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astronomical telescope

radio telescope

reflecting telescope

space telescope

Keplerian telescope

refracting telescope

Telescopium (constellation); the Telescope

Hubble Telescope

photographic telescope

guiding telescope

telescoping series

Cassegrain telescope

Fermi Telescope

Galilean telescope

Newtonian telescope (having a secondary mirror at 45 degrees, reflecting light into the eyepiece)

solar telescope; helioscope