Galaxium
The line on the page reads GALAXIUM // astronomy reference.
Tabs: HOME, BROWSE, BODY, COMPARE, SYSTEM, ORRERY, CLUSTERS.
Browse
SEARCH matches a world, a system, or a galaxy. Filters: GALAXY, SYSTEM, STAR, KIND (All, Planets, or Dwarfs), and bands for period, semi-major axis, mass, radius, and temperature. Worlds missing a filtered number are left out of that cut. Open a row from OPEN WORLD, then OPEN DETAIL.
Body
WORLD, STAR, and GALAXY each open one record. Until you choose, the panel says NO WORLD SELECTED, NO STAR SELECTED, NO GALAXY SELECTED, or NO SYSTEM SELECTED.
Compare
WORLDS (2–4). Until then, SELECT 2–4 WORLDS.
System and orrery
SYSTEM is one star system. The orrery is a diagram of that system. TIME (days) moves it. SHOW DWARFS and SHOW HABITABLE ZONE toggle those layers. PLAY runs the diagram. Worlds with no usable orbit are listed as Unlocated, not placed on the diagram.
Clusters
If the catalog has no clusters, the panel says No clusters in catalog yet.
If the file cannot be read, the panel says “Couldn't load the astronomy catalog. Try reload.”