Betelgeuse Rigel Hydrogen Helium Neon Sodium Mercury.

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Presentation transcript:

Betelgeuse Rigel

Hydrogen Helium Neon Sodium Mercury

Movie

Betelgeuse Rigel Orion Constellation

Supernovae

Spiral Galaxy Huge: contain stars, gas, and dust Huge; contain stars, gas and dust Huge; contain stars, gas, and dust Held together by gravity Pinwheel shapeRound to oval in shape No regular shape Bulge and thin disk; halo is present Bulge but no disk; halo is present May show signs of a disk and/or bulge; halo is present Rich in gas and dustLittle cool gas and dust Usually rich in gas and dust Young and old stars are present Mainly old stars are present Young and old stars are present Top ViewSide View Elliptical Galaxy Irregular Galaxy