Sky Tour Mode: Let the Sky Turn Itself

Tap Sky tour and the sky starts turning on its own, a slow drift from north toward east, then south, then west, taking about ninety seconds to come full circle. You don't steer it. You don't have to know what you're looking at. And the moment you touch the screen at all, it stops, mid-motion, no warning.

What Sky tour actually does to the camera

The control lives in the sky controls rail, labeled "Sky tour" when it's off and "Stop sky tour" once it's running. Underneath, it's a single continuous change to the camera's yaw, the left-right heading, sweeping the compass in one direction at a steady rate that completes a full 360 degree turn roughly every ninety seconds. Nothing else about the view changes on its own. Time still runs at whatever speed you set it — Live, one minute per second, one hour per second, one day per second — the tour is only ever rotating where you're looking, never how fast the simulated clock is moving.

It's also not a scripted tour of named constellations. There's no list of stops, no captions, no pause at Orion or Cassiopeia. It's one uniform sweep across the whole horizon, and whatever drifts through your field of view along the way is whatever happens to be there.

Why one touch ends it, and why it doesn't come back on its own

Any pointer drag or mouse wheel input ends the tour instantly. Not on the next tick, not with a fade — the sweep simply stops the moment you interact, and control of the camera goes straight back to you. It does not resume by itself later. If you want it running again, you tap the button again.

That design is worth noticing on its own terms. A lot of auto-play features are built to be sticky — they resume after a pause, or require a deliberate stop action. Sky tour is built the other way: the instant you show any intent to look at something specific, it gets out of your way completely, and it stays out of your way until you ask for it back.

Why it disables itself under reduced motion

If your device or operating system has reduced motion turned on, the Sky tour button doesn't just do nothing — it isn't offered at all. Continuous, unbroken rotation like this is a known trigger for motion sensitivity and vestibular discomfort, and the page treats that OS-level signal as a real instruction, not a suggestion. In its place, a short note appears: auto-spin is off while your system requests reduced motion, and the cinematic reading uses gentle cuts instead.

That's a genuinely different design than most of what quietly auto-plays on the web, and it's worth spelling out precisely because it isn't a lesser version of the same feature bolted on as an afterthought. The reduced-motion sky map is not simply "the tour, but slower" — the tour doesn't exist in that mode. What exists instead is cinematic reading, which reaches the same idea, a hands-free walk through tonight's chart, through a completely different mechanism: hard cuts from one framing to the next, with a deliberate pause on each, rather than one continuous sweep. If you've never seen the tour because your system requests reduced motion, you haven't been shortchanged — you've been routed to the version actually built for you.

What it does not do

It's worth being precise about the edges of this feature, because the obvious assumption — that a "tour" walks you past specific things — isn't how this one works. Sky tour doesn't stop on planets, doesn't pause on the Moon, doesn't slow down for an active meteor radiant, and doesn't know or care what's currently in frame. It's a compass sweep, full stop. If you want a version of the sky that's aware of what's actually interesting tonight and stops to tell you about it, that's a different button entirely, and it's the one covered in the cinematic reading piece.

It also doesn't change your location or the simulated time. Whatever you've set through the time controls on the sky map — your coordinates, the current moment, the playback speed — stays exactly as you left it. The tour only ever moves the camera's gaze, never the underlying sky, and the Sky chart panel keeps running underneath it the whole time if you have it open.

What this means for you tonight

If you want to actually learn the sky rather than just watch it drift by, use Sky tour as a first pass and then go back and click things. Start it, let it run one slow revolution so you get a sense of what's roughly where — which patch of horizon has the bright cluster, which direction the ecliptic band leans tonight — and then, as soon as something catches your eye, just drag. That single touch is your entire "stop" command; there's no menu to hunt through, no separate exit button, and by the time your hand moves, the camera is already yours again to aim and click on whatever held your attention. And if you're the kind of person who gets even slightly seasick watching something spin steadily on a screen, don't fight it: check your device's reduced-motion setting before you go looking for the button, because on that setting the tour is deliberately absent, and cinematic reading is the version actually meant for you.