The scientific sky simulator aims to realize the interactive starry sky, puts the starry sky map for astronomy in MC for the first time, strictly operates, specifies the track of starry sky operation, and uses mathematical means to express the unity of heaven and mankind.
optifine HD is needed(into minecraft./mods)

The Starfield Size:(9375x6250px)
According to the moving speed and one-year cycle, the celestial sphere will display different parts in the night sky every day. In addition, the scattered light of the earth's atmosphere (day sky and night sky), (rosy dawn and afterlight) is superimposed on the basis of the celestial sphere, which is very natural (because it is superimposed layer by layer in reality), and the sun and moon are changed to 0.5 °

The final effect:
Don't observe the sun with telescope,it would be dangerous.

Starry sky photography: Nick Risinger
Just to remember this,What you bring to the outside world and your body will eventually come back to yourself,therefore, what this pack aims to do is to show how stary sky works to more people and experience poetry and distance for free.

Another version:
Scientific Sky With Grid Simulator
https://www.curseforge.com/minecraft/texture-packs/scientific-sky-simulator-with-grid
You can use and modify textures for personal uses!You can create downloads for this on your own!