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stellar spectra The Hertzsprung- Russel diagram a.k.a. HR diagram Vertical axis: L * Horiz. axis: T s * color of the star.

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Presentation on theme: "stellar spectra The Hertzsprung- Russel diagram a.k.a. HR diagram Vertical axis: L * Horiz. axis: T s * color of the star."— Presentation transcript:

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2 stellar spectra

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6 The Hertzsprung- Russel diagram a.k.a. HR diagram Vertical axis: L * Horiz. axis: T s * color of the star

7 The Hertzsprung- Russel diagram a.k.a. HR diagram Vertical axis: L * Horiz. axis: T s * color of the star

8 The Hertzsprung- Russel diagram a.k.a. HR diagram Vertical axis: L * Horiz. axis: T s *

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10 Red giants – top right L * very big –He burns hot and fast T s * is low –surface far from core

11 planetary nebula with white dwarf

12 Hubble image of Crab nebula

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14 Chandra X-ray image of Crab nebula

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