... The Tycho-2 Catalogue of the 2.5 Million Brightest Stars . The Second U.S. Naval Observatory CCD Astrograph Catalog (UCAC2) . ... Third U.S. Naval Observatory CCD Astrograph Catalog (UCAC3) . UCAC4 Catalogue (Zacharias+, 2012) . ...
... To operate in a sky background dominated regime, the CCD read-out noise may be suppressed by a high quantum efficiency image intensifier, or by using low-noise EM-CCD or sCMOS as a detector. ...
... l2 F2 (1 ) while the faintest detectable object flux, for a sky background noise dominating over the CCD read-out noise, is D -2 - 1 Fluxmin (2 ) D l 2 F For the case of CCD read-out noise domination, the limit is Fluxmin D2 (3 ) The number of detectable ...
... N xN pixels CCD with pixel size of l and exposure time of seconds, is N2l F2 2 (1) while the faintest detectable object flux, for a sky background noise dominating over the CCD read-out noise, is D -2 - 1 Fluxmin D l 2 (2) F For the case of CCD read-out ...
... To operate in a sky background dominated regime, the CCD read-out noise may be suppressed by a high amplification image intensifier, or by using low-noise EM-CCD or sCMOS 1 2 BESKIN ET AL. and allows to reach B12m in 100 consecutive frames (13 seconds ...