3949 Mach

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3949 Mach
Discovery[1] and designation
Discovered by A. Mrkos
Discovery date October 20, 1985
Designations
Named after Ernst Mach
Alternative names 1985 UL
Minor planet category Main belt
Orbital characteristics[2]
Epoch December 31, 2006 (JD 2454100.5)
Aphelion 341.011 Gm (2.280 AU)
Perihelion 319.566 Gm (2.136 AU)
Semi-major axis 330.288 Gm (2.208 AU)
Eccentricity 0.032
Orbital period 1198.257 d (3.28 a)
Average orbital speed 20.04 km/s
Mean anomaly 0.302°
Inclination 3.778°
Longitude of ascending node 249.955°
Argument of perihelion 304.551°
Physical characteristics
Dimensions ? km
Mass ?×10? kg
Mean density ? g/cm³
Equatorial surface gravity ? m/s²
Equatorial escape velocity ? km/s
Sidereal rotation period ? d
Axial tilt
Pole ecliptic latitude ?
Pole ecliptic longitude ?
Geometric albedo 0.10
Temperature ~187 K
Spectral type ?
Absolute magnitude (H) 13.3

3949 Mach is a minor planet. It was discovered by Antonín Mrkos on October 20, 1985 at the Kleť Observatory in Czech Republic. It is named for physicist Ernst Mach.

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