The Solar System Planets Dwarf Planets Solar System
- Slides: 24
The Solar System Planets & Dwarf Planets
Solar System n the collection of eight planets and their moons in orbit around the sun, together with smaller bodies in the form of asteroids, meteoroids, and comets. n AKA: anything that orbits the sun is part of the solar system
According to this theory, our own solar system formed about 4. 6 billion years ago, and others are forming today in distant nebulae.
The planets Terrestrial/Rocky/Inner n “Earth-Like” n – Mercury, Venus, Earth, Mars n Made of solid rock n Have few or no moons n Small n Short orbital period
Jovian/Gas Giants/Outer n “Jupiter-Like” n – Jupiter, Saturn, Uranus, Neptune n Made of gas n Have many moons n Have rings n Large n Long orbital period
The Solar System n You must know the order of the planets
Dwarf Planets n a celestial body orbiting a star that is massive enough to be rounded by its own gravity but has not cleared its neighboring region of planetesimals and is not a satellite. – AKA: it is not a moon (it does not orbit another planet), but its orbit intersects the orbit of another planet n The first five recognized dwarf planets are Ceres, Pluto, Eris, Makemake and Haumea.
Things to ponder… n Is Pluto always the farthest “planet” from the sun?
To Do: n Solar System Trading Cards Game n Learn n more about each of the planets Solar System Spacing n Learn just how vast the solar system really is!
Smaller Members of the Solar System Asteroids Comets Meteoroids, Meteors, and Meteorites
Asteroids are rocky and metallic objects that orbit the Sun but are too small to be considered planets. They are known as minor planets. n Asteroids are material left over from the formation of the solar system. n Most likely, asteroids are material that never coalesced into a planet n
Asteroid Belt n Most asteroids lie between the orbits of Mars and Jupiter (3 -6 year orbital periods)
Comets • dirty snowballs or "icy mudballs“ • Rocky and metallic materials held together by ices (both water and frozen gases) and dust • Extremely elliptical orbits (long orbital periods)
Parts of a Comet *glue-able slide
A Comet’s Tail n Always points away from the Sun
Where do comets come from? n Kuiper Belt: – Short period comets n Oort Cloud: – Long period comets
Halley’s Comet n Short period comet – Orbital period = 76 years n Last passed by in 1986 – When will the next pass be? – How old will you be?
Meteoroids, Meteors, and Meteorites n Meteoroids (in space) – The smallest particles orbiting the sun, most are no larger than grains of sand n Meteors (in the atmosphere/ shooting stars) – Meteoroids that enter Earth's atmosphere. n Meteorites (on the ground) – Meteors that do not burn up in the atmosphere and impact Earth’s surface
Meteorites Meteors that do not burn up in the atmosphere and impact Earth’s surface n Leave impact craters n Barringer Crater, Arizona n
Extinction of the Dinosaurs?
To Do: n 23. 4 Assessment on page 664 – Restate the question. – Write in complete sentences.
- First four planets
- Solar system jeopardy
- What separates the inner planets and outer planets
- Inner terrestrial planets
- What are jovian planets made of
- What are the four inner planets
- What is the 2nd smallest planet in our solar system
- Solar system inner and outer planets
- Solar system planets
- The solar system
- Brown dwarf types
- Dwarf tossing record
- Is josiah a dwarf
- Is josiah luke a dwarf
- How many dwarfs of cinderella
- The sagittarius dwarf tidal stream
- Dwarf threadworm
- Dwarf awareness month
- Dwarf bb puffer
- Dwarf planet symbols
- Brown dwarf
- Closest galaxy to milky way
- White dwarf neutron star black hole
- How did pluto become a dwarf planet
- Light detectives