MF Tycho Brahe be removed from each ship, and the other two are only intended as a backup, not daily operation. Main specifications: 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.
Tycho Brahe to believe the distance of Mars from the Earth at opposition (that is, when Mars is on the opposite side of the sky from the Sun) was less than that of the Sun from the Earth. Tycho believed this because he came to believe Mars had a greater daily parallax than the Sun. But, in 1584, in a letter to a fellow astronomer, Brucaeus, he had claimed that Mars had been further than the Sun at the opposition of 1582, because he had observed that Mars had little or no daily parallax. He said he had therefore rejected Copernicus's model