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Engraving of a lecturer pointing to an armillary sphere before four listening gentlemen; charts and globes fill a 1748 study.

Astronomy: a savant in his study, instructing a group of gentlemen. Engraving, 1748.

An engraved scene shows a standing lecturer in a long coat pointing with a rod toward a large celestial armillary sphere, while four gentlemen in periwigs listen beside a table with a globe and papers. Charts of the Ptolemaic system and the mariner's compass hang on the wall, and a small globe rests on a stand in the foreground.

Artist
Unknown
Date
1748
Medium
Engravings
Source
Wellcome Collection
Size
4000 × 3228 px
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Public domain · Wellcome Collection marks it Public Domain Mark; made by 1748.
Rights checked 2026-11-05 · tier A · as stated by the source: Public Domain Mark (Wellcome Collection)

Credit (appreciated, not required for public-domain works): Wellcome Collection

Español: La primera lección de geografía y astronomía, grabado de 1748

Un grabado muestra a un conferencista de pie, con abrigo largo, señalando con una varilla una gran esfera armilar, mientras cuatro caballeros con pelucas escuchan junto a una mesa con un globo y papeles. En la pared cuelgan cartas del sistema ptolemaico y de la brújula del marino, y en primer plano hay un pequeño globo sobre su soporte.

Português: A primeira aula de geografia e astronomia, gravura de 1748

Uma gravura mostra um palestrante de pé, com casaco longo, apontando com uma vara para uma grande esfera armilar, enquanto quatro cavalheiros de perucas ouvem junto a uma mesa com um globo e papéis. Na parede há cartas do sistema ptolomaico e da bússola do marinheiro, e em primeiro plano vemos um pequeno globo sobre seu suporte.

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