Summary
Heiloscope made by Ertel & Son, Munich. The helioscope is a telescope for viewing the sun without injury to the eyes, by means of blackened glass on mirrors that reflect only a part of the light. Used at Melbourne Observatory.
Physical Description
Base has 3 lateral legs with levelling screws. On top of base is rotating wye to support telescope that is rotated on longitudinal axis by worm drive at eyepiece end. At objective end is frame which alters angle of mirrors to reflect only part of light from sun so that the sun can be viewed without injury to the eyes.
More Information
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Collection Names
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Collecting Areas
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Acquisition Information
Transfer from Melbourne Observatory, 1945
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Maker
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User
Melbourne Observatory, South Yarra, Greater Melbourne, Victoria, Australia
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Inscriptions
Marked "Ertel & Sohn in Munchen" Box has Victorian Railways label on top: "LUGGAGE TICKET/ MACEDON / TO/ MELBOURNE"
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Classification
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Category
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Discipline
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Type of item
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Box Dimensions
52 cm (Length), 26 cm (Width), 27 cm (Height)
Box
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Overall Dimensions
46 (Length), 23 (Width), 21 (Height)
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Dimensions
470 mm (Length), 230 mm (Width), 235 mm (Height)
Measurement From Conservation. Measuring Method: measurements of the helioscope without the box.
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Keywords
