List of Apollo asteroids

The Apollo asteroid group compared to the orbits of the terrestrial planets of the Solar System.
      Mars (M)
      Venus (V)       Mercury (H)		       Sun
      Apollo asteroids
      Earth (E)

The Apollo asteroids are a group of near-Earth asteroids named after 1862 Apollo, the first asteroid of this group which was discovered by German astronomer Karl Reinmuth in the 1930s. They are Earth-crosser asteroids that have orbital semi-major axis greater than that of the Earth (> 1 AU) but perihelion distances less than the Earth's aphelion distance (q < 1.017 AU).[1]

As of August 2015, the Apollo asteroid group includes a total of 6,923 known asteroids[2] of which 991 are currently numbered.[3] Asteroids are not numbered until they have been observed at two or more oppositions. More than a thousand Apollo asteroids are large enough and may get close enough to Earth to be known as potentially hazardous asteroids.[4]

The closer their semi-major axis is to Earth's, the less eccentricity is needed for the orbits to cross. The February 15, 2013 Chelyabinsk meteor that exploded over the city of Chelyabinsk in the southern Urals region of Russia, injuring an estimated one thousand people with flying glass from broken windows, was an Apollo class asteroid.[5][6]

List

The largest known Apollo asteroid is 1866 Sisyphus, with a diameter of about 8.5 km. Examples of known Apollo asteroids include:

Name Year Discoverer A
2013 FW13 2013 CSS
2013 RH74 2013 CSS
2011 MD 2011 LINEAR
2011 EO40 2011 CSS–Mount Lemmon Survey
2010 AL30 2010 LINEAR
2009 WM1 2009 CSS
2009 DD45 2009 Siding Spring Observatory, Australia
(386454) 2008 XM 2008 LINEAR
2008 TC3 2008 CSS
2008 FF5 2008 CSS–Mount Lemmon Survey
2007 VK184 2007 CSS
2007 TU24 2007 CSS
2007 WD5 2007 CSS
2007 OX 2007 CSS–Mount Lemmon Survey
(277810) 2006 FV35 2006 Spacewatch
(394130) 2006 HY51 2006 LINEAR
(292220) 2006 SU49 2006 Spacewatch
(308635) 2005 YU55 2005 R. S. McMillan, Steward Observatory, Kitt Peak, USA
2005 HC4 2005 LONEOS
2005 WY55 2005
(374158) 2004 UL 2004 LINEAR
2004 XP14 2004 LINEAR
(444004) 2004 AS1 2004 LINEAR
2003 RW11 2003 James Whitney Young
2003 BV35 2003 James Whitney Young
(89958) 2002 LY45 2002 LINEAR
(179806) 2002 TD66 2002 LINEAR
54509 YORP 2000 LINEAR
(137108) 1999 AN10 1999 LINEAR
101955 Bennu 1999 LINEAR
1998 KY26 1998 Spacewatch
(433953) 1997 XR2 1997 LINEAR
65803 Didymos 1996 Spacewatch
69230 Hermes 1937 Karl Reinmuth
(53319) 1999 JM8 1999 LINEAR
(52760) 1998 ML14 1998 LINEAR
(35396) 1997 XF11 1997 Spacewatch
25143 Itokawa 1998 LINEAR
(136617) 1994 CC 1994 Spacewatch
(175706) 1996 FG3 1996 R. H. McNaught, Siding Spring Observatory, Australia
6489 Golevka 1991 Eleanor F. Helin
4769 Castalia 1989 Eleanor F. Helin
4660 Nereus 1982 Eleanor F. Helin
4581 Asclepius 1989 Henry E. Holt, Norman G. Thomas
4486 Mithra 1987 Eric Elst, Vladimir Shkodrov
14827 Hypnos 1986 Carolyn S. Shoemaker, Eugene Merle Shoemaker
4197 Morpheus 1982 Eleanor F. Helin, Eugene Merle Shoemaker
4183 Cuno 1959 Cuno Hoffmeister
4179 Toutatis 1989 Christian Pollas
4015 Wilson–Harrington   1979 Eleanor F. Helin
3200 Phaethon 1983 Simon F. Green, John K.Davies / IRAS
2063 Bacchus 1977 Charles T. Kowal
1866 Sisyphus 1972 Paul Wild
1620 Geographos 1951 Albert George Wilson, Rudolph Minkowski
(29075) 1950 DA 1950 Carl A. Wirtanen
1566 Icarus 1949 Walter Baade
1685 Toro 1948 Carl A. Wirtanen
2101 Adonis 1936 Eugène Joseph Delporte
1862 Apollo 1932 Karl Reinmuth
(A) Discoverer:
LINEAR: Lincoln Near-Earth Asteroid Research
CSS : Catalina Sky Survey
Spacewatch, on Kitt Peak, near Tucson, Arizona[7]

See also

References

  1. ↑ Weisstein, Eric. "Apollo Asteroid". Wolfram Research. Retrieved 27 February 2013.
  2. ↑ "NEO Discovery Statistics". Retrieved 2015-08-10.
  3. ↑ "numbered objects and orbital class (APO)". JPL Solar System Dynamics. Retrieved 2015-08-10.
  4. ↑ "JPL Small-Body Database Search Engine: PHAs and orbital class (APO)". JPL Solar System Dynamics. Retrieved 2015-08-10.
  5. ↑ Cantor, Matt (26 February 2013). "Scientists figure out Russia meteor's origin Ron Jeffery". USA Today.
  6. ↑ http://www.newscientist.com/article/dn23213-russian-meteor-traced-to-apollo-asteroid-family.html
  7. ↑ The Spacewatch Project, Arizona Board of Regents, 2010

External links

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