Asteroids and trans-Neptunian objects by discovery date

133 asteroids and trans-Neptunian objects on Codexery, ordered by discovery date from 3034 Climenhaga (24 September 1917) to C/2023 P1 (Nishimura) (12 August 2023). Every figure comes from the entry's cited source article, and each name links to its full Codexery page.

133 entries from 4 codexes · Last updated 2026-09-26 · Click a column heading to sort

				Source
1	3034 Climenhaga Notable Asteroids, Part 2	24 September 1917	M. F. Wolf	source
2	2623 Zech Notable Asteroids, Part 2	22 September 1919	K. Reinmuth	source
3	Comet Ryves Amateur Astronomy, Part 3	10 August 1931	Percy Mayow Ryves	source
4	1862 Apollo Notable Asteroids, Part 2	24 April 1932	K. Reinmuth	source
5	2486 Metsähovi Notable Asteroids, Part 2	22 March 1939	Y. Vaisala	source
6	C/1939 H1 (Jurlof–Achmarof–Hassel) Amateur Astronomy, Part 3	15 April 1939	Olaf Hassel	source
7	1798 Watts Notable Asteroids, Part 2	4 April 1949	Indiana University	source
8	2044 Wirt Notable Asteroids, Part 2	8 November 1950	C. A. Wirtanen	source
9	3868 Mendoza Notable Asteroids, Part 2	24 September 1960	C. J. van Houten	source
10	6615 Plutarchos Notable Asteroids, Part 3	17 October 1960	C. J. van Houten	source
11	C/1962 C1 (Seki–Lines) Amateur Astronomy, Part 3	4 February 1962	Tsutomu Seki	source
12	C/1963 A1 (Ikeya) Amateur Astronomy, Part 3	2 January 1963	Kaoru Ikeya	source
13	C/1964 N1 (Ikeya) Amateur Astronomy, Part 3	3 July 1964	Kaoru Ikeya	source
14	1727 Mette Notable Asteroids, Part 2	25 January 1965	A. D. Andrews	source
15	Comet Ikeya–Seki Amateur Astronomy, Part 3	18 September 1965	Kaoru Ikeya	source
16	2754 Efimov Notable Asteroids, Part 2	13 August 1966	T. Smirnova	source
17	1803 Zwicky Notable Asteroids, Part 2	6 February 1967	P. Wild	source
18	1830 Pogson Notable Asteroids, Part 2	17 April 1968	P. Wild	source
19	C/1969 T1 (Tago–Sato–Kosaka) Amateur Astronomy, Part 3	10 October 1969	Akihiko Tago	source
20	2047 Smetana Notable Asteroids, Part 2	26 October 1971	L. Kohoutek	source
21	1866 Sisyphus Notable Asteroids, Part 2	5 December 1972	P. Wild	source
22	2006 Polonskaya Notable Asteroids, Part 2	22 September 1973	N. Chernykh	source
23	2691 Sérsic Notable Asteroids, Part 2	18 May 1974	Felix Aguilar Obs	source
24	2074 Shoemaker Notable Asteroids, Part 2	17 October 1974	E. F. Helin	source
25	7369 Gavrilin Notable Asteroids, Part 3	13 January 1975	T. Smirnova	source
26	2131 Mayall Notable Asteroids, Part 2	September 3, 1975	A. R. Klemola	source
27	C/1975 T2 (Suzuki–Saigusa–Mori) Amateur Astronomy, Part 3	5 October 1975	Shigenori Suzuki	source
28	2207 Antenor Notable Asteroids, Part 2	19 August 1977	N. Chernykh	source
29	2449 Kenos Notable Asteroids, Part 2	8 April 1978	W. Liller	source
30	3703 Volkonskaya Notable Asteroids, Part 2	9 August 1978	L. Chernykh	source
31	3073 Kursk Notable Asteroids, Part 2	24 September 1979	N. Chernykh	source
32	11264 Claudiomaccone Notable Asteroids, Part 3	16 October 1979	N. Chernykh	source
33	2478 Tokai Notable Asteroids, Part 2	4 May 1981	T. Furuta	source
34	3169 Ostro Notable Asteroids, Part 2	4 June 1981	E. Bowell	source
35	3309 Brorfelde Notable Asteroids, Part 2	28 January 1982	K. Jensen	source
36	2873 Binzel Notable Asteroids, Part 2	28 March 1982	E. Bowell	source
37	2815 Soma Notable Asteroids, Part 2	15 September 1982	E. Bowell	source
38	4435 Holt Notable Asteroids, Part 3	13 January 1983	C. Shoemaker	source
39	7225 Huntress Notable Asteroids, Part 3	22 January 1983	E. Bowell	source
40	C/1983 J1 (Sugano–Saigusa–Fujikawa) Amateur Astronomy, Part 3	8 May 1983	Matsuo Sugano	source
41	3841 Dicicco Notable Asteroids, Part 2	4 November 1983	B. A. Skiff	source
42	3671 Dionysus Notable Asteroids, Part 2	27 May 1984	C. S. Shoemaker	source
43	3905 Doppler Notable Asteroids, Part 2	28 August 1984	A. Mrkos	source
