> ## Documentation Index
> Fetch the complete documentation index at: /llms.txt
> Use this file to discover all available pages before exploring further.

# Locked Nucleus Orbit

> A fixed center nucleus anchors deterministic satellite orbits that settle into a composed lockup.

# Locked Nucleus Orbit

A fixed center nucleus anchors deterministic satellite orbits that settle into a composed lockup.

**Locked Nucleus Orbit**

```html locked-nucleus-orbit.html theme={null}
<!doctype html>
<!--
  locked-nucleus-orbit: HyperFrames video primitive (intros / reveals / orbit)

  One nucleus stays dead center for the full composition. Satellite rings and
  copy chips fade in while orbiting on deterministic index-based phases, then
  decelerate into a composed lockup. The nucleus is never a GSAP target.

  Variables:
    - label (string, default "core"): text inside the fixed nucleus.
    - accent (green | blue | violet, default green): active color.
    - satellites (number, 3 to 6, default 4): visible satellite count.

  Envelope (fixed IN and ORBIT, elastic HOLD, no OUT):
    IN_BASE    = 0.45s, rings and chips fade in along their orbital arcs
    ORBIT_BASE = 1.75s, satellites decelerate into their final phases
    HOLD       = max(0, D - (IN + ORBIT)), only ring opacity breathes
    OUT        = 0s, the composed lockup is the final state
    If D is shorter than IN_BASE + ORBIT_BASE, IN and ORBIT compress together.

  Mount contract: the runtime clones only this template. #root fills the host
  box, has no data-width or data-height, and registers one paused timeline
  under the hardcoded locked-nucleus-orbit id.
-->
<html
  lang="en"
  data-composition-id="locked-nucleus-orbit"
  data-composition-duration="4"
  data-composition-variables='[
    { "id": "label", "type": "string", "role": "content", "label": "Nucleus label", "description": "Text displayed inside the fixed center nucleus.", "default": "core" },
    { "id": "accent", "type": "enum", "role": "style", "label": "Accent", "description": "Color used by the nucleus, rings, and satellite markers.", "default": "green", "options": [{ "value": "green", "label": "Green" }, { "value": "blue", "label": "Blue" }, { "value": "violet", "label": "Violet" }] },
    { "id": "satellites", "type": "number", "role": "layout", "label": "Satellites", "description": "Number of orbiting copy chips.", "default": 4, "min": 3, "max": 6, "step": 1 }
  ]'
>
  <head>
    <meta charset="UTF-8" />
    <title>Locked Nucleus Orbit</title>
  </head>
  <body>
    <template>
      <div id="root" data-composition-id="locked-nucleus-orbit" data-duration="4" data-fps="30">
        <style>
          *,
          *::before,
          *::after {
            box-sizing: border-box;
          }

          #root {
            position: absolute;
            inset: 0;
            overflow: hidden;
            container-type: size;
            isolation: isolate;
            background: var(--bg, #0b0c0e);
            color: var(--fg, #f8fafc);
            font-family: var(--font-body, Inter, system-ui, sans-serif);
            pointer-events: none;
          }

          .lno-clip {
            position: absolute;
            inset: 0;
            overflow: hidden;
          }

          .lno-field {
            position: absolute;
            inset: 0;
          }

          .lno-ring {
            position: absolute;
            left: 50%;
            top: 50%;
            width: var(--lno-size);
            aspect-ratio: 1;
            border: 0.12cqmin solid color-mix(in srgb, var(--lno-accent) 34%, transparent);
            border-radius: 50%;
            transform: translate(-50%, -50%);
            transform-origin: 50% 50%;
            box-shadow: inset 0 0 3cqmin color-mix(in srgb, var(--lno-accent) 5%, transparent);
            opacity: 0;
          }

          .lno-ring:nth-child(1) {
            --lno-size: 46cqmin;
          }

          .lno-ring:nth-child(2) {
            --lno-size: 58cqmin;
          }

          .lno-ring:nth-child(3) {
            --lno-size: 70cqmin;
          }

          .lno-nucleus {
            position: absolute;
            left: 50%;
            top: 50%;
            width: 15cqmin;
            aspect-ratio: 1;
            display: grid;
            place-items: center;
            transform: translate(-50%, -50%);
            border: 0.2cqmin solid color-mix(in srgb, var(--lno-accent) 68%, white 16%);
            border-radius: 50%;
            background: color-mix(in srgb, var(--surface, #172033) 86%, var(--lno-accent) 14%);
            box-shadow:
              0 0 2.8cqmin color-mix(in srgb, var(--lno-accent) 38%, transparent),
              inset 0 0 2.2cqmin color-mix(in srgb, var(--lno-accent) 18%, transparent);
            z-index: 3;
          }

          .lno-nucleus::before {
            content: "";
            position: absolute;
            width: 2.4cqmin;
            aspect-ratio: 1;
            top: 2.5cqmin;
            border-radius: 50%;
            background: var(--lno-accent);
            box-shadow: 0 0 1.8cqmin color-mix(in srgb, var(--lno-accent) 72%, transparent);
          }

          .lno-nucleus-label {
            max-width: 11cqmin;
            margin-top: 3.1cqmin;
            overflow: hidden;
            color: var(--fg, #f8fafc);
            font-family: var(--font-mono, ui-monospace, "SF Mono", Menlo, monospace);
            font-size: clamp(9px, 2cqmin, 20px);
            font-weight: 700;
            letter-spacing: 0.08em;
            line-height: 1;
            text-overflow: ellipsis;
            text-transform: uppercase;
            white-space: nowrap;
          }

          .lno-arm {
            position: absolute;
            left: 50%;
            top: 50%;
            width: 0;
            height: 0;
            transform-origin: 0 0;
          }

          .lno-anchor {
            position: absolute;
            left: var(--lno-radius);
            top: 0;
            transform: translate(-50%, -50%);
          }

          .lno-chip {
            min-width: 12cqmin;
            max-width: 22cqmin;
            min-height: 5.2cqmin;
            display: flex;
            align-items: center;
            gap: 1.25cqmin;
            padding: 1.1cqmin 1.8cqmin;
            border: 0.12cqmin solid
              color-mix(in srgb, var(--lno-accent) 48%, var(--border, #334155));
            border-radius: 999px;
            background: color-mix(in srgb, var(--surface, #172033) 90%, transparent);
            box-shadow: 0 1.2cqmin 3.6cqmin color-mix(in srgb, var(--bg, #0b0c0e) 60%, transparent);
