_Gudrun.png) 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) | 5.486 yr (2,003.9 d) |
| Mean anomaly | 325.246° |
| Mean motion | 0° 10 46.747 / 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)×10 kg |
| Mean density | 3.27±0.55 g/cm |
| Synodic rotation period | 10.992 h (0.4580 d) |
| Geometric albedo | 0.0425±0.004 |
| Spectral type | Cgh |
| Absolute magnitude (H) | 8.8 |
328 Gudrun is a large main-belt asteroid. It was discovered by German astronomer Max Wolf on March 18, 1892, in Heidelberg. This minor planet is orbiting the Sun at a distance of 3.11 AU with a period of 5.486 yr and an orbital eccentricity of 0.106. The orbital plane is inclined at an angle of 16.1° to the plane of the ecliptic.
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. A study in 2022 found a classification of Cgh for 328 Gudrun, suggesting this is a dark, carbonaceous asteroid.
References
- "Gudrun". Merriam-Webster.com Dictionary. Merriam-Webster.
- ^ "328 Gudrun". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 11 May 2016.
- ^ Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science, 73 (1): 98–118, arXiv:1203.4336, Bibcode:2012P&SS...73...98C, doi:10.1016/j.pss.2012.03.009. See Table 1.
- ^ Hasegawa, Sunao; et al. (November 2022), "Spectral Evolution of Dark Asteroid Surfaces Induced by Space Weathering over a Decade", The Astrophysical Journal Letters, 939 (1), id. L9, arXiv:2209.09415, Bibcode:2022ApJ...939L...9H, doi:10.3847/2041-8213/ac92e4.
- 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.
External links
- 328 Gudrun at AstDyS-2, Asteroids—Dynamic Site
- 328 Gudrun at the JPL Small-Body Database
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