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13 mag 2024 · Hertzsprung hat mit seiner Forschung wichtige Beiträge zur Entwicklung der modernen Astrophysik geleistet. Bereits 1905 definierte er mit der absoluten Helligkeit ein Maß für die Leuchtkraft eines Sterns.
31 mag 2024 · The H-R diagram was created around 1910 by Ejnar Hertzsprung and Henry Norris Russell, plotting stars’ absolute magnitudes or luminosities against their colors or temperatures. It shows that stellar properties are not random but follow distinct patterns.
1 giorno fa · Una stella è un corpo celeste che brilla di luce propria. Si tratta di uno sferoide di plasma che attraverso processi di fusione nucleare nel proprio nucleo genera energia, irradiata nello spazio sotto forma di radiazione elettromagnetica ( luminosità ), flusso di particelle elementari ( vento stellare) e neutrini. [2]
9 mag 2024 · Hertzsprung-Russell Diagram Named for for Ejnar Hertzsprung and H. N. Russell. A graph in which the spectral types of stars are plotted against their absolute magnitudes.
6 giorni fa · The Hertzsprung-Russell Diagramm. 1. Classifications of stars. The spectrum of the brightest star, our Sun, shows several dark gaps perpendicular to the flow of it s colours (figure 1). These so called spectral absorption lines where discovered in 1802 by the English scientist William Wollaston.
28 mag 2024 · Ejnar Hertzsprung - Ejnar Hertzsprung (Danish: [aɪ̯nɐ ˈhæɐ̯tspʁɔŋ]; 8 October 1873 – 21 October 1967) was a Danish chemist and astronomer born in Copenhagen.
10 mag 2024 · Solar fusion III: New data and theory for hydrogen-burning stars. In stars that lie on the main sequence in the Hertzsprung Russel diagram, like our sun, hydrogen is fused to helium in a number of nuclear reaction chains and series, such as the proton-proton chain and the carbon-nitrogen-oxygen cycles. Precisely determined ...
