1256 Normannia

Normannia

Discovery
Discovered by	K. Reinmuth
Discovery site	Heidelberg
Discovery date	8 August 1932
Designations
MPC designation	1256
Alternative names	1932 PD
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc	85.90 yr (31374 days)
Aphelion	4.1959047 AU (627.69841 Gm)
Perihelion	3.5901273 AU (537.07540 Gm)
Semi-major axis	3.893016 AU (582.3869 Gm)
Eccentricity	0.0778031
Orbital period	7.68 yr (2805.6 d)
Mean anomaly	314.09065°
Mean motion	0° 7^m 41.931^s / day
Inclination	4.173452°
Longitude of ascending node	236.95455°
Argument of perihelion	101.18889°
Earth MOID	2.5838 AU (386.53 Gm)
Jupiter MOID	1.1568 AU (173.05 Gm)
Jupiter Tisserand parameter	3.057
Physical characteristics
Mean radius	34.61±1.4 km
Rotation period	490 h (20 d)
Geometric albedo	0.0504±0.004
Absolute magnitude (H)	9.66

1256 Normannia (1932 PD) is an outer main-belt asteroid discovered on August 8, 1932, by K. Reinmuth at Heidelberg. It is a member of the Hilda group. Measurements of the lightcurve made in 2010 and 2011 give a rotation period of 18.13 ± 0.02 hours. It has a diameter of 69.2 km and a Tholen classification of type D.^[2]

References

1. "1256 Normannia (1932 PD)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 28 April 2016.
2. Gartrelle, Gordon M. (April 2012), "Lightcurve Results for Eleven Asteroids", The Minor Planet Bulletin 39 (2): 40–46, Bibcode:2012MPBu...39...40G, retrieved 2013-02-21.

External links

• 1256 Normannia at the JPL Small-Body Database

• Discovery · Orbit diagram · Orbital elements · Physical parameters