Masaru Arai
{| class="wikitable floatright" style="font-size: 0.9em; width: 270px;" |+ Minor planets discovered: 45 |- | ''see '' |}is a Japanese amateur astronomer and a discoverer of minor planets and comets.
He is credited by the Minor Planet Center with the discovery of 45 minor planets during 1988–1991, all in collaboration with astronomer Hiroshi Mori. On 5 January 1991, he has also discovered Comet Arai, .
The main-belt asteroid 21082 Araimasaru, discovered by Tsutomu Hioki and Shuji Hayakawa at Okutama in 1991, was named in his honor. Naming citation was published on 6 January 2003 (). Provided by Wikipedia
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1by Hisashi Urushihara, Yuko Doi, Masaru Arai, Toshiyuki Matsunaga, Yosuke Fujii, Naoko Iino, Takashi Kawamura, Koji KawakamiGet full text
Published 2011-01-01
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2by Koichi Nagashima, MD, PhD, Yasuo Okumura, MD, PhD, Ryuta Watanabe, MD, Masaru Arai, MD, Yuji Wakamatsu, MD, Ichiro Watanabe, MD, PhDGet full text
Published 2018-02-01
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3by Toshiko Nakai, Yukitoshi Ikeya, Hiroaki Mano, Rikitake Kogawa, Ryuta Watanabe, Masaru Arai, Yoshihiro Aizawa, Sayaka Kurokawa, Kimie Ohkubo, Daisuke Kitano, Koichi Nagashima, Yasuo OkumuraGet full text
Published 2021-01-01
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4by Koyuru Monno, Yasuo Okumura, Yuki Saito, Yoshihiro Aizawa, Koichi Nagashima, Masaru Arai, Ryuta Watanabe, Yuji Wakamatsu, Naoto Otsuka, Shunichi Yoda, Takafumi Hiro, Ichiro Watanabe, Atsushi HirayamaGet full text
Published 2018-12-01
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5by Akimasa Yamada, Naoki Hashimoto, Hidesato Fujito, Takumi Hatta, Yuki Saito, Naoto Otsuka, Yuji Wakamatsu, Masaru Arai, Ryuta Watanabe, Sayaka Kurokawa, Daisuke Kitano, Koichi Nagashima, Shunichi Yoda, Yasuo OkumuraGet full text
Published 2021-05-01
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6by Ryuta Watanabe, Yasuo Okumura, Koichi Nagashima, Kazuki Iso, Keiko Takahashi, Masaru Arai, Yuji Wakamatsu, Sayaka Kurokawa, Kimie Ohkubo, Toshiko Nakai, Shunichi Yoda, Ichiro Watanabe, Atsushi Hirayama, Kazumasa Sonoda, Toshimasa TosakaGet full text
Published 2018-10-01
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7by Wakako Shinahara, Etsuhisa Takahashi, Takako Sawabuchi, Masaru Arai, Nobuo Hirotsu, Yoshio Takasaki, Shizuo Shindo, Kyoko Shibao, Takashi Yokoyama, Kiyoshi Nishikawa, Masahiro Mino, Minako Iwaya, Yuji Yamashita, Satoshi Suzuki, Dai Mizuno, Hiroshi KidoGet full text
Published 2013-01-01
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9by Rikitake Kogawa, MD, Yasuo Okumura, MD, Ichiro Watanabe, MD, Koichi Nagashima, MD, Keiko Takahashi, MD, Kazuki Iso, MD, Ryuta Watanabe, MD, Masaru Arai, MD, Sayaka Kurokawa, MD, Kimie Ohkubo, MD, Toshiko Nakai, MD, Atsushi Hirayama, MD, Kazumasa Sonoda, MD, Toshimasa Tosaka, MDGet full text
Published 2017-10-01
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10by Naoko Sasaki, MD, Ichiro Watanabe, MD, Yasuo Okumura, MD, Koichi Nagashima, MD, Rikitake Kogawa, MD, Kazumasa Sonoda, MD, Kazuki Iso, MD, Keiko Takahashi, MD, Masaru Arai, MD, Ryuta Watanabe, MD, Sayaka Kurokawa, MD, Kimie Ohkubo, MD, Toshiko Nakai, MD, Atsushi Hirayama, MD, Mizuki Nikaido, BSGet full text
Published 2017-06-01
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11by Naoko Yamaguchi, MD, PhD, Yasuo Okumura, MD, PhD, Ichiro Watanabe, MD, PhD, Koichi Nagashima, MD, PhD, Keiko Takahashi, MD, Kazuki Iso, MD, Ryuta Watanabe, MD, Masaru Arai, MD, Sayaka Kurokawa, MD, Kimie Ohkubo, MD, PhD, Toshiko Nakai, MD, PhD, Atsushi Hirayama, MD, PhDGet full text
Published 2017-12-01
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