Louis Moinet STELLARIUM: A Meteorite Dial and a Personalised Planetary Sky

Louis Moinet gives the STELLARIUM two distinct views of the cosmos: on the front, a blue-tinted meteorite dial, stars that glow at night and a tourbillon form the central motif. The movement side, by contrast, presents a miniature depiction of the solar system. Its distinctive feature is the scope for personalisation: on request, the planets can be arranged to reflect their positions on a date chosen by the owner.

Midnight Blue over Natural Meteorite Structure

For the dial, Louis Moinet uses material from the Muonionalusta meteorite, which formed almost 4,5 billion years ago. Its characteristic Widmanstätten patterns are the result of extremely slow cooling. This natural geometric pattern remains part of the design, but takes on a midnight-blue hue for the STELLARIUM. The atelier does not disclose how this is achieved.

A network of lines of longitude and latitude overlays the meteorite, recalling a star chart. In the dark, the blue-glowing stars come to the fore. The press materials do not specify which luminescent material is used. Meteorite also appears behind the tourbillon cage, extending the dial material into the backdrop of the visible mechanism.

A Solar System for a Chosen Date

Hand-painted planets take centre stage on the movement side. Some measure just two millimetres in diameter. They are arranged on a grid that appears to float above a starry background. Personalisation centres on their positions: on request, Louis Moinet can adapt the display to reflect a day of personal significance.

A distinction must be drawn here between a date-specific depiction and an astronomical complication. What is described is the reproduction of a chosen planetary configuration. The available material does not document a mechanical drive that continuously updates the planets’ positions. The term planetarium alone therefore does not imply such a function.

Tourbillon Confirmed, Further Movement Details Yet to Be Disclosed

The tourbillon is the explicitly stated horological distinction of the STELLARIUM.

The astronomical connection also recalls the brand’s namesake. In 1816, Louis Moinet developed his compteur de tierces to measure the movement of the stars. 210 years later, the STELLARIUM revisits this theme with meteorite material and a customisable celestial display.