түссіз линза

түссіз линза

Lens (or combination of lenses) that brings different wavelenghts within a ray of light to a single focus, thus overcoming chromatic aberration. It was first successfully made by Joseph von Fraunhofer.

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Industry/Domain: Astronomy
Category: General astronomy
Company: Caltech
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Diamonds with little or no color visible to the naked eye. Near-colorless diamonds are classified as G, H, I or J on the color scale.

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A diamond with no traces of body color. Light travels through a colorless diamond better than a diamond with color, resulting in exceptional brilliance.

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optical element made of glass or plastic and capable of bending light. A lens may be constructed of single or multiple elements.

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One of about a dozen of the strongest Fraunhofer lines seen in the Solar spectrum, the A band at 7600 angstoms is due to telluric lines of molecular oxygen in the Earth's ...

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Astronomy; General astronomy

Star with spectral type A in which the spectrum of the Balmer lines of hydrogen attain their greatest strength. Helium lines can no longer be seen. Some metallic lines are ...

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Astronomy; General astronomy

The number of protons in an atom's nucleus. This determines the type of element.

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Astronomy; General astronomy

the light produced by excited atoms and ions in the upper atmosphere of a planet

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Astronomy; General astronomy

1) Angular distance from the north point eastward to the intersection of the celestial horizon with the vertical circle passing through the object and the zenith. 2) Directional ...

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