9954 Brachiosaurus

9954 Brachiosaurus

Orbit of 9954 Brachiosaurus (blue), planets (red) and the Sun (black). The outermost planet visible is Jupiter.
Discovery
Discovered by	E. W. Elst
Discovery date	8 April 1991
Designations
MPC designation	9954 Brachiosaurus
Named after	Brachiosaurus
Alternative names	1991 GX7, 1984 WP5, 1993 UO3
Orbital characteristics[1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc	11217 days (30.71 yr)
Aphelion	3.1232256 AU (467.22790 Gm)
Perihelion	2.3956025 AU (358.37703 Gm)
Semi-major axis	2.7594140 AU (412.80246 Gm)
Eccentricity	0.1318438
Orbital period	4.58 yr (1674.3 d)
Mean anomaly	293.1148°
Mean motion	0° 12^m 54.072^s / day
Inclination	9.086376°
Longitude of ascending node	3.721919°
Argument of perihelion	47.34317°
Earth MOID	1.41452 AU (211.609 Gm)
Jupiter MOID	2.32489 AU (347.799 Gm)
Jupiter Tisserand parameter	3.311
Physical characteristics
Dimensions	~37.1 km[2]
Geometric albedo	~0.01
Surface temp. min mean max Kelvin Celsius
Absolute magnitude (H)	13.3

9954 Brachiosaurus is a main belt asteroid. It orbits the Sun once every 4.58 years.^[1]

Discovered on April 8, 1991 by E. W. Elst, it was given the provisional designation "1991 GX₇". It was later renamed "Brachiosaurus" after Brachiosaurus, a large herbivorous dinosaur.^[3]

References

1. "9954 Brachiosaurus (1991 GX7)". 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)".
3. MPC 47166 Minor Planet Center

External links

• 9954 Brachiosaurus at the JPL Small-Body Database
  
  • Discovery · Orbit diagram · Orbital elements · Physical parameters