NEBULAS

NEBULAS

WHAT ARE NEBULAS?

• They are clouds of gas and dust in space
• They are formed by a super nova, dying stars

NEBULAS AND THEIR GASES

• They grow, glowing shells of of gas coming from sun like stars
• They shine because of radiation from the stars hot compact core
• You can see the expelled gas because of light reflecting off of it.
• Nebulas don't go away because the dust clouds prevent light from reaching and destroying the molecules
• The hydrogen molecules have to be in knots to survive

HELIX NEBULA

• Lies 650 light years away
• Located in the constellation Aquarius
• The outer halo features that give the nebula a span of 6 light years
• Weighs about 30,000 Earths
• Has red and blue gas rings because of hydrogen and nitrogen for red and blue because of glowing oxygen

LIBRA NEBULA

• Discovered in the constellation Libra between Serpens
• Discovered in the constellation Libra between Serpens
• Known to be a cluster of 100,000 stars or more bound by gravity
• Approximately 165 light years in diameter
• 25,000 light years away
• The stars are ancient member of the Milky Way

CRAB NEBULA

CRAB NEBULA

• It's span is about 10 light years
• It's span is about 10 light years
• The result of a supernova explosion in 1054 AD
• The result of a supernova explosion in 1054 AD
• Mysterious filaments because they appear to have less mass than the original supernova
• In she center lies a neutron star as massive as the sun
• In she center lies a neutron star as massive as the sun
• It rotates approximately 30 times each second