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HOME :: ASTRONOMY :: ASTRONOMICAL OBSERVATION :: REFRACTING TELESCOPE :: REFRACTING TELESCOPE Blog this

refracting telescopeclick to hear

Optical instrument that uses an objective lens to observe celestial bodies.
refracting telescope dew shield star diagonal focusing knob altitude fine adjustment fork declination setting scale azimuth clamp altitude clamp right ascension setting scale counterweight tripod tripod accessories shelf azimuth fine adjustment eyepiece holder cradle main tube finderscope eyepiece

dew shield click to hear

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

star diagonal click to hear

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

focusing knob click to hear

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

altitude fine adjustment click to hear

Fine-tuning device serving to position the telescope vertically.
celestial coordinate system
celestial coordinate system

fork click to hear

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

declination setting scale click to hear

Graduated disk indicating the declination of the celestial body observed.
celestial coordinate system
celestial coordinate system

azimuth clamp click to hear

Clamp serving to lock the telescope along its horizontal axis.
celestial coordinate system
celestial coordinate system

altitude clamp click to hear

Clamp serving to lock the telescope along its vertical axis.
celestial coordinate system
celestial coordinate system

right ascension setting scale click to hear

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

counterweight click to hear

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

tripod click to hear

Stable three-legged stand of variable height.
tripod
tripod

tripod accessories shelf click to hear

azimuth fine adjustment click to hear

Fine-tuning device serving to position the telescope horizontally.
celestial coordinate system
celestial coordinate system

eyepiece holder click to hear

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

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.



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