Outstanding Activity of Japanese Amateur Astronomer Hitoshi Yamaoka Kyushu UniversityKyushu University 2007. 07. 14 at HOU2007(NAOJ/Mitaka)

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Presentation transcript:

Outstanding Activity of Japanese Amateur Astronomer Hitoshi Yamaoka Kyushu UniversityKyushu University at HOU2007(NAOJ/Mitaka)

Activity in first half of 20 th century Meiji era (-1912), Taisho era (-1926) Meiji era (-1912), Taisho era (-1926) Sunspots, variable stars, … ASJ (Astronomical Society of Japan: 1908) OAA (Oriental Astronomical Association: 1920) 1936: The year of the First Discoveries (3 objects!) 1936: The year of the First Discoveries (3 objects!) C/1936 O1 (Kaho-Kozik-Lis) CP Lac (Gomi) V630 Sgr (Okabayashi)

Minoru Honda: The Great 12 Comet discovery 12 Comet discovery C/1940 S1 (Okabayashi-Honda) C/1940 S1 (Okabayashi-Honda)… C/1968 Q1 (Honda) C/1968 Q1 (Honda) 11 Nova (& peculiar variable) 11 Nova (& peculiar variable) FH Ser (Nova Ser 1970) FH Ser (Nova Ser 1970)… V827 Her (Nova Her 1987) V827 Her (Nova Her 1987) (1913 – 1990)

Veterans vs Newbies K. Ikeya K. Ikeya C/1963 A1 (Ikeya) C/1963 A1 (Ikeya) C/1965 S1 (Ikeya-Seki) C/1965 S1 (Ikeya-Seki) 153P/2002 C1 (Ikeya-Zhang) 153P/2002 C1 (Ikeya-Zhang) M. Suzuki M. Suzuki C/2002 O6 (SWAN) C/2002 O6 (SWAN)

Numbers of discovered objects 59

Nova discoveries: Kingdom Japan 1998 – 2005 discoverers 1998 – 2005 discoverers 45 people (total) 45 people (total) 29 in northern hemisphere 29 in northern hemisphere 25 is Japanese! 25 is Japanese! N Sgr 1998 Takamizawa N Sco 1998 Liller (Chile) N Mus 1998 Liller (Chile) V4444 Sgr Yamamoto V382 Vel Williams (Australia) V1493 Aql Tago DD Cir Liller (Chile) V1494 Aql Pereira (Portogal) V4642 Sgr Sakurai V463 Sct Haseda (CI Aql Takamizawa, Yamamoto) V455 Pup Kanatsu V4643 Sgr Liller (Chile) V1548 Aql Collins (England) V1178 Sco Haseda V2274 Cyg Nakamura V2275 Cyg Tago Hatayama V4739 Sgr Pereira (Portogal) V709 Cep MISAO V4740 Sgr Pereira (Portogal) Liller (Chile) V1039 Cen Liller (Chile) V2540 Oph Haseda Nakamura V4741 Sgr Liller (Chile) V4742 Sgr Liller (Chile) V4743 Sgr Haseda V4744 Sgr Tabur (Australia) V4745 Sgr Brown (Australia) Yamamoto V2573 Oph Takao Tabur (Australia) V475 Sct Nishimura V5113 Sgr Brown (Australia) DE Cir Liller (Chile) V5114 Sgr Nishimura Nakamura Liller (Chile) V2574 Oph Takao Nakamura V1186 Sco ASAS-III (Chile) V1187 Sco Takao V574 Pup Tago Sakurai V2361 Cyg Nishimura

Supernovae: advanced recently SN 2002ap: Win-Win collaboration discovery 1/ (Y. Hirose) discovery 1/ (Y. Hirose) confirm: (R. Kushida) confirm: (R. Kushida) announcement:30.80 (IAUC 7810) announcement:30.80 (IAUC 7810) spectroscopy: 31.4 (Gunma/Bisei) spectroscopy: 31.4 (Gunma/Bisei) 30.9 (ESO WHT), 30.9 (ESO WHT), 31 (Wise) 31 (Wise)

SN 2006jc: another win-win K. Itagaki ASJ Discovery Award

Activity other than discovery Active observation for a long period Active observation for a long period Detection & quick reporting of transient objects Detection & quick reporting of transient objects New Award: the ASJ Award for the Outstanding Achivement by Amateur New Award: the ASJ Award for the Outstanding Achivement by Amateur