Orrery

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How to fly this thing

Camera

Drag orbit around the focus point
Wheel zoom in and out
Shift + drag pan sideways
Click a body select it and follow it
←→↑↓ rotate
+− zoom
C release the camera

Time

Space play or pause
,. slower or faster
R reverse direction
N jump back to now

Selection and layers

0–9 Sun, then Mercury out to Pluto
[] previous or next body
O orbit paths L labels
S stars G ecliptic grid
B glow ? this panel

About the model

Planet positions come from the standard Keplerian elements for J2000 with their per-century drift, solved for the shown instant. Positions are good to roughly a hundredth of a degree for dates between 1800 and 2050 and drift gently outside that window.

Bodies are drawn larger than life so they stay visible. Turn off Enlarge bodies in the View panel for true relative sizes. Surfaces are generated in your browser from noise, so they are plausible rather than photographic.