Keep the Orbit
A moon circling the wrong way is the fastest way to lose an astronomer. State the direction and hold it for the whole clip.
Type a Planet. Watch It Orbit.
An AI astronomy video generator that turns one line into six seconds of sky, with the orbit, the scale and the light correct. Ready for a doc open.
RENDER THE SKY
Pick the Scale. Set the Light.
Prompt Guide
Model
Reference Image
The Anatomy of a Believable Sky
Three calls that decide whether a shot reads as footage or as a screensaver.
Step 1
Match the Scale
A moon the size of a fist beside a planet the size of a beach ball is the first tell. Fix the ratio before the camera moves.
Step 2
Light From One Side
One sun, one direction. Craters and cloud tops only read if the shadow falls the same way on every object in frame.
Step 3
Move Slowly
A push covering a third of the frame across six seconds is enough. Faster and the stars streak into noise.
Explore the Sky Library
Nebulas, planet passes and launch-day light.
A star forming region of dense dust pillars lit from behind, warm orange rim light on cold blue gas, slow push into the brightest pillar, thousands of faint stars, no text, astrophoto colour, 16:9.
Try This StyleA red desert plain under two small suns, dry cracked ground, distant mesas, dust drifting across the frame, static low camera, long shadows in two directions, faint haze, 16:9.
Try This StyleA lander descends through thin orange atmosphere toward a rocky plain, heat shield glowing at the edge, dust kicking up below, camera mounted on the craft looking down, slight shake, 16:9.
Try This StyleA large moon rises slowly behind a mountain ridge on an airless world, sharp crater edges, black sky with no stars at the horizon, static wide shot, seamless slow movement, muted grey palette.
Try This StyleA ringed gas giant drifting across frame, the rings casting a thin shadow on the cloud bands, slow pan, black space.
Try This PromptA dry canyon floor lit green by an overhead aurora, sharp rock edges, no vegetation, slow tilt up to the sky.
Try This PromptA launch tower arm swinging away from a white rocket at night, floodlights, steam at the base, locked low angle.
Try This PromptAn observatory dome slit opening onto a star field, metal edges catching moonlight, slow rotation, calm pacing.
Try This PromptA comet head drifting past fixed stars, ion tail faintly blue, slight parallax, long slow push, dark background.
Try This PromptA lunar horizon with the terminator line rolling across craters, hard shadow edge, slow lateral pan, no colour cast.
Try This PromptThe 6 Space Rules
Orbits, exposure and scale are where space clips fail. Fix them in this order.
Kill the Twinkle
Stars do not blink in vacuum. Turn off atmospheric shimmer and keep the background still.
Name the Telescope
Say which camera you are imitating, a narrow deep-field frame or a wide survey frame. The lens language picks the composition.
Animate One Body
Let one object move and hold the rest. Two moving bodies in six seconds reads as a render.
Watch the Terminator
The line between day and night stays sharp on airless bodies and soft on planets with atmosphere.
Cap the Speed
Real flybys are slow. Six seconds of drift beats six seconds of warp.
User Feedback
Notes from creators rendering their first skies.
★★★★★
I make science explainers for a school channel. The nebula opens this term's video and the star field stays calm enough that my text is readable over it. Two students asked which telescope it was.
EElena Kovacs
★★★★★
The gas giant approach needed a reroll because the rings were too bright. On the second try the terminator glow was right, and I looped it behind a five minute segment without anyone noticing the seam.
JJamal Rivers
★★★★★
I run a monthly planetarium night and needed filler between two live parts. The moonrise loop played for two minutes and the room stayed quiet, which is the highest praise that crowd gives.
SSophia Marchetti
Real Talk: AI Astronomy Footage
Partial phases work; totality needs the corona described by hand. Give the moon's position and the light direction, and expect one attempt to fail.
Flat lighting. Name a single source and a shadowed limb, and the sphere stops floating.
Not for nebulas. For a specific mission or telescope frame, one reference still keeps the composition honest.
Grok Imagine Video 1.5 gives one free clip without a subscription.
Check the model licence and label the shot as generated. NASA and ESA imagery carries its own credit rules.