| Minorplanet: | yes |
| 328 Gudrun | |
| Background: |
|
| Discovered: | 18 March 1892 |
| Mpc Name: | (328) Gudrun |
| Epoch: | 31 July 2016 (JD 2457600.5) |
| Semimajor: | 3.11062AU |
| Perihelion: | 2.78126AU |
| Aphelion: | 3.43998abbr=onNaNabbr=on |
| Eccentricity: | 0.10588 |
| Inclination: | 16.1164° |
| Asc Node: | 352.328° |
| Arg Peri: | 103.924° |
| Dimensions: | |
| Rotation: | 10.992abbr=onNaNabbr=on |
| Spectral Type: | Cgh |
| Abs Magnitude: | 8.8 |
| Mean Motion: | / day |
| Observation Arc: | 104.41 yr (38135 d) |
| Uncertainty: | 0 |
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 with a period of 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 with a brightness variation of in B magnitude. A study in 2022 found a classification of Cgh for 328 Gudrun, suggesting this is a dark, carbonaceous asteroid.