44	3873 Roddy Notable Asteroids, Part 2	21 November 1984	C. Shoemaker	source
45	4440 Tchantchès Notable Asteroids, Part 3	23 December 1984	F. Dossin	source
46	6084 Bascom Notable Asteroids, Part 3	12 February 1985	C. S. Shoemaker	source
47	5426 Sharp Notable Asteroids, Part 3	16 February 1985	C. Shoemaker	source
48	4786 Tatianina Notable Asteroids, Part 3	13 August 1985	N. Chernykh	source
49	3673 Levy Notable Asteroids, Part 2	22 August 1985	E. Bowell	source
50	(6265) 1985 TW3 Notable Asteroids, Part 3	11 October 1985	T. F. Fric	source
51	5899 Jedicke Notable Asteroids, Part 3	9 January 1986	C. Shoemaker	source
52	3951 Zichichi Notable Asteroids, Part 2	12 February 1986	San Vittore Obs	source
53	4765 Wasserburg Notable Asteroids, Part 3	5 May 1986	C. Shoemaker	source
54	3782 Celle Notable Asteroids, Part 2	3 October 1986	P. Jensen	source
55	4607 Seilandfarm Notable Asteroids, Part 3	25 November 1987	K. Endate	source
56	4492 Debussy Notable Asteroids, Part 3	17 September 1988	E. W. Elst	source
57	5474 Gingasen Notable Asteroids, Part 3	3 December 1988	T. Fujii	source
58	6708 Bobbievaile Notable Asteroids, Part 3	4 January 1989	R. H. McNaught	source
59	5905 Johnson Notable Asteroids, Part 3	11 February 1989	E. F. Helin	source
60	(7335) 1989 JA Notable Asteroids, Part 3	1 May 1989	E. F. Helin	source
61	4674 Pauling Notable Asteroids, Part 3	2 May 1989	E. F. Helin	source
62	4868 Knushevia Notable Asteroids, Part 3	27 October 1989	E. F. Helin	source
63	5477 Holmes Notable Asteroids, Part 3	27 October 1989	E. F. Helin	source
64	4951 Iwamoto Notable Asteroids, Part 3	21 January 1990	Y. Mizuno	source
65	5481 Kiuchi Notable Asteroids, Part 3	15 February 1990	K. Endate	source
66	5261 Eureka Notable Asteroids, Part 3	20 June 1990	David H. Levy	source
67	6244 Okamoto Notable Asteroids, Part 3	20 August 1990	T. Seki	source
68	(5646) 1990 TR Notable Asteroids, Part 3	11 October 1990	S. Ueda	source
69	15268 Wendelinefroger Notable Asteroids, Part 3	18 November 1990	E. W. Elst	source
70	8026 Johnmckay Notable Asteroids, Part 3	8 May 1991	E. F. Helin	source
71	5143 Heracles Notable Asteroids, Part 3	7 November 1991	C. Shoemaker	source
72	15760 Albion Trans-Neptunian Objects	1992	D. C. Jewitt	source
73	7088 Ishtar Notable Asteroids, Part 3	1 January 1992	C. Shoemaker	source
74	8373 Stephengould Notable Asteroids, Part 3	1 January 1992	Carolyn S. Shoemaker	source
75	(5407) 1992 AX Notable Asteroids, Part 3	4 January 1992	S. Ueda	source
76	7187 Isobe Notable Asteroids, Part 3	30 January 1992	E. F. Helin	source
77	9617 Grahamchapman Notable Asteroids, Part 3	17 March 1993	UESAC	source
78	9069 Hovland Notable Asteroids, Part 3	16 July 1993	E. F. Helin	source
79	15810 Arawn Trans-Neptunian Objects	12 May 1994	M. J. Irwin	source
80	7958 Leakey Notable Asteroids, Part 3	5 June 1994	C. S. Shoemaker	source
81	141P/Machholz Amateur Astronomy, Part 3	13 August 1994	Donald E. Machholz	source
82	8306 Shoko Notable Asteroids, Part 3	24 February 1995	A. Nakamura	source
83	8116 Jeanperrin Notable Asteroids, Part 3	17 April 1996	E. W. Elst	source
84	58534 Logos Trans-Neptunian Objects	4 February 1997	Maunakea Obs	source
85	79360 Sila–Nunam Trans-Neptunian Objects	4 February 1997	J. X. Luu	source
86	10208 Germanicus Notable Asteroids, Part 3	30 August 1997	A. Vagnozzi	source
87	C/1998 P1 (Williams) Amateur Astronomy, Part 3	10 August 1998	Peter Francis Williams	source
88	(26308) 1998 SM165 Trans-Neptunian Objects	16 September 1998	N. Danzl	source
89	1998 WW31 Trans-Neptunian Objects	18 November 1998 /	M. W. Buie	source
90	19521 Chaos Trans-Neptunian Objects	19 November 1998	Deep Ecliptic Survey	source
91	C/1999 H1 (Lee) Amateur Astronomy, Part 3	16 April 1999	Steven Lee	source
92	53311 Deucalion Trans-Neptunian Objects	18 April 1999	DES	source
93	(612095) 1999 OJ4 Trans-Neptunian Objects	18 July 1999	Mauna Kea Obs	source
