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H-R DIAGRAM [2 records]
Record 1 - internal organization data 1978-05-04
Record 1, English
Record 1, Subject field(s)
- Astronomy
Record 1, Main entry term, English
- giant branch
1, record 1, English, giant%20branch
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 OBS
A conspicuous sequence of red stars with large radii in the H-R diagram of a typical globular cluster that extends from the main-sequence turnoff point upward and redward to the red-giant tip. 1, record 1, English, - giant%20branch
Record 1, French
Record 1, Domaine(s)
- Astronomie
Record 1, Main entry term, French
- branche des géantes
1, record 1, French, branche%20des%20g%C3%A9antes
correct
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 OBS
La plupart des points se placent au voisinage de deux courbes régulières, constituant ainsi deux familles d'étoiles. Dans la première, appelée "série principale", l'intensité lumineuse diminue graduellement de la classe O à la classe M; dans la seconde, appelée "branche des géantes", elle reste grande dans toutes les classes spectrales, de F à M. 1, record 1, French, - branche%20des%20g%C3%A9antes
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 1977-09-21
Record 2, English
Record 2, Subject field(s)
- Astronomy
- Scientific Measurements and Analyses
- Geological Research and Exploration
Record 2, Main entry term, English
- method of spectroscopic parallaxes
1, record 2, English, method%20of%20spectroscopic%20parallaxes
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 OBS
With both its spectral class and luminosity class known, a star's position on the H-R diagram is uniquely determined. Its absolute magnitude, therefore, is also known, and its distance can be calculated. Distances determined this way, from the spectral and luminosity classes, are said to be obtained from the "method of spectroscopic parallaxes". 1, record 2, English, - method%20of%20spectroscopic%20parallaxes
Record 2, French
Record 2, Domaine(s)
- Astronomie
- Mesures et analyse (Sciences)
- Recherches et prospections géologiques
Record 2, Main entry term, French
- méthode des parallaxes spectroscopiques 1, record 2, French, m%C3%A9thode%20des%20parallaxes%20spectroscopiques
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 OBS
La méthode de la détermination des distances basée sur la relation empirique entre la luminosité et le rapport des intensités des raies déterminées du spectre, s'appelle méthode des "parallaxes spectroscopiques". 1, record 2, French, - m%C3%A9thode%20des%20parallaxes%20spectroscopiques
Record 2, Spanish
Record 2, Textual support, Spanish
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