MF Tycho Brahe MF Tycho Brahe M/F "Tycho Brahe" is a Danish train and car ferry that operates at the HH Ferry route between Helsingør, Denmark and Helsingborg, Sweden, a distance of just 5 km. M/F "Tycho Brahe" has been in use since 1991. The ship is bidirectional, therefore it can change direction without turning around, so no time is lost for this. The ship is also able to accelerate and decelerate quite quickly to and from her maximum speed of 14 knots. The ship is named after the Danish astronomer Tycho Brahe. M/F "Tycho Brahe" was built by Langsten Slip & Båtbyggeri
1677 Tycho Brahe asteroid has been characterized as a stony S-type by Pan-STARRS survey, and in the SDSS-MFB (Masi Foglia Binzel) taxonomy, which agree with the overall spectral type for members of the Maria family. In July 2012, a rotational lightcurve of "Tycho Brahe" was obtained by Renata Violante and Martha Leake, that gave a short rotation period of 3.89 hours with a brightness variation of 0.38 magnitude (). According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, "Tycho Brahe" measures 11.78 kilometers in diameter, and its surface has an albedo of 0.221 (revised 2014-figures).