328 Gudrun
Main-belt asteroid
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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.[2]
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Discoverydate18 March 1892
(328) Gudrun
Modelled shape of Gudrun from its lightcurve | |
| Discovery | |
|---|---|
| Discovered by | Max Wolf |
| Discovery site | Heidelberg Obs. |
| Discovery date | 18 March 1892 |
| Designations | |
| (328) Gudrun | |
| Pronunciation | /ˈɡʊdruːn/[1] |
Named after | Gudrun |
| Main belt | |
| Orbital characteristics[2] | |
| 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) |
| 3.11062 AU (465.342 Gm) | |
| Eccentricity | 0.10588 |
| 5.486 yr (2,003.9 d) | |
| 325.246° | |
| 0° 10m 46.747s / day | |
| Inclination | 16.1164° |
| 352.328° | |
| 103.924° | |
| Physical characteristics | |
| Dimensions | 122.92±5.2 km[2] 122.59±3.72 km[3] |
| Mass | (3.16±0.46)×1018 kg[3] |
Mean density | 3.27±0.55 g/cm3[3] |
| 10.992 h (0.4580 d) | |
| 0.0425±0.004 | |
| Cgh[4] | |
| 8.8 | |
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.[5] A study in 2022 found a classification of Cgh for 328 Gudrun, suggesting this is a dark, carbonaceous asteroid.[4]
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