This picture will be meaningless to anybody who hasn’t played the “Aurora Isles: The Stone Grove” level in Spiral Knights before.
If you haven’t yet, it’s one of a set of four levels that can be found at Depth 1 of Coral Clover Gate. It gives out decent heat at Depth 1, which means this level would have been amazing at Depth 7. Sigh. Ah well.
And here’s the equator of the sky: