Currently, the largest optical telescope is the Gran Telescopio Canarias in the Canary Islands, Spain.
There are a number of instruments aboard the Hubble Space Telescope. The primary telescope does collect light in the visible spectrum.
Hubble
refractor
The galaxy MACS0647-JD is 13.3 billion light-years away from the Earth and was visible to the Hubble Space Telescope.
Object that only shine with radio waves and not in the visible spectrum an object hidden by dust that block visible light.
There are a number of instruments aboard the Hubble Space Telescope. The primary telescope does collect light in the visible spectrum.
A radio telescope detects light in the form of radio waves and a refracting telescope detects light in the visible wavelengths
No.
Hubble
refractor
-- The source may be one that emits electromagnetic energy in the radio portion of the spectrum but little or no visible light. -- There may be material in the way, such as dust or gas, that absorbs visible light but doesn't absorb radio energy.
visible light
Yes. The Hubble Space Telescope is frequently visible in the evening skies as it passes overhead.
The galaxy MACS0647-JD is 13.3 billion light-years away from the Earth and was visible to the Hubble Space Telescope.
Object that only shine with radio waves and not in the visible spectrum an object hidden by dust that block visible light.
Visible light.
The Hale Telescope at Mount Palomar has an aperture of 200 inches.