Presentation on theme: "March 26, 2014 In your journal, title it “Name that Galaxy” # 1-8. Get with your partner (s) from yesterday and decide if the picture represents: Spiral."— Presentation transcript:
March 26, 2014 In your journal, title it “Name that Galaxy” # 1-8. Get with your partner (s) from yesterday and decide if the picture represents: Spiral Shaped Galaxy Elliptical Shaped Galaxy Irregular-Shaped Galaxy
Science Journals - 3-26-14 Please draw this diagram into your journal.
RED GIANT Before the end of life of an average star, it swells up into a red giant before losing its outer layers in an explosion that creates a planetary nebula. A planetary nebula is NOT the same thing as a stellar nebula. A planetary nebula is near the end of an average star’s life, before it turns into a white dwarf.
Dragonfish Nebula This infrared image from NASA's Spitzer Space Telescope shows the nebula nicknamed 'the Dragonfish.' This turbulent region, jam-packed with stars, is home to some of the most luminous massive stars in our Milky Way galaxy
MASSIVE STAR Massive stars are the brightest stars that form from a nebula. They are white or blue in color. They can have masses 10-150 times that of the Sun (1 solar mass), but they live for less than a million years.
MASSIVE STAR An image of the Wolf-Rayet star R136a1, the most massive star known
RED SUPERGIANT When a massive star has used up all of its nuclear energy, it swells up to 1000 times the diameter of the Sun.