List of Mercury-crossing minor planets

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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[edit]

Mercury crossers proper have aphelia outside Mercury's (0.4667 AU) and perihelia inside Mercury's (0.3075 AU). As of January 2014, there are 212 Mercury crossers known.[1] Most values have been rounded to three decimals.

Designation
number
Name Perihelion
(AU)
Semi-major
axis
(AU)
Aphelion
(AU)
Inclination
(°)
Eccentricity Orbit
class
Notes
2005 HC4 0.071 1.816 3.562 8.383 0.9609 Apollo Has the smallest perihelion of any known asteroid.[1]
2008 FF5 0.079 2.283 4.487 2.626 0.9653 Apollo Has the second-smallest perihelion of any known asteroid.[1]
2006 HY51 0.081 2.600 5.118 30.515 0.9688 Apollo Has the third-smallest perihelion of any known asteroid.[1]
137924 2000 BD19 0.092 0.876 1.661 25.689 0.8950 Aten Has the smallest perihelion of any numbered asteroid.[1]
374158 2004 UL 0.093 1.266 2.440 23.766 0.9267 Apollo Has the second-smallest perihelion of any numbered asteroid.[1]
386454 2008 XM 0.111 1.222 2.334 5.452 0.9092 Apollo Has the third-smallest perihelion of any numbered asteroid.[1]
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 fourth-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 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
2013 ND15 0.281 0.7235 1.166 4.794 0.6115 Aten First Venus trojan discovered.
87684 2000 SY2 0.307 0.859 1.411 19.232 0.6428 Aten

Mercury grazers[edit]

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.[2] 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[edit]

References[edit]

External links[edit]