◎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%
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