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<p>a specific part of the color spectrum above and below a bandpass, significantly increasing the <a href="page.php?w=signal-to-noise_ratio">signal-to-noise ratio</a> of the interesting wavelengths, and so making the object gain detail and contrast. While the color filters transmit certain colors from the spectrum and are usually used for observation of the <a href="page.php?w=planets">planets</a> and the <a href="page.php?w=Moon">Moon</a>, the polarizing filters work by adjusting the brightness, and are usually used for the Moon. The broad-band</p><p>
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