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SDSS imaging camera
SDSS imaging camera
SDSS spectroscope cartridge
SDSS spectroscope cartridge
Aluminum plate close-up showing optical fibers
Aluminum plate close-up showing optical fibers
Quasars acting as gravitational lenses. To find these cases of galaxy–quasar combinations acting as lenses, astronomers selected 23,000 quasar spectra
Quasars acting as gravitational lenses. To find these cases of galaxy–quasar combinations acting as lenses, astronomers selected 23,000 quasar spectra from the SDSS.
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ARCSAT and SDSS telescope buildings at the Apache Point Observatory.
ARCSAT and SDSS telescope buildings at the Apache Point Observatory.
The ARC 3.5-meter telescope
The ARC 3.5-meter telescope
Enclosure of the SDSS
Enclosure of the SDSS