Tvären
Tvären is a circular bay close to Studsvik, Sweden. The bay lies above an ancient buried impact crater about 2 km in diameter. The crater is estimated to be about 455 million years old (Late Ordovician).[1]
Asteroid 7771 Tvären is named after the bay.
References
- ^ "Tvären". Earth Impact Database. Planetary and Space Science Centre University of New Brunswick Fredericton. Retrieved 2009-08-20.
58°46′N 17°25′E / 58.767°N 17.417°E
 | This article about a location in Södermanland County, Sweden is a stub. You can help Wikipedia by expanding it. |