            opacity: 0;
            will-change: transform, opacity;
          }

          .lno-marker {
            flex: 0 0 auto;
            width: 2.4cqmin;
            aspect-ratio: 1;
            border: 0.32cqmin solid var(--lno-accent);
            border-radius: 50%;
            box-shadow: 0 0 1.4cqmin color-mix(in srgb, var(--lno-accent) 56%, transparent);
          }

          .lno-copy {
            overflow: hidden;
            color: var(--fg, #f8fafc);
            font-family: var(--font-mono, ui-monospace, "SF Mono", Menlo, monospace);
            font-size: clamp(8px, 1.8cqmin, 18px);
            font-weight: 650;
            letter-spacing: 0.08em;
            line-height: 1;
            text-overflow: ellipsis;
            text-transform: uppercase;
            white-space: nowrap;
          }
        </style>

        <div
          id="locked-nucleus-orbit-clip"
          class="lno-clip clip"
          data-start="0"
          data-duration="4"
          data-track-index="0"
        >
          <div class="lno-field">
            <div class="lno-ring" aria-hidden="true"></div>
            <div class="lno-ring" aria-hidden="true"></div>
            <div class="lno-ring" aria-hidden="true"></div>
            <div class="lno-satellites"></div>
            <div class="lno-nucleus">
              <span class="lno-nucleus-label"></span>
            </div>
          </div>
        </div>

        <script src="https://cdn.jsdelivr.net/npm/gsap@3.14.2/dist/gsap.min.js"></script>
        <script>
          (function () {
            "use strict";

            var root = document.getElementById("root");
            var label = root.querySelector(".lno-nucleus-label");
            var satelliteLayer = root.querySelector(".lno-satellites");
            var rings = root.querySelectorAll(".lno-ring");
            var vars =
              window.__hyperframes && window.__hyperframes.getVariables
                ? window.__hyperframes.getVariables()
                : {};

            var accentColors = {
              green: "var(--brand, #34d399)",
              blue: "var(--accent, #38bdf8)",
              violet: "var(--accent-2, #a78bfa)",
            };
            var accent = Object.prototype.hasOwnProperty.call(accentColors, vars.accent)
              ? vars.accent
              : "green";
            var countValue = Number(vars.satellites);
            var satelliteCount =
              vars.satellites != null && Number.isFinite(countValue)
                ? Math.max(3, Math.min(6, Math.round(countValue)))
                : 4;
            var labelText = vars.label == null ? "core" : String(vars.label);
            var copy = ["signal", "motion", "frames", "output", "sync", "lock"];
            var radii = [23, 29, 35];

            root.style.setProperty("--lno-accent", accentColors[accent]);
            label.textContent = labelText;

            var satellites = [];
            for (var index = 0; index < satelliteCount; index += 1) {
              var arm = document.createElement("div");
              var anchor = document.createElement("div");
              var chip = document.createElement("div");
              var marker = document.createElement("span");
              var chipCopy = document.createElement("span");

              arm.className = "lno-arm";
              anchor.className = "lno-anchor";
              chip.className = "lno-chip";
              marker.className = "lno-marker";
              chipCopy.className = "lno-copy";
              arm.style.setProperty("--lno-radius", radii[index % radii.length] + "cqmin");
              chipCopy.textContent = copy[index];

              chip.appendChild(marker);
              chip.appendChild(chipCopy);
              anchor.appendChild(chip);
              arm.appendChild(anchor);
              satelliteLayer.appendChild(arm);

              var finalPhase = -90 + (360 * index) / satelliteCount;
              var travel = 210 + (index % 3) * 70;
              satellites.push({
                arm: arm,
                chip: chip,
                startPhase: finalPhase - travel,
                finalPhase: finalPhase,
              });
            }

            var IN_BASE = 0.45;
            var ORBIT_BASE = 1.75;
            var duration = Math.max(0.001, parseFloat(root.dataset.duration || "4"));
            var motionBase = IN_BASE + ORBIT_BASE;
            var motionScale = duration < motionBase ? duration / motionBase : 1;
            var IN = IN_BASE * motionScale;
            var ORBIT = ORBIT_BASE * motionScale;
            var MOTION = IN + ORBIT;
            var HOLD = Math.max(0, duration - MOTION);
            var fadeStagger = Math.min(0.07, IN / (satelliteCount * 2));
            var fadeDuration = Math.max(0.001, IN - fadeStagger * (satelliteCount - 1));

            gsap.set(rings, { opacity: 0, scale: 0.86 });
            satellites.forEach(function (satellite) {
              gsap.set(satellite.arm, { rotation: satellite.startPhase });
              gsap.set(satellite.chip, {
                opacity: 0,
                rotation: -satellite.startPhase,
                scale: 0.82,
              });
            });

            var tl = gsap.timeline({ paused: true });

            tl.to(rings, { opacity: 0.38, scale: 1, duration: IN, ease: "power2.out" }, 0);

            satellites.forEach(function (satellite, index) {
              tl.to(
                satellite.arm,
                { rotation: satellite.finalPhase, duration: MOTION, ease: "power2.out" },
                0,
              );
              tl.to(
                satellite.chip,
                { rotation: -satellite.finalPhase, duration: MOTION, ease: "power2.out" },
                0,
              );
              tl.to(
                satellite.chip,
                {
                  opacity: 1,
                  scale: 1,
                  duration: fadeDuration,
                  ease: "back.out(1.7)",
                },
                index * fadeStagger,
              );
            });

            if (HOLD > 0.2) {
              tl.to(
                rings,
                {
                  opacity: 0.5,
                  duration: HOLD / 2,
                  ease: "sine.inOut",
                  yoyo: true,
                  repeat: 1,
                },
                MOTION,
              );
            }

            tl.seek(0);
            window.__timelines = window.__timelines || {};
            window.__timelines["locked-nucleus-orbit"] = tl;
          })();
        </script>
      </div>
    </template>
  </body>
</html>
```

