| Minorplanet: | yes |
| Background: |
|
| 571 Dulcinea | |
| Mpc Name: | (571) Dulcinea |
| Alt Names: | 1905 QZ |
| Discovered: | 4 September 1905 |
| Epoch: | 31 July 2016 (JD 2457600.5) |
| Eccentricity: | 0.24361 |
| Semimajor: | 2.4093AU |
| Perihelion: | 1.8224AU |
| Aphelion: | 2.9963abbr=onNaNabbr=on |
| Period: | 3.74 yr (1366.0 d) |
| Inclination: | 5.2282° |
| Asc Node: | 3.1916° |
| Arg Peri: | 27.650° |
| Mean Motion: | / day |
| Orbit Ref: | [1] |
| Observation Arc: | 110.57 yr (40387 d) |
| Uncertainty: | 0 |
| Abs Magnitude: | 11.59 |
| Rotation: | 126.3abbr=onNaNabbr=on |
571 Dulcinea is an asteroid orbiting in the inner main belt. It was named after Dulcinea, a character from Miguel de Cervantes' novel Don Quixote. This is classified as a stony S-type asteroid and it is the second largest member of the Erigone collisional family.