Four small web things, each living at its own path on this subdomain. No accounts, no trackers, no build step you can see — the two star walks want a mouse, so they open full screen.
Hypsometric tint and analytical hillshade east of the Mississippi, from a 5.5 × 5.7 k DEM grid — hover anywhere for the metres under your cursor.
Perpetual night on a green globe: walk great circles under 8,920 HYG stars placed by real astrometry, then try the quiz over all 88 IAU constellations.
A flat, empty world at ground level under the Bright Star Catalogue, placed by date, time and place. Hold a point of light on the reticle and its name fades in.
A top-down wood that actually runs: grass, birch, oak and pine grow and wilt; rabbits, deer, fox and wolves eat, drink, breed, hunt and rot. Seasons, drought and snow included.