Copy npx hyperframes add locked-nucleus-orbit to the clipboard

That writes one file: `compositions/components/locked-nucleus-orbit.html`.

## Paste it into your composition

Open `compositions/components/locked-nucleus-orbit.html` and copy what is inside into your own composition.

A component has no size or duration of its own. It takes both from the composition
you paste it into.

## Variables

Every one of these has a default, so the piece works untouched. Set the ones you
want to change on the element:

| Variable | Default | Accepts | What it does |
| - | - | - | - |
| `label` | `core` | string | Text displayed inside the fixed center nucleus. |
| `accent` | `green` | `green`, `blue`, `violet` | Color used by the nucleus, rings, and satellite markers. |
| `satellites` | `4` | 3 to 6, step 1 | Number of orbiting copy chips. |

Set them with `data-variable-values` on the element that mounts it. These are the
defaults, so this behaves exactly like the preview above until you change one:

```html wrap theme={null}
<div
  data-composition-id="locked-nucleus-orbit"
  data-composition-src="compositions/components/locked-nucleus-orbit.html"
  data-variable-values='{"label":"core","accent":"green","satellites":4}'
></div>
```

Tagged `motion-primitive` `intro` `reveal` `orbit` `lockup` `deterministic`.

## Related topics

* [Browse the complete Catalog](/catalog.md)
* [Add assets and Catalog items in the browser editor](/studio/assets-and-blocks.md)
* [Put blocks together into one video](/concepts/compositions.md)


## Related topics

- [Orbit Card](/catalog/blocks/orbit-card.md)
- [Orbit Carousel 1](/catalog/blocks/carousel-orbit-1.md)
- [Orbit Carousel 2](/catalog/blocks/carousel-orbit-2.md)


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