StarCitizen:A-type main-sequence star

An A-type main-sequence star (A V) or A dwarf star is a main-sequence (StarCitizen:hydrogen burning) star of StarCitizen:spectral type A and StarCitizen:luminosity class V. These stars have spectra defined by strong hydrogen Balmer absorption lines. They measure between 1.4 and 2.1 solar masses (M☉) and have surface temperatures between 7,600 and 10,000 K. Bright and nearby examples are Altair (A7 V) and Sirius A (A1 V). A-type stars do not have convective zones and thus are not expected to harbor magnetic dynamos. As a consequence, because they do not have strong stellar winds, they lack a means to generate X-ray emissions.

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