I want to show a more realistic starry sky. May I ask what rules or theoretical basis do you customize the skybox? Or can you tell me where the resources of the skybox can be downloaded?

CesiumJS
1

1. A concise explanation of the problem you’re experiencing.

How to customize starry sky pictures or download resources.

2. A minimal code example. If you’ve found a bug, this helps us reproduce and repair it.

3. Context. Why do you need to do this? We might know a better way to accomplish your goal.

Shows a more realistic HD starry sky and is able to identify some constellation locations.

4. The Cesium version you’re using, your operating system and browser.

cesium 1.6.0
chrome 74

windows10

2

Could some one answer this question please?

3

Basically, what you want to do is make your own skybox – the starry sky is just six large images forming a cube around your globe. Create whatever six images you want, then load them in as a new skybox. more info here: https://cesium.com/docs/cesiumjs-ref-doc/SkyBox.html