94	66652 Borasisi Trans-Neptunian Objects	September 1999	C. Trujillo	source
95	47171 Lempo Trans-Neptunian Objects	1 October 1999	Eric P. Rubenstein	source
96	38628 Huya Trans-Neptunian Objects	10 March 2000	–	source
97	(60621) 2000 FE8 Trans-Neptunian Objects	27 March 2000	J. Kavelaars	source
98	20000 Varuna Trans-Neptunian Objects	28 November 2000	Spacewatch	source
99	(82075) 2000 YW134 Trans-Neptunian Objects	26 December 2000	Spacewatch	source
100	28978 Ixion Trans-Neptunian Objects	22 May 2001	Deep Ecliptic Survey	source
101	2001 QW322 Trans-Neptunian Objects	24 August 2001	Canada–France Ecliptic Plane Survey	source
102	148780 Altjira Trans-Neptunian Objects	20 October 2001	–	source
103	(524366) 2001 XR254 Trans-Neptunian Objects	10 December 2001	D. C. Jewitt	source
104	55565 Aya Trans-Neptunian Objects	10 January 2002	–	source
105	42355 Typhon Trans-Neptunian Objects	February 5, 2002	NEAT	source
106	307261 Máni Trans-Neptunian Objects	18 June 2002	Chadwick A. Trujillo	source
107	55637 Uni Trans-Neptunian Objects	30 October 2002	Spacewatch	source
108	78799 Xewioso Trans-Neptunian Objects	10 December 2002	Palomar Obs	source
109	208996 Achlys Trans-Neptunian Objects	13 January 2003	Chad Trujillo	source
110	65489 Ceto Trans-Neptunian Objects	March 22, 2003	C. A. Trujillo	source
111	174567 Varda Trans-Neptunian Objects	21 June 2003	J. A. Larsen	source
112	385446 Manwë Trans-Neptunian Objects	25 August 2003	M. W. Buie	source
113	90568 Goibniu Trans-Neptunian Objects	13 April 2004	NEAT	source
114	C/2004 Q2 (Machholz) Amateur Astronomy, Part 3	27 August 2004	Donald E. Machholz	source
115	120347 Salacia Trans-Neptunian Objects	22 September 2004	H. G. Roe	source
116	474640 Alicanto Trans-Neptunian Objects	6 November 2004	A. C. Becker	source
117	469705 ǂKá̦gára Trans-Neptunian Objects	11 March 2005	Marc Buie	source
118	145451 Rumina Trans-Neptunian Objects	9 September 2005	A. C. Becker	source
119	341520 Mors–Somnus Trans-Neptunian Objects	14 October 2007	S. S. Sheppard	source
120	229762 Gǃkúnǁʼhòmdímà Trans-Neptunian Objects	19 October 2007	M. E. Schwamb	source
121	471143 Dziewanna Trans-Neptunian Objects	13 March 2010	A. Udalski	source
122	P/2010 H2 (Vales) Amateur Astronomy, Part 3	16 April 2010	Jan Vales	source
123	2011 JY31 Trans-Neptunian Objects	4 May 2011	New Horizons KBO Search	source
124	471325 Taowu Trans-Neptunian Objects	31 May 2011	Mount Lemmon Survey	source
125	(523764) 2014 WC510 Trans-Neptunian Objects	8 September 2011	Pan-STARRS 1	source
126	420356 Praamžius Trans-Neptunian Objects	23 January 2012	K. Černis	source
127	PH1b Amateur Astronomy, Part 3	15 October 2012	Planet Hunters	source
128	532037 Chiminigagua Trans-Neptunian Objects	17 March 2013	Scott S. Sheppard	source
129	486958 Arrokoth Trans-Neptunian Objects	26 June 2014	Marc W. Buie	source
130	2014 OS393 Trans-Neptunian Objects	30 July 2014	New Horizons KBO Search	source
131	541132 Leleākūhonua Trans-Neptunian Objects	13 October 2015	D. J. Tholen	source
132	C/2018 V1 (Machholz–Fujikawa–Iwamoto) Amateur Astronomy, Part 3	7 November 2018	Donald Machholz	source
133	C/2023 P1 (Nishimura) Amateur Astronomy, Part 3	12 August 2023	Hideo Nishimura	source

How this list is made

Includes asteroids and trans-Neptunian objects from Codexery codexes where at least 70% of entries are sourced and carry this field; an entry is listed only when the value shown appears in its own cited source article. Entries without a verifiable discovery date are left out rather than estimated. Values are copied from structured data already on each Codexery page and re-checked against the linked source; nothing on this page is estimated or written by a model. Spot an error? Use “Suggest an edit” on the entry’s page.

Asteroids and trans-Neptunian objects by discovery date

How this list is made

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