Added:

• Resourcepack compatibility - Every single aspect of the mod can now be modified through the use of Resourcepacks. You can even add new objects to the sky.
• View Center system - View Centers (which can be edited through Resourcepacks) can specify which planet (or any other object really) you're viewing the sky from. They will, by default, work with any dimension using dimension effects of Overworld, Nether and End. Any additional custom dimension effects added by mods can be easily edited into being compatible with the View Center system by their respective mod authors, if they choose to do so.
• Added a conversion system for equatorial coordinates, allowing you to write down coordinates for any object using its J2000 epoch coordinates you can easily find for real-life space objects and make them appear where they should in-game.
• Added Nebulae to the Milky Way Galaxy (Crab Nebula, Dumbell Nebula, Eagle Nebula, Lagoon Nebula, Orion Nebula, Ring Nebula)
• Added companion satellite galaxies to Milky Way Galaxy (Antila 2, Crater 2 Dwarf, Large Magellanic Cloud, Small Magellanic Cloud, Sagittarius Dwarf Spheroid)
• Added Andromeda Galaxy
• Added companion satellite galaxies to Andromeda Galaxy (M32 and M110)
• Added Triangulum Galaxy
• Added Pegasus Dwarf Irregular Galaxy
• Added Alpha Centauri A
• Added Alpha Centauri B
• Added Proxima Centauri
• Added planets orbiting Proxima Centauri (Proxima Centauri b, Proxima Centauri c and Proxima Centauri d)

Fixed:

• Minimized sky jitter caused by high time values (billions of ticks in the future)