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Geometry proposal

Blaak: Rotterdam

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Sunset · Monday, 19 October 2026

06:31 PM GMT+2 · Look toward W (253°)

Rotterdam: sunset bearing across the year vs Blaak

230°240°250°260°270°280°290°300°310°S2026ONDJ2027FMAMJJASstreet axis 252.8°19 Oct23 Febtoday19 Oct: sun sets at 255.0°, 2.2° off Blaak
The dashed line is the street. Where the sun's curve touches it are the henge days. Drag across the year to move the sun.

This is where the rising or setting sun lines up with Blaak in Rotterdam.

The date above is the next time it happens, computed from the street's geometry. The windows further down list the full range of days the alignment holds.

This entry is a geometry-verified proposal, not an established local tradition. The pin marks the relevant street corridor rather than an exact standing position. Weather, buildings, terrain, and access can affect what is visible.

Sunset alignment windows

Sunrise alignment windows

Street corridors

  • Some modeled directions are obstructed. Use an unblocked alignment window and check local conditions before visiting.

Analysis data: docs.overturemaps.org · docs.overturemaps.org · registry.opendata.aws · openstreetmap.org

Streethenge calculates geometric solar and lunar alignments. Visibility on site depends on weather, buildings, trees, terrain, safety, and access.

Sun alignment dates for Blaak: Rotterdam