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A CCD (charge-coupled device) camera is essentially a grid of photometers, simultaneously measuring and recording the photons coming from all the sources in the field of view. Because each CCD image records the photometry of multiple objects at once, various forms of photometric extraction can be performed on the recorded data; typically ...
A three-CCD (3CCD) camera is a camera whose imaging system uses three separate charge-coupled devices (CCDs), each one receiving filtered red, green, or blue color ranges. Light coming in from the lens is split by a beam-splitter prism into three beams, which are then filtered to produce colored light in three color ranges or "bands".
UCAC-3 The third edition was published in the IAU General Assembly in Rio (August 2009). UCAC-4 The fourth edition was published in August 2012. Since Spring 2015, the successor URAT is available. UCAC-5 The fifth edition was published in February 2017. [1] [2]
In the above formula, P is measured in units of power, such as watts (W) or milliwatts (mW), and the signal-to-noise ratio is a pure number. However, when the signal and noise are measured in volts (V) or amperes (A), which are measures of amplitude, [note 1] they must first be squared to obtain a quantity proportional to power, as shown below:
.ccd, the filename extension for CloneCD's CD image file; Carbonate compensation depth, a property of oceans; Colony collapse disorder, a phenomenon involving the abrupt disappearance of honey bees in a beehive or Western honey bee colony; centicandela (ccd), an SI unit of luminous intensity denoting one hundredth of a candela
The commune is located in the north-central part of the county, just east of the county seat, Satu Mare. Since 2013, it belongs to the Satu Mare metropolitan area. It is crossed by the national road DN19F , which connects the county seat to Apa. The Odoreu train station serves the CFR Main Line 400, which runs from Brașov to Satu Mare.
The first American-made pocket-sized calculator, the Bowmar 901B (popularly termed The Bowmar Brain), measuring 5.2 by 3.0 by 1.5 inches (132 mm × 76 mm × 38 mm), came out in the Autumn of 1971, with four functions and an eight-digit red LED display, for US$240, while in August 1972 the four-function Sinclair Executive became the first ...
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