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05:30
Grey dawn
The oculus turns from black to pearl before sunrise.
12:00
Shuttered noon
A slatted shade slides over the oculus at midday.
16:30
Reading light
A soft round of light moves slowly across the floor.
20:30
Shade open
The shutter retracts as the first stars appear.
23:00
Milky Way
Lie back — the galaxy crosses the oculus around midnight.
