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Astronomical Objects. Dr. Aaron B. Clevenson Lead Astronomer Insperity Observatory in Humble ISD June 10, 2013. Astronomical Objects. Inside our Solar System The Sun Planets Dwarf Planets Moons Asteroids Comets Meteoroids. Outside our Solar System Stars Exoplanets
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Astronomical Objects Dr. Aaron B. Clevenson Lead Astronomer Insperity Observatory in Humble ISD June 10, 2013
Astronomical Objects Inside our Solar System • The Sun • Planets • Dwarf Planets • Moons • Asteroids • Comets • Meteoroids Outside our Solar System • Stars • Exoplanets • Globular Star Clusters • Open Star Clusters • Planetary Nebulae • Bright & Dark Nebulae • Galaxies
The Sun and Stars • The Sun is a Star. • Types of Stars: • O B A F G K M • Big - - - to - - - Small • Hot - - - to - - - Cool • Blue - - - to - - Red • Neutron Stars • Black Holes
Types of Stars • Colors & Temperatures • Sizes
Star’s Lives • Protostars • Main Sequence Stars • End of Life Giant Stars
Planets & Dwarf Planets Planets – Things to Think About • Size Gravity How Much You Weight • Atmosphere What’s In It? Can You Breathe It? Protection?
Planets & Dwarf Planets Planets – Things to Think About • Magnetic Field Protection? • Distance From Star Closer - Hotter More Distant – Cooler • Water?
What Makes A Dwarf Planets Planet Requirements • Orbits the Sun • Round • Controls Debris in its orbit Dwarf Planet Requirements • Orbits the Sun • Round
Asteroids Where Are They? • Asteroid Belt • Trojan Asteroids • Visiting Asteroids What Are They? • Smaller than Planets • Odd Shapes • Made of Rock or Metal
Comets Where Are They? • Kuiper Belt • Oort Cloud • Visiting Asteroids What Are They? • Smaller than Planets • Big Snowballs • Made of Ice & Dirt
Visiting Comets Parts of a Comet • Nucleus • Coma • Dust Tail • Ion Tail Comet Hale-Bopp - 1997