2004 JG6

From Academic Kids

2004 JG6
Discovery A (http://cfa-www.harvard.edu/iau/lists/NumberedMPs.html)
Discoverer Brian A. Skiff / LONEOS
Discovery date May 11, 2004
Alternate
designations
  B (http://cfa-www.harvard.edu/iau/MPDes.html)
Category Aten, Apohele,
Mercury-crosser,
Venus-crosser
Orbital elements C (http://asteroid.lowell.edu/)
Epoch October 22, 2004 (JD 2453300.5)
Eccentricity (e) 0.532
Semi-major axis (a) 94.985 Gm (0.635 AU)
Perihelion (q) 44.480 Gm (0.297 AU)
Aphelion (Q) 145.491 Gm (0.973 AU)
Orbital period (P) 184.798 d (0.51 a)
Mean orbital speed 34.58 km/s
Inclination (i) 18.962
Longitude of the
ascending node
(Ω)
37.076
Argument of
perihelion
(ω)
352.935
Mean anomaly (M) 164.532
Physical characteristics
Dimensions 0.5-1.2 km
Mass 1.3-18.01011 kg
Density 2.0? g/cm
Surface gravity 0.0001-0.0003 m/s
Escape velocity 0.0003-0.0006 km/s
Rotation period  ? d
Spectral class  ?
Absolute magnitude 19.00
Albedo 0.10
Mean surface
temperature
~349 K

2004 JG6 (also written 2004 JG6) is an unusual asteroid.

It is the second known Apohele asteroid, which means its entire orbit lies within that of the Earth. Even more significantly, its orbital period is less than that of Venus or any other known asteroids, making it on average the second-closest known object to the Sun, second only to Mercury. 2004 JG6 has an eccentric orbit that crosses the orbits of both Mercury and Venus. It also has the smallest aphelion of any known asteroid.

It was discovered by Brian A. Skiff of the LONEOS project.

External link

http://www.lowell.edu/press_room/releases/recent_releases/2004JG6_rls.html

The minor planets
Vulcanoids | Main belt | Groups and families | Near-Earth objects | Jupiter Trojans
Centaurs | Trans-Neptunians | Damocloids | Comets | Kuiper belt | Oort cloud
(For other objects and regions, see: Binary asteroids, Asteroid moons and the Solar system)
(For a complete listing, see: List of asteroids. For pronunciation, see: Pronunciation of asteroid names.)
fr:(2004) JG6
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