Steampunk Victorian Brass Orrery Seed Planetarium

Construct a central wooden pillar housing the internal seed reservoir, accented with polished brass trim and hand-turned spindle details. This core serves as the anchor for the rotating mechanical arms that will extend outward.

Fabricate several articulated brass arms equipped with small, shallow seed-dispensing trays at their termini. Use high-quality stainless steel bearings to ensure the entire assembly rotates smoothly with the wind.

Engrave zodiac constellations or planetary orbital paths onto the copper or brass circular trim plates that surround the seed trays. This adds an authentic alchemical flair while providing durable weather protection for the seeds below.

Finish the wood surfaces with a deep, dark mahogany stain and apply a marine-grade varnish to withstand outdoor exposure. Mount the device on a wrought-iron post to complete the sophisticated Victorian laboratory aesthetic.