [Calanca]             7  (     1      6)  1997 - 1998
     385* Nihondaira Obs. [Ur.]         7  (     0      7)  1997 - 1997
     473  Remanzacco [Sostero]          7  (     7      0)  1997 - 1997
     617  Arbonne la Foret [Me]         7  (     7      0)  1997 - 1997
     620  Obs. Astro. de Mallo.         7  (     7      0)  1997 - 1997
     966  Church Stretton [Lau]         7  (     4      3)  1997 - 1998
 88  470  Ceccano [Masi]                6  (     0      6)  1998 - 1998
     561  Piszkesteto                   6  (     0      6)  1998 - 1998
     619  Sabadell                      6  (     0      6)  1998 - 1998
     621  Bergisch Gladbach [B]         6  (     6      0)  1997 - 1997
     629  JATE Obs. Szeged              6  (     6      0)  1997 - 1997
     688  Lowell Obs. Mesa Sta.         6  (     0      6)  1997 - 1998
     711  McDonald Observatory          6  (     0      6)  1997 - 1997
     735  George Obs. Needville         6  (     0      6)  1997 - 1998
     817  Sudbury [di Cicco]            6  (     6      0)  1997 - 1997
 97  126  Monte Viseggi [Piet.]         5  (     0      5)  1998 - 1998
     400* Kitami [Endate]               5  (     5      0)  1997 - 1997
     602  Urania Obs. Vienna            5  (     5      0)  1996 - 1996
     627  Blauvac [Roy]                 5  (     0      5)  1997 - 1998
     732  Oaxaca [Roe]                  5  (     0      5)  1998 - 1998
     784  Stull Obs. Alfred Uni         5  (     5      0)  1998 - 1998
     860  Valinhos [Holvorcem]          5  (     5      0)  1998 - 1998
104  411* Oizumi [Kobayashi]            4  (     0      4)  1997 - 1997
     469  Courroux [Lehmann]            4  (     2      2)  1997 - 1997
     563  Seewalchen [Bressler]         4  (     0      4)  1997 - 1997
     596  Colleverde di Guidon.         4  (     4      0)  1997 - 1997
     611  Starkenburg Sternwar.         4  (     0      4)  1997 - 1998
     807  Cerro Tololo Obs.             4  (     4      0)  1996 - 1996
     975  Valencia                      4  (     4      0)  1997 - 1997
111  103  Ljubljana                     3  (     3      0)  1997 - 1997
     127  Bornheim [Ehring]             3  (     0      3)  1998 - 1998
     138  Village-Neuf                  3  (     3      0)  1997 - 1997
     139  Antibes                       3  (     3      0)  1997 - 1997
     957  Merignac [Montanne]           3  (     3      0)  1997 - 1997
     959  Ramonville Saint Agne         3  (     3      0)  1997 - 1997
117  120  Visnjan                       2  (     0      2)  1998 - 1998
     630  Osenbach [Demeautis]          2  (     2      0)  1997 - 1997
     634  Crolles [Thizy]               2  (     0      2)  1998 - 1998
     693  Catalina Sta. Tucson          2  (     0      2)  1998 - 1998
     761  Zephyrhills[Kowalski]         2  (     0      2)  1998 - 1998
     960  Rolvenden [Armstrong]         2  (     2      0)  1997 - 1997
123  095  Crimea-Nauchnij               1  (     0      1)  1993 - 1993
     673  Table Mountain Obs.           1  (     1      0)  1997 - 1997
--------------------------------------------------------------------------
Observatory      = 124              9,979  ( 5,386  4,593)
Japanese Amateur =  18              3,363  ( 1,542  1,821)
                    15%                34%      29%    40%
NAKANO
write mail from CFAD0::NAKANO on 1998-04-20 21:51:38(JST).


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