Year 2003

Work of our members

Analemmatic sundial
in Vlissingen

An analemmatic or azimuth dial is completed at the church of the Apostolic Society in Vlissingen.
It was unveiled at the festive opening of the new church building on Sunday 16 March 2003.
Kevin van der Veen, twelve years old and 1.6 m tall, inaugurated the sundial by reading the hour at 12.25 standard time.
At that moment, children, as well as the previous and current Governors, loosed gold coloured balloons carrying address cards. A cheerful sight.

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One day before Kevin tests the dial between 13 and 14 o'clock wintertime.
His shadow falls between the 14 and 15, because the dial reads summertime.

The hour markers, 6 through 21, lie on an ellipse of 4 by 5.11 meters.
Near the stone date scale, there is a separate stone slab with directions for use.
Triangular stones around the date scale represent the four points of the compass.
The area around the sundial is paved with square bricks.

The surrounding buildings prevent the dial from being fully sunlit at all times.
On Saturday 15 March 2003, the dial could be read from 10:15 until 16:00 hours.
Towards the summer, the irradiation will become more favourable.

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Overview

Some details:
Hour stones: 20 x 20 x 20 cm (8" cube). Font size: 9 .. 10 cm (3½ .. 4").
Date scale: 60 x 175 x 10 cm (2' x 6' x 4"). Font size: 3 cm (1¼").
Directions: 50 x 60 x 10cm (1'8" x 2' x 4") slab. Font size: 2.5 cm (1").
Triangular compass point stones, font size: 7 .. 8 cm (3").
Northern latitude: 51,5 degrees
Eastern longitude: 3,6 degrees

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The date scale


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How to use the dial

Calculations by A. Schoorel-Goedhart and F.J. de Vries.
Execution and Drawing by Terrena Architects of Rotterdam.
North-South line marked out by A.J.M. van den Beld.
Pavement by Harthoorn of Vlissingen.
Contractor: Koninklijke Woudenberg te Ameide
Information on the Apostolic Society may be found at website http://www.apgen.nl

Address of the sundial:
Church of the Apostolic Society
Rosenburglaan 310, Lammerenburg
4386 GZ Vlissingen

Lidi Schoorel-Goedhart.

English translation: RH