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Dutch Open Telescope

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Dutch Open Telescope

Dutch Open Telescope, Solar telescope at Roque de los Muchachos Observatory, La Palma, Spain.

Description

The Dutch Open Telescope is a solar telescope located at Roque de los Muchachos Observatory on La Palma in Spain. Its mirror measures 0.45 meters across and operates at an elevation of about 2350 meters to observe and study the sun's surface in fine detail.

History

The telescope started operations in 1997 and introduced a new approach to solar observation with its open design. This concept represented a shift away from the traditional enclosed vacuum-style telescopes that had been used before.

Culture

The facility was created through international cooperation between Dutch and Spanish research institutions working together on solar studies. Scientists from around the world visit to investigate how the sun changes and affects space weather.

Practical

The mountain location provides clear air and minimal air pollution, which is essential for accurate observations. Visitors should bring warm clothing since the high elevation means cooler temperatures throughout the year.

Did you know?

The open design allows warm air to circulate around the mirror, keeping it at a constant temperature. This system prevents the mirror from warping due to heat changes that would otherwise distort observations.

Inception
1997
Elevation above the sea
2,350 m
Diameter
0.45 m
Part of
Roque de los Muchachos Observatory
GPS coordinates
28.75964,-17.88132
Latest update
December 12, 2025 17:45

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« Dutch Open Telescope - Solar telescope at Roque de los Muchachos Observatory, La Palma, Spain » is provided by Around Us (aroundus.com). Images and texts are derived from Wikimedia project under a Creative Commons license. You are allowed to copy, distribute, and modify copies of this page, under the conditions set by the license, as long as this note is clearly visible.

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