328 Gudrun

328 Gudrun
	Modelled shape of Gudrun from its lightcurve
Discovery
Discovered by	Max Wolf
Discovery site	Heidelberg Obs.
Discovery date	18 March 1892
Designations
MPC designation	(328) Gudrun
Pronunciation	/ˈɡʊdruːn/
Named after	Gudrun
Minor planet category	Main belt
Orbital characteristics
	Epoch 31 July 2016 (JD 2457600.5)
	Uncertainty parameter 0
Observation arc	104.41 yr (38135 d)
Aphelion	3.43998 AU (514.614 Gm)
Perihelion	2.78126 AU (416.071 Gm)
Semi-major axis	3.11062 AU (465.342 Gm)
Eccentricity	0.10588
Orbital period (sidereal)	5.49 yr (2003.9 d)
Mean anomaly	325.246°
Mean motion	0° 10m 46.747s / day
Inclination	16.1164°
Longitude of ascending node	352.328°
Argument of perihelion	103.924°
Physical characteristics
Dimensions	122.92±5.2 km; 122.59 ± 3.72 km
Mass	(3.16 ± 0.46) × 1018 kg
Mean density	3.27 ± 0.55 g/cm3
Synodic rotation period	10.992 h (0.4580 d)
Geometric albedo	0.0425±0.004
Absolute magnitude (H)	8.8

Gudrun (minor planet designation: 328 Gudrun) is a main-belt asteroid.

It was discovered by Max Wolf on March 18, 1892, in Heidelberg.

Analysis of the light curve generated from photometric data collected in March 2012 provide a rotation period estimate of 10.992±0.002 h with a brightness variation of 0.32±0.02 in B magnitude.^[4]

References

^ "Gudrun". Merriam-Webster.com Dictionary. Merriam-Webster.
^ ^a ^b "328 Gudrun". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 11 May 2016.
^ ^a ^b ^c Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science, vol. 73, pp. 98–118, arXiv:1203.4336, Bibcode:2012P&SS...73...98C, doi:10.1016/j.pss.2012.03.009. See Table 1.
^ Schmidt, Richard E. (July 2012), "The Rotation Period of 328 Gudrun", Bulletin of the Minor Planets Section of the Association of Lunar and Planetary Observers, vol. 39, no. 3, p. 109, Bibcode:2012MPBu...39..109S.

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