Astrophysics (Index)About

CCD

(charge-coupled device)
(electronic device to detect light)

A CCD (for charge-coupled device ) is a type of electronic device generally used to detect light. It can be made very small and can be manufactured in arrays so that an image focused on the array can be captured as an electronic signal and fed into a computer. Their development and adoption constituted a revolution in astronomy: they are used in telescopes (as well as many digital cameras) where they provide the data in electronic digital form, convenient for image storage and processing, and offering the possibility of automating the whole observation process. They have improved the efficiency of astronomical observation, vastly increasing the number of images captured and their use is advantageous for remote operation of telescopes, including space probes, and for fully-automated surveys.


(instrument type,EMR)
Further reading:
http://en.wikipedia.org/wiki/Charge-coupled_device

Referenced by pages:
ACIS
aperture photometry
Víctor M. Blanco Telescope
cadence
Canada-France-Hawaii Telescope (CFHT)
Chandra X-ray Observatory (CXO)
commensal mode
cross dispersion spectrograph
drift scan
Digitized Sky Survey (DSS)
Euclid
fiber positioner
field curvature
flux
focal plane
focal plane array (FPA)
HATNet
hot pixel
imaging Fourier transform spectroscopy (IFTS)
image stabilization
integration time
KELT
Kepler Telescope
KID
Magellan Telescopes
Mercator Telescope
NGTS
Palomar 48 Inch Telescope (P48)
photometer
photometry
photon counting
Pi of the Sky
plate
plate scale
photomultiplier tube (PMT)
parts per million (PPM)
prime focus
quantum efficiency (QE)
QUEST
Shane Telescope
sky subtraction
Sloan 2.5m Telescope
signal-to-noise ratio (SNR)
spectrograph
spectrometer
spectropolarimetry
spectroscope
starshade
USNO CCD Astrograph Catalog (UCAC)
USNO Twin Astrograph

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