Masaru Arai

Masaru Arai (新井 優, Arai Masaru; born 1952) is a Japanese amateur astronomer and a discoverer of minor planets and comets.^[2]

Minor planets discovered: 45^[1]

see § List of discovered minor planets

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.^[1] On 5 January 1991, he has also discovered Comet Arai, C/1991 A2.^[3][4]

The main-belt asteroid 21082 Araimasaru, discovered by Tsutomu Hioki and Shuji Hayakawa at Okutama in 1991, was named in his honor.^[2] Naming citation was published on 6 January 2003 (M.P.C. 47301).^[5]

List of discovered minor planets

See also: Category:Discoveries by Masaru Arai

3823 Yorii	10 March 1988	list[A]
3996 Fugaku	5 December 1988	list[A]
4262 DeVorkin	5 February 1989	list[A]
4291 Kodaihasu	2 November 1989	list[A]
4495 Dassanowsky	6 November 1988	list[A]
4901 Ó Briain	3 November 1988	list[A]
(5732) 1988 WC	29 November 1988	list[A]
(5746) 1991 CK	5 February 1991	list[A]
(5913) 1990 BU	21 January 1990	list[A]
6299 Reizoutoyoko	5 December 1988	list[A]
(6325) 1991 EA1	14 March 1991	list[A]
6380 Gardel	10 February 1988	list[A]
(6638) 1989 CA	2 February 1989	list[A]
(6703) 1988 CH	10 February 1988	list[A]
(6704) 1988 CJ	10 February 1988	list[A]
6709 Hiromiyuki	2 February 1989	list[A]
(6823) 1988 ED1	12 March 1988	list[A]
(6900) 1988 XD1	2 December 1988	list[A]

(7409) 1990 BS	21 January 1990	list[A]
(7417) 1990 YE	19 December 1990	list[A]
(7522) 1991 AJ	9 January 1991	list[A]
(7570) 1989 CP	5 February 1989	list[A]
(7576) 1990 BN	21 January 1990	list[A]
(7643) 1988 VQ1	6 November 1988	list[A]
(8484) 1988 VM2	10 November 1988	list[A]
(8506) 1991 CN	5 February 1991	list[A]
(9952) 1991 AK	9 January 1991	list[A]
10776 Musashitomiyo	12 February 1991	list[A]
(11038) 1989 EE1	8 March 1989	list[A]
11515 Oshijyo	12 February 1991	list[A]
(12255) 1988 XR1	7 December 1988	list[A]
13017 Owakenoomi	18 March 1988	list[A]
(15737) 1991 CL	5 February 1991	list[A]
(16431) 1988 VH1	6 November 1988	list[A]
(16432) 1988 VL2	10 November 1988	list[A]
(16526) 1991 DC	17 February 1991	list[A]

(19979) 1989 VJ	2 November 1989	list[A]
(20001) 1991 CM	5 February 1991	list[A]
(21017) 1988 VP	3 November 1988	list[A]
(23479) 1991 CG	5 February 1991	list[A]
(39537) 1990 VV2	12 November 1990	list[A]
(43773) 1989 AJ	4 January 1989	list[A]
(48436) 1989 VK	2 November 1989	list[A]
(52269) 1988 CU	13 February 1988	list[A]
(65677) 1989 EB1	1 March 1989	list[A]
Co-discovery made with: A H. Mori