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Variable star: Star, Variable star designation, Cepheid variable, W Virginis variable, RR Lyrae variable, Delta Scuti variable -

englanti
2026-03-21
233,16 € 310,88 €

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Toimitus 15-21 arkipäivässä

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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. A star is classified as variable if its apparent brightness as seen from Earth changes over time, whether the changes are due to variations in the star's actual luminosity, or to variations in the amount of the star's light that is blocked from reaching Earth. Many, possibly most, ... Täydellinen kuvaus

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Kuvaus

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. A star is classified as variable if its apparent brightness as seen from Earth changes over time, whether the changes are due to variations in the star's actual luminosity, or to variations in the amount of the star's light that is blocked from reaching Earth. Many, possibly most, stars have at least some variation in luminosity: the energy output of our Sun, for example, varies by about 0.1% over an 11 year solar cycle, equivalent to a change of one thousandth of a magnitude. Astronomers use the term millimagnitude, abbreviated as mmag, for one thousandth of a magnitude.

Lisätietoja

Julkaisija OmniScriptum
Julkaisuvuosi 2026
Kannen tyyppi Pehmeäkantinen
EAN 9786130011550
Kirjoita oma arvostelusi
Arvostelet: Variable star: Star, Variable star designation, Cepheid variable, W Virginis variable, RR Lyrae variable, Delta Scuti variable
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233,16 € 310,88 €