Lab · Depth Lens

The W is only flat from here

Turn the photograph sideways to see where its stars really sit in space.

Cassiopeia, with its five named stars circledCaphSchedarNaviRuchbahSegin

Seen from Earth

A familiar W

The five stars look like neighbours because Earth sees them from one direction.

One photograph. Five very different distances.Turn it sideways to see where each star really is, and when its light set out.

Depth is squashed so all five stars fit: each step deeper means many times farther away. The order is true, and the years are not squashed.

How far, and how long ago

Caph is the closest at about 55 light years. Navi is roughly 10 times farther. The years are when the light in this 2026 photo left each star.

StarDistanceLight left
Caph55 light years1971
Ruchbah100 light years1927
Schedar230 light years1798 (±2 yr)
Segin410 light years1614 (±22 yr)
Navi550 light years1477 (±11 yr)

Distances: Hipparcos, the new reduction (van Leeuwen 2007), VizieR I/311/hip2, retrieved 26 October 2026. The ± shows the measurement uncertainty.

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