Visibility I / V
1678 Hveen (1940 YH, 1951 YD1, A919 GA) Filmed on the first night of the November work. Finland The target of our 100 projects 32. Yrjö Väisälä discovered an asteroid on the outer edge of the main zone on December 28, 1940 in Iso-Heikkilä, Turku. The asteroid takes its name from the name of Tyco Brahe Island, where he founded the observatory in 1576, which operated until 1597. Ven (Hveen) is an island in the Sound that belongs to Sweden. The distance from the west coast of Skåne to the island is 4.5 km and from the east coast of Zealand on Denmark 8.5 km. Wikipedia .The island also has the Tycho Braahe Museum! The size of the asteroid is 42.66km, rotation speed 5.987h / r. The shooting weather varied during the observation and the 60s exposure was not sufficient for the two measurable images. Satisfaction was with measuring the total picture. 1Picture. measured 16: 51: 36-17: 01: 31UT 21h38m54.33s -16d34'55.7 "17.3mag .Horizon 16.52UT 21h38m54.19s -16d34'58.2" and 17: 02UT 21h38m54.44s -16d34'55.9 "17.04mag. TYC 6362-1001-1 v.12.47mag stars were used for calibration.