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reflecting telescopeclick to hear

Optical instrument that uses an objective mirror to observe celestial bodies.
reflecting telescope support finderscope eyepiece cradle main tube focusing knob right ascension setting scale azimuth clamp altitude clamp declination setting scale azimuth fine adjustment altitude fine adjustment

support click to hear

finderscope click to hear

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

eyepiece click to hear

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

cradle click to hear

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

main tube click to hear

The barrel of the telescope through which light rays travel; houses the optical system.

focusing knob click to hear

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

right ascension setting scale click to hear

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

azimuth clamp click to hear

Clamp serving to lock the telescope along its horizontal axis.

altitude clamp click to hear

Clamp serving to lock the telescope along its vertical axis.

declination setting scale click to hear

Graduated disk indicating the declination of the celestial body observed.

azimuth fine adjustment click to hear

Fine-tuning device that serves to position the telescope horizontally.

altitude fine adjustment click to hear

Fine-tuning device that serves to position the telescope vertically.