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Helioscope, 17th century

Helioscope. Diagram of a helioscope, an instrument which was used for viewing the sun during the early 1600s. It works by projecting the image seen with a telescope onto a white piece of paper suspended in a darkened room. The first purpose built helioscope was designed by German astronomer Christoph Scheiner (1575-1650) to assist his sunspot observations. Sunspots are dark areas on the Sun's surface caused by fluctuating magnetic fields within the Sun. Scheiner was the co-discoverer of sunspots and published his great work, the 'Rosa Ursina', in the 1630s, from which this illustration was taken. It was the standard treatise on the subject for more than a century, containing numerous observations and also a detailed account of his methods and apparatus.
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Título:
Helioscope, 17th century
Descripción:
Traducción automática: Helioscopio. Diagrama de un helioscopio, un instrumento que se utilizaba para observar el sol a principios del siglo XVII. Funciona proyectando la imagen vista con un telescopio sobre una hoja de papel blanca suspendida en una habitación a oscuras. El primer helioscopio construido expresamente fue diseñado por el astrónomo alemán Christoph Scheiner (1575-1650) para ayudarle en sus observaciones de manchas solares. Las manchas solares son áreas oscuras en la superficie del Sol causadas por campos magnéticos fluctuantes dentro del Sol. Scheiner fue el codescubridor de las manchas solares y publicó su gran obra, la 'Rosa Ursina', en la década de 1630, de la que se tomó esta ilustración. Fue el tratado estándar sobre el tema durante más de un siglo, y contenía numerosas observaciones y también una descripción detallada de sus métodos y aparatos.
Helioscope. Diagram of a helioscope, an instrument which was used for viewing the sun during the early 1600s. It works by projecting the image seen with a telescope onto a white piece of paper suspended in a darkened room. The first purpose built helioscope was designed by German astronomer Christoph Scheiner (1575-1650) to assist his sunspot observations. Sunspots are dark areas on the Sun's surface caused by fluctuating magnetic fields within the Sun. Scheiner was the co-discoverer of sunspots and published his great work, the 'Rosa Ursina', in the 1630s, from which this illustration was taken. It was the standard treatise on the subject for more than a century, containing numerous observations and also a detailed account of his methods and apparatus.
Crédito:
Album / Science Source / New York Public Library
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Modelo: No - Propiedad: No
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Tamaño imagen:
2514 x 3094 px | 22.3 MB
Tamaño impresión:
21.3 x 26.2 cm | 8.4 x 10.3 in (300 dpi)
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