Delta Scuti stars

(skyoo -tÿ) A class of relatively young pulsating variables, typified by Delta Scuti, that are about 1.5–3 solar masses and range in spectral type from about A3 to F6. They were originally grouped with the dwarf Cepheids. They are numerous but tend to be inconspicuous because of the very small variation in brightness, usually about 0.01–0.4 magnitudes. Like dwarf Cepheids they have very short periods ranging from about 0.5–8 hours. A typical feature is a variation in the amplitude and shape of the light curve. Irregularities in the light-curve contour result from the superimposition of two or more harmonic modes in which the star is pulsating; nonradial pulsations may also be present.

Delta Scuti stars

[¦del·tə ′sküd·ē ‚stärz] (astronomy) A class of pulsating variable stars of spectral type A and with periods of less than 8 hours, relatively small amplitude variations, and masses between 1 and 3 solar masses.

单词	delta scuti stars
释义	Delta Scuti stars Delta Scuti stars (skyoo -tÿ) A class of relatively young pulsating variables, typified by Delta Scuti, that are about 1.5–3 solar masses and range in spectral type from about A3 to F6. They were originally grouped with the dwarf Cepheids. They are numerous but tend to be inconspicuous because of the very small variation in brightness, usually about 0.01–0.4 magnitudes. Like dwarf Cepheids they have very short periods ranging from about 0.5–8 hours. A typical feature is a variation in the amplitude and shape of the light curve. Irregularities in the light-curve contour result from the superimposition of two or more harmonic modes in which the star is pulsating; nonradial pulsations may also be present. Delta Scuti stars [¦del·tə ′sküd·ē ‚stärz] (astronomy) A class of pulsating variable stars of spectral type A and with periods of less than 8 hours, relatively small amplitude variations, and masses between 1 and 3 solar masses.
随便看	najvyššieho kontrolného úradu najwyzsza izba kontroli na-k nak naka nakabi nakadashi nakae toju nakae tokusuke nakagami fading channel nakagami multi-path fading nakagawa angioma nakagawa general association nakagawa, k nakagawa, k. naka liquid control nakamae international economic research nakambe nakambe river nakamura international criminal defense nakamura logistics, inc. nakamura manufacturing company, ltd. nakamura, shuji nakanishi nakanishi, kazuhiro