Concept information
Terme préférentiel
A-type star
Définition
- An A star is a star of spectral type A, white in color, with a spectrum dominated by the Balmer series of hydrogen. Lines of heavy elements, such as iron and calcium, are noticeable at the cooler end of the range. Main sequence A stars have surface temperatures of 7,500 to 9,900 K, luminosities of 7 to 80 times that of the Sun, and masses of 1.5 to 3 solar masses. Familiar examples include Sirius, Vega, and Altair. (Encyclopedia of Science, by David Darling, https://www.daviddarling.info/encyclopedia/A/Astar.html)
Concept générique
Synonyme(s)
- A star
Traductions
-
français
-
étoile A
URI
http://data.loterre.fr/ark:/67375/MDL-RDDKPJKV-M
{{label}}
{{#each values }} {{! loop through ConceptPropertyValue objects }}
{{#if prefLabel }}
{{/if}}
{{/each}}
{{#if notation }}{{ notation }} {{/if}}{{ prefLabel }}
{{#ifDifferentLabelLang lang }} ({{ lang }}){{/ifDifferentLabelLang}}
{{#if vocabName }}
{{ vocabName }}
{{/if}}