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Optical instrument that uses an objective lens to observe celestial bodies.

$refracting telescope image$

See refracting telescope in : french | spanish

Device placed in front of the objective to limit stray light and condensation.

Part serving to deflect the light toward the eyepiece, thereby providing a comfortable observation position.

Adjusting device that makes it possible to obtain a clear image of the object.

Fine-tuning device serving to position the telescope vertically.

Mount with dual forks used to secure the telescope to the tripod.

Graduated disk indicating the declination of the celestial body observed.

Clamp serving to lock the telescope along its horizontal axis.

Clamp serving to lock the telescope along its vertical axis.

Graduated disk indicating the right ascension of the observed celestial body.

Weight equal to that of the telescope; makes it possible to balance the whole.

Stable three-legged stand of variable height.

Fine-tuning device serving to position the telescope horizontally.

Part that tightens around the main tube to secure it to the base.

The barrel of a telescope housing the optical system; light rays travel through the main tube.

Small low-magnification telescope with a wide field of view; serves to locate celestial bodies.

Lens or system of lenses meant to magnify the image when placed before the eye.