Filters
Credit: LT
Most cameras on telescopes today only measure the brightness of things. They are not able to measure colour at the same time.
Instruments
Credit: LT
GranTeCan Telescope
Credit: GTC
The Gran Telescopio Canarias is also known as 'GranTeCan' or the 'GTC'. It sits 2,267 m up a mountain above the sea on La Palma. It is the largest telescope on the island. The GTC is owned by Spain, Mexico, and the University of Florida in the USA. It is looked after on the site by the local university, the IAC.
Spectroscope
Credit: ESO
Spectrographs are instruments place onto telescopes. Instead of taking a picture of an object, it splits the light up into all the different colours of the spectrum.
CCD Cameras
Credit: Wikimedia user Sphl
Astronomical Instruments
Credit: ING/WHT
Instruments on telescopes are used to make measurements of objects in space.
