ϑ҈ꗗ (List of Observers) - 2019 Apparition
Observer | Location | Telescope | Days | | Disks | Maps | Animations | Others | Measurements |
Akutsu, Tomio | Ibaraki, Japan | 40cm Refl. | 45 | | 240 | | | | | 2 | 205 |
Asada, Hideto | Kyoto, Japan | 31cm Refl. | 11 | | 24 | | | | | | | | |
Adachi, Makoto | Shiga, Japan | 31cm Refl. | 60 | * | 121 | | | | | | | | |
Ishibashi, Tsutomu | Kanagawa, Japan | 31cm Refl. | 40 | | 76 | | | | | | | 292 |
Einaga, Hideo | Hyogo, Japan | 30cm Refl. | 100 | | 338 | 47 | | | | | 943 |
Ohsugi, Tadao | Ishikawa, Japan | 30cm Refl. | 42 | | 44 | | | | | | | 424 |
Ota, Satoshi | Okinawa, Japan | 30cm Refl. | 5 | | 11 | | | | | | | 69 |
Oyamada, Hiroyuki | Tokyo, Japan | 20cm Refl. | 18 | | 20 | | | | | | | | |
Karasawa, Hideyuki | Tokyo, Japan | 30cm Refl. | 4 | | 4 | | | | | | | | |
Kanno, Seiichi | Yamagata, Japan | 30cm Refl. | 21 | | 119 | | | | | | | 25 |
Kumamori, Teruaki | Osaka, Japan | 35cm SC | 112 | | 166 | | | | | | | 2913 |
Suzuki, Kunihiko | Kanagawa, Japan | 19cm Refl. | 101 | | 203 | | | | | | | 2187 |
Suzuki, Takashi | Tokyo, Japan | 18cm MC | 11 | | 14 | | | | | | | 93 |
Takimoto, Ikuo | Kagawa, Japan | 31cm Refl. | 4 | | 11 | | | | | | | | |
Nakai, Kenji | Hiroshima, Japan | 28cm SC | 7 | | 8 | | | | | | | 27 |
Hatanaka, Akitoshi | Mie, Japan | 40cm Refl. | 10 | | 22 | | | | | | | | |
Hirabayashi, Isamu | Tokyo, Japan | 25cm Refl. | 2 | | 3 | | | | | | | 33 |
Fukuyama, Koki | Nara, Japan | 20cm SC | 3 | | 10 | | | | | | | | |
Horiuchi, Tadashi | Kyoto, Japan | 40cm Refl. | 18 | | 48 | | | | | | | 463 |
Horikawa, Kuniaki | Kanagawa, Japan | 30cm Refl. | 132 | * | 216 | | | | | | | 628 |
Mishina, Toshiro | Kanagawa, Japan | 20cm Refl. | 23 | | 40 | | | | | | | | |
Miyazaki, Isao | Okinawa, Japan | 40cm Refl. | 110 | | 187 | | | | | | | 3174 |
Yamazaki, Akihiro | Tokyo, Japan | 40cm Refl. | 6 | | 12 | | | | | | | 11 |
Yunoki, Kenkichi | Osaka, Japan | 35cm SC | 3 | | 6 | | | | | | | | |
Yoshida, Tomoyuki | Tochigi, Japan | 30cm Refl. | 10 | | 17 | | | | | | | 50 |
Yoneyama, Seiichi | Kanagawa, Japan | 32cm Refl. | 34 | | 99 | | | | | | | 100 |
Abel, Paul | UK | 50cm/20cm Refl./35cm SC | 7 | * | 8 | | | | | | | | |
Carvalho, Fabio | Brazil | 40cm Refl. | 12 | | 35 | | | | | | | 161 |
Delcroix, Marc | France | 32cm/106cm Refl. | 7 | | 27 | | | | | | | 29 |
Foster, Clyde | South Africa | 35cm SC | 184 | | 646 | | | | | | | 6620 |
Go, Christopher | Philippines | 35cm SC | 80 | | 296 | | | | | 2 | 2567 |
Lamy, George | USA | 35cm SC | 17 | | 22 | | | | | | | 280 |
Maxson, Paul | USA | 25cm MC | 177 | | 513 | | | | | | | 1115 |
Olivetti, Tiziano | Thailand | 50cm Refl. | 25 | | 62 | | | | | | | 858 |
Pellier, Christophe | France | 31cm Refl. | 6 | | 11 | | | | | | | 62 |
Phillips, Jim | USA | 25cm MC | 1 | | 1 | | | | | | | | |
Wesley, Anthony | Australia | 33cm Refl. | 112 | | 167 | | | | | | | 2295 |
Total | | | | | 3847 | 47 | | | 4 | 25624 |
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| * | visual observation |