6247 Amanogawa

Amanogawa

Discovery
Discovered by	Endate and Watanabe
Discovery site	Kitami Observatory
Discovery date	21 November 1990
Designations
MPC designation	6247
Alternative names	1990 WY3
Orbital characteristics[1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc	9111 days (24.94 yr)
Aphelion	2.5296 AU (378.42 Gm)
Perihelion	2.2585 AU (337.87 Gm)
Semi-major axis	2.3941 AU (358.15 Gm)
Eccentricity	0.056605
Orbital period	3.70 yr (1353.0 d)
Mean anomaly	316.219°
Mean motion	0° 15^m 57.852^s / day
Inclination	8.5730°
Longitude of ascending node	105.590°
Argument of perihelion	287.185°
Earth MOID	1.28144 AU (191.701 Gm)
Jupiter MOID	2.71072 AU (405.518 Gm)
Jupiter Tisserand parameter	3.513
Physical characteristics
Rotation period	12.38 h (0.516 d)
Absolute magnitude (H)	13.4

6247 Amanogawa (1990 WY3) is a main-belt asteroid discovered on November 21, 1990 by Endate and Watanabe at Kitami Observatory.

Photometric observations of this asteroid collected during 2008 show a rotation period of 12.38 ± 0.02 hours with a brightness variation of 0.48 ± 0.04 magnitude.^[2]

References

1. "6247 Amanogawa (1990 WY3)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 13 April 2016.
2. Carbo, Landy; et al. (July 2009), "Asteroid Lightcurve Analysis at the Oakley Southern Sky Observatory and Oakley Observatory: 2008 September and October", The Minor Planet Bulletin, 36 (3): 91–94, Bibcode:2009MPBu...36...91C.

External links

• JPL Small-Body Database Browser on 6247 Amanogawa
• 6247 Amanogawa at the JPL Small-Body Database
  
  • Discovery · Orbit diagram · Orbital elements · Physical parameters