| Minorplanet: | yes |
| 343 Ostara | |
| Background: |
|
| Discovered: | 15 November 1892 |
| Mpc Name: | (343) Ostara |
| Alt Names: | 1892 NA892 VA |
| Epoch: | 31 July 2016 (JD 2457600.5) |
| Uncertainty: | 0 |
| Observation Arc: | 123.10 yr (44961 d) |
| Semimajor: | 2.41187AU |
| Perihelion: | 1.85989AU |
| Aphelion: | 2.96385abbr=onNaNabbr=on |
| Eccentricity: | 0.22886 |
| Period: | 3.75 yr (1368.1 d) |
| Inclination: | 3.26504° |
| Asc Node: | 38.6320° |
| Arg Peri: | 9.62726° |
| Rotation: | 109.87abbr=onNaNabbr=on |
| Abs Magnitude: | 11.56 |
| Mean Motion: | / day |
343 Ostara (prov. designation: or) is a background asteroid from the inner region of the asteroid belt. It was discovered by German astronomer Max Wolf at the Heidelberg Observatory on 15 November 1892.[1]