(5407) 1992 AX

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(5407) 1992 AX
Discovery[1]
Discovered by Seiji Ueda and Hiroshi Kaneda
Discovery site Kushiro, Hokkaidō
Discovery date January 4, 1992
Designations
Alternative names 1987 BH2
Orbital characteristics[1][2]
Epoch November 4, 2013
Aphelion 351.38 Gm (2.3488 AU)
Perihelion 198.56 Gm (1.3273 AU)
Semi-major axis 274.96 Gm (1.8380 AU)
Eccentricity 0.2779
Orbital period 2.49 yr
Mean anomaly 192.99°
Inclination 11.389°
Longitude of ascending node 117.77°
Argument of perihelion 108.72°
Known satellites 1
Proper orbital elements
Proper mean motion 0.3955 deg / yr
Proper orbital period 910.2402 yr
(332465.234 d)
Physical characteristics
Dimensions 4 km (2.5 mi)[3]
Sidereal rotation period 2.5488 h[1]
Albedo 0.16[2]
Spectral type S[1]
Absolute magnitude (H) 13.8[1]

    (5407) 1992 AX is a Mars-crossing minor planet. It was discovered by Seiji Ueda and Hiroshi Kaneda in Kushiro, Hokkaidō, on January 4, 1992.

    Mars-Crossing

    1992 AX makes occasional close approaches to Mars. Its next close approach, on January 22, 2027, will bring it 11,260,000 km (0.0753 AU) from Mars.

    Moon

    1992 AX has one natural satellite, S/1997 (5407) 1. However, the true presence of a moon is still considered inconclusive.[2] If it exists, the moon completes one orbit around 1992 AX every 13.5196 hours at a distance of 6.8 km. S/1997 (5407) 1 is 1.2 km wide.[2] From the surface of 1992 AX, S/1997 (5407) 1 would have an angular diameter of roughly 14.3°.[lower-alpha 1] For comparison, the Sun appears to be 0.5° from Earth.

    Gallery

    Orbit of 1992 AX

    See also

    Notes

    1. ↑ Calculated by solving the equation \scriptstyle{\mathrm{tan}\left(\frac{\theta}{2}\right) = \frac{\mathrm{radius~of~moon}}{\mathrm{distance~from~surface~of~asteroid~to~center~of~moon}}}.

    References

    1. ↑ 1.0 1.1 1.2 1.3 1.4 "(5407) 1992 AX". JPL Small-Body Database. Jet Propulsion Laboratory. SPK-ID: 2005407. 
    2. ↑ 2.0 2.1 2.2 2.3 Johnston, W.M. (September 1, 2005). "(5407) 1992 AX". Johnston Archive. Retrieved 27 November 2013. 
    3. ↑ "Two-Period Lightcurves of 1996 FG 3, 1998 PG, and (5407) 1992 AX: One Probable and Two Possible Binary Asteroids". The Icarus Journal 146 (1): 190–203. July 2000. doi:10.1006/icar.2000.6375. 
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