9949 Brontosaurus

9949 Brontosaurus

Orbit of 9949 Brontosaurus (blue), planets (red) and the Sun (black). The outermost planet visible is Jupiter.
Discovery
Discovered by	E. W. Elst
Discovery date	22 September 1990
Designations
MPC designation	9949 Brontosaurus
Named after	Brontosaurus
Alternative names	1990 SK6, 1978 GT1, 1985 DM1, 1992 BS
Orbital characteristics[1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc	13757 days (37.66 yr)
Aphelion	2.4978881 AU (373.67874 Gm)
Perihelion	2.2115254 AU (330.83949 Gm)
Semi-major axis	2.3547068 AU (352.25912 Gm)
Eccentricity	0.0608065
Orbital period	3.61 yr (1319.8 d)
Mean anomaly	158.9549°
Mean motion	0° 16^m 21.977^s / day
Inclination	7.703259°
Longitude of ascending node	29.84074°
Argument of perihelion	174.51029°
Earth MOID	1.20681 AU (180.536 Gm)
Jupiter MOID	2.4597 AU (367.97 Gm)
Jupiter Tisserand parameter	3.541
Physical characteristics
Dimensions	~17km[2]
Geometric albedo	~0.01
Surface temp. min mean max Kelvin Celsius
Absolute magnitude (H)	13.8

9949 Brontosaurus is a main belt asteroid. It orbits the Sun once every 3.61 years.^[1]

Discovered on September 22, 1990 by E. W. Elst it was given the provisional designation "1990 SK₆". It was later renamed "Brontosaurus" after Brontosaurus, a genus of dinosaur that is closely related to Apatosaurus.

References

1. "9949 Brontosaurus (1990 SK6)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 13 April 2016.
2. Tedesco E.F.; Noah P.V.; Noah M.; Price S.D. "The supplemental IRAS minor planet survey (SIMPS)".

External links

• 9949 Brontosaurus at the JPL Small-Body Database
  
  • Discovery · Orbit diagram · Orbital elements · Physical parameters