List of Mercury-crossing minor planets

A Mercury crosser is an asteroid whose orbit crosses that of Mercury. The Mercury crossers proper have aphelia outside Mercury's (0.4667 AU) and perihelia inside Mercury's (0.3075 AU), whereas those listed here as outer grazers have perihelia within Mercury's aphelion but not within its perihelion. All have semi-major axes larger than Mercury's, and hence there are no inner grazers.

Mercury crossers

Mercury crossers proper have aphelia outside Mercury's (0.4667 AU) and perihelia inside Mercury's (0.3075 AU). As of May 2012, there are 191 Mercury crossers known. Values have been rounded to three decimals.

Designation number	Name	Perihelion (AU)	Semi-major axis (AU)	Aphelion (AU)	Inclination (°)	Eccentricity	Orbit class	Notes
137924	2000 BD19	0.092	0.876	1.661	25.689	0.8950	Aten	Has the smallest perihelion of any numbered asteroid.
	2007 EB26	0.116	0.548	0.980	8.478	0.7880	Atira	Has the second-smallest semi-major axis of any known object in the Solar System, after Mercury
276033	2002 AJ129	0.117	1.371	2.625	15.494	0.9149	Apollo	Has the second-smallest perihelion of any numbered asteroid.
3200	Phaethon	0.140	1.271	2.403	22.210	0.8901	Apollo	Has the smallest perihelion of any named asteroid.
89958	2002 LY45	0.187	1.642	3.097	9.968	0.8864	Apollo
1566	Icarus	0.187	1.078	1.969	22.828	0.8268	Apollo	First Mercury crosser to have been discovered.
5786	Talos	0.187	1.081	1.976	23.235	0.8268	Apollo
66391	1999 KW4	0.200	0.642	1.084	38.888	0.6884	Aten
66253	1999 GT3	0.216	1.334	2.452	19.514	0.8378	Apollo
85953	1999 FK21	0.219	0.739	1.258	12.602	0.7031	Aten
40267	1999 GJ4	0.257	1.339	2.421	34.533	0.8082	Apollo
66063	1998 RO1	0.277	0.991	1.704	22.675	0.7200	Aten
87684	2000 SY2	0.307	0.859	1.411	19.232	0.6428	Aten
89958	2002 LY45	0.187	1.642	3.097	9.968	0.8864	Apollo

Mercury grazers

All Mercury grazers have semi-major axes larger than Mercury's (0.3871 AU), and hence are outer grazers, i.e. have perihelia within Mercury's aphelion (0.4667 AU) but not within its perihelion (0.3075 AU). As of May 2012, there are 409 Mercury grazers known. Values have been rounded to three decimals.

Designation number	Name	Perihelion (AU)	Semi-major axis (AU)	Aphelion (AU)	Inclination (°)	Eccentricity	Orbit class	Notes
16960	1998 QS52	0.313	2.203	4.093	17.560	0.8577	Apollo
85989	1999 JD6	0.324	0.883	1.441	17.054	0.6328	Aten
68348	2001 LO7	0.339	2.152	3.964	25.478	0.8426	Apollo
86667	2000 FO10	0.348	0.859	1.370	14.286	0.5948	Aten
2212	Hephaistos	0.358	2.167	3.975	11.741	0.8348	Apollo
66400	1999 LT7	0.366	0.855	1.345	9.065	0.5725	Aten
37655	Illapa	0.366	1.478	2.590	17.994	0.7524	Apollo
88213	2001 AF2	0.386	0.954	1.522	17.812	0.5952	Aten
	2008 UU1	0.401	1.608	2.814	12.057	0.7506	Apollo
66146	1998 TU3	0.406	0.787	1.168	5.413	0.4839	Aten
24443	2000 OG	0.411	2.310	4.210	25.822	0.8223	Apollo
5143	Heracles	0.418	1.834	3.250	9.033	0.7721	Apollo
33342	1998 WT24	0.418	0.718	1.019	7.343	0.4180	Aten
5660	1974 MA	0.424	1.786	3.147	38.052	0.7623	Apollo
322756	2001 CK32	0.448	0.725	1.0003	8.132	0.382	Aten	Temporary horseshoe librator of Venus
	2002 VE68	0.427	0.724	1.021	9.006	0.4104	Aten	Temporary quasi-satellite of Venus
	2012 XE133	0.410	0.723	1.036	6.711	0.433	Aten	Temporary horseshoe librator of Venus
88254	2001 FM129	0.438	1.182	1.926	1.524	0.6296	Apollo
2101	Adonis	0.442	1.875	3.307	1.333	0.7641	Apollo
3838	Epona	0.448	1.505	2.561	29.239	0.7020	Apollo
87309	2000 QP	0.455	0.847	1.240	34.743	0.4631	Aten
2340	Hathor	0.464	0.844	1.224	5.856	0.4498	Aten

See also

• List of Venus-crossing minor planets
• List of Earth-crossing minor planets
• List of Mars-crossing minor planets
• List of Jupiter-crossing minor planets
• List of Saturn-crossing minor planets
• List of Uranus-crossing minor planets
• List of Neptune-crossing minor planets

External links

• Very Close Approaches (<0.01 A.U.) of PHAs to Mercury 1800–2200
• Upcoming Close Approaches (<0.10 A.U.) of Near-Earth Objects to Mercury
• Planetary Close Encounters for the next 200 years