Tool Profile

Zenith

Local-first planetarium that makes Earth's rotation feel immediate.

At a glance:

First seen:2026-05-15

Last seen:2026-05-15

Sightings:1

Source:smorgasb.org

What it is

Local-first planetarium that makes Earth's rotation feel immediate.

Why developers recommend it

Users reacted strongly to how visceral the fixed-viewport experience felt.

Hacker News evidence

2026-05-15

Comments described the effect as amazing and said it made Earth’s motion feel immediate and visceral.

Zenith: a live local-first fixed viewport planetarium