# Refracting Telescope Tube (Planetarium and Optical Observatory)

Long refractor with true thick tube rim, recessed objective face, extended dew shield, two full retaining rings, mounting feet and dovetail rail. Rear optical attachment face accepts separate focuser.

- **URL:** https://3dassets.dev/assets/planetarium-and-optical-observatory-refracting-telesco-43387a5a
- **GLB (direct, CORS *, immutable):** https://cdn.3dassets.dev/assets/31846/v1/model.glb
- **Download (counted):** https://3dassets.dev/download/planetarium-and-optical-observatory-refracting-telesco-43387a5a
- **Licence:** CC0 1.0 Universal: https://creativecommons.org/publicdomain/zero/1.0/ (no attribution required)
- **Contributor:** 3D Assets (@3dassets): https://3dassets.dev/u/3dassets
- **Category:** Props & Furniture
- **Tags:** Modern, Realistic, Modular
- **Geometry:** 4,164 triangles, 3,510 vertices, 5 meshes, 5 materials, 0 textures
- **Size (m):** 0.352 × 0.436 × 1.84
- **Animations:** none
- **File size:** 0.07 MB
- **Downloads:** 0
- **AI used (contributor-reported):** yes; model: GPT-6

## About

Long refractor with true thick tube rim, recessed objective face, extended dew shield, two full retaining rings, mounting feet and dovetail rail. Rear optical attachment face accepts separate focuser. Dimensions 0.35 × 0.44 × 1.84 m (X × Y × Z). Metre units, +Y up, +Z front; origin on the ground at the footprint centre unless stated. Original midnight-blue and ivory public optical astronomy centre. Static optics without projection, tracking, imaging or scientific calibration claims. Static geometry; no rig, animation, collision or navigation data.

## Use with three.js

```js
import { GLTFLoader } from 'three/addons/loaders/GLTFLoader.js'

const loader = new GLTFLoader()
loader.load('https://cdn.3dassets.dev/assets/31846/v1/model.glb', (gltf) => {
  scene.add(gltf.scene)
})
```

## React Three Fiber

```jsx
import { useGLTF } from '@react-three/drei'

export function RefractingTelescopeTubePlanetariumAndOpticalObservatory(props) {
  const { scene } = useGLTF('https://cdn.3dassets.dev/assets/31846/v1/model.glb')
  return <primitive object={scene} {...props} />
}
useGLTF.preload('https://cdn.3dassets.dev/assets/31846/v1/model.glb')
```

## <model-viewer>

```html
<model-viewer src="https://cdn.3dassets.dev/assets/31846/v1/model.glb" alt="Refracting Telescope Tube (Planetarium and Optical Observatory)" camera-controls auto-rotate></model-viewer>
```

## Blender

```python
# Blender 4.x: File > Import > glTF 2.0, or from the Python console after downloading the file.
import bpy
bpy.ops.import_scene.gltf(filepath='model.glb')  # from https://cdn.3dassets.dev/assets/31846/v1/model.glb
# Metres and +Y up are converted to Blender's Z-up scene automatically.
```

## Godot

```gdscript
# Godot 4: copy model.glb into res://models/ and the editor imports it as a scene.
var packed := load("res://models/model.glb") as PackedScene
var model := packed.instantiate()
add_child(model)
```

## Unity

```csharp
// Unity: import model.glb with glTFast (Package Manager: com.unity.cloud.gltfast) and drag the prefab in,
// or load it at runtime straight from the CDN:
using GLTFast;
var gltf = new GltfImport();
if (await gltf.Load("https://cdn.3dassets.dev/assets/31846/v1/model.glb")) await gltf.InstantiateMainSceneAsync(transform);
```

---
JSON: https://3dassets.dev/api/v1/assets/planetarium-and-optical-observatory-refracting-telesco-43387a5a · Loads with a plain GLTFLoader: no Draco/KTX2 loaders needed.