planetarium

The planetarium is installed in a dome, 6 meters in diameter. It was originally installed in 1967 in the old schoolbuilding at Malminkatu 5, Turku, from where it was moved to the Auriga building in 2013.

Projecting up to 5,000 stars

The projector is a Carl Zeiss ZKP 1 (Zeiss Kleinplanetarium No 1), serial number 256, capable of projecting a total of 5,000 stars down to the 6th magnitude. Additionally, the moon, planets and Milky Way can be displayed, as well as the various lines for astronomical navigation, i.e. the Vertical Circle, Meridian, Declination Circle, Ecliptic, Horizon, etc.

The ZKP 1 was produced in the hundreds between 1954 and 1992, most of them still in operation in various highschools and universities, mostly in Germany, Czech Republic and Slovakia, but they can be found all over the world even today.

The latitude can be adjusted between 0° and N 90° (the equator to the North Pole).

The projector can be used at standstill or run at various speeds to simulate the daily movement of the heavens (actually, of course, the rotation of the earth) so as to show, for example, the rising and setting of the stars.

The pinpoints of light depicting the stars is produced by a single 50W bulb and projected onto the dome through 31 lenses.

Astronomical navigation for deck officer students

This planetarium is today, as it has been since 1967, used in the education of deck officers in the art of astronomical navigation, a skill that is, despite all modern electronic navigational equipment, still required by international conventions.

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Aboa Mare

Juhana Herttuan puistokatu 21, 20100 Turku, Finland