You can play Celestia by adding the server in the Minecraft launcher.

On Minecraft Java Edition, open the Minecraft launcher. Click “Multiplayer” and then “Add Server” and enter the Celestia IP Address celestia.ouimc.fr:25674 in the “Server Address”. Then press “Done” and start playing.

For Minecraft Java Edition, the Celestia IP is celestia.ouimc.fr:25674.

To join Celestia, follow the instructions on how to play above.

In Celestia, you can play Vanilla, Survival, Economy, Roleplay and Survival Games.

To vote for Celestia, click the vote button at the top of the page. Then enter your Minecraft username and click “Vote”.

The website for Celestia is https://celestiamc.forumforall.com/.