The next model, Mark-V, was introduced in 1967. The star spheres did not change much relative to the previous type, but the precision is improved and it is extended by some extras. One of these is a module to depict solar and lunar eclipses. Also, Saturn features a zoom projector to show a close up view. Besides that, 17 star clusters and nebulae are integrated. Some copies of Mark-V got a variable step motor and obtained the additional label "Vs". The first copy was installed in Buenos Aires, Argentine.