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Brass & Bronze Mementos

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Celebrate the most important event in your life with your personal Solar System. 

Your Memento will be the most precise and accurate depiction of the Solar System commemorating the personal date of your choosing. 

The latest NASA data and algorithms are used to compute precisely the positions of the planets and their orbital paths.

Made to order. Please allow 7 - 14 business days for the production before shipping.

We believe our designs are the best on the market because we have combined scientific data with an artistic dimension to make beautiful yet accurate renderings. We use the latest NASA data and algorithms to compute precisely the positions of the planets and dwarf planets, as well as their orbital paths. We have tested our output extensively against results available on JPL's systems because we strive for the best quality and accuracy. 

We then process the numbers in a 3d projection to generate a depiction of the Solar System that is unique to the date you requested. No two different dates produce the same design, that's why SpaceTime Coordinates products are so distinctive and personal. We generate the graphics uniquely and carefully for each order we receive to make sure that your STC item represents *your* special place in space and time.


Raw Brass has a rustic matte look, with rough surfaces and some tarnishing (color spots).

Polished Brass goes through extensive hand polishing to give it a smooth, shiny finish. 

3D printed Brass consists of 15% zinc, 5% tin, and 80% copper.


Raw bronze has a rustic matte look with rough surfaces. It is a high-detail metal with a deep red color similar to rose gold. It has a subtle marbling effect, and the silvery highlights give each piece their own unique character.

Polished Bronze goes through extensive hand polishing to give it a smooth, glossy finish.

3D printed Bronze consists of 10% tin and 90% copper.  

How it's 3D printed

Brass and Bronze models are fabricated using a complex five-step process. First, the model is printed in wax using a specialized high-resolution 3D Printer. It is then put in a container where liquid plaster is poured in around it. Once the plaster sets, the wax is melted out in a furnace, and the remaining plaster becomes the mold.

Molten Brass or Bronze is poured into this mold and set to harden. The plaster is broken away, revealing your new product. Raw models are briefly tumbled. Polished models are carefully cleaned and hand polished.

Handling and care

Like all Brass and Bronze, our Polished and Raw Mementos will tarnish over time and may need to be polished.