Planets & other objects in solar system

1. Planets & Other Objects in our Solar System

2. ProtoplanetHypothesis
Protoplanet hypothesis - is a model used to explain the birth of solar
systems.
There are 3 steps:
1) a cloud of dust and gas begins swirling
2) most of the material (more than 90%) accumulates in the center,
forming the Sun
3) the remaining material forms smaller clumps circling the center.
These are the planets.

3. ProtoplanetHypothesis

4. TheSun
Some Information:
 is almost 110 times ​wider than
Earth
 if it were hollow could ​fit almost
1 million ​Earth's inside
 surface is 5500 °C
 core is ~ 15 000 000 °C

5. TheSun
The sun gives off charged ​particles
called 'solar ​wind', that flow
very ​quickly in every ​direction.
the solar wind ​passes Earth at ~
400 ​km/s.
Earth is protected ​from the solar
wind by ​its magnetic field.

6. TheSun

7. ThePlanets

8. ThePlanets
The Planets
Inner or Terrestrial
(Also called Earth-like)
Outer or Jovian
(In reference to Jupiter)
Smaller, Rockier,
Closer to the Sun
Larger, Gaseous,
Farther from the Sun
Ex: Mercury, Venus,
Earth, Mars
Ex: Jupiter, Saturn,
Uranus, Neptune
Add flow chart to your notes

9. OtherBodiesintheSolarSystem
Asteroids: rocky or metallic bodies travelling in space with predictable
orbits.
Comets: often described as "dirty snowballs," are made up of dust and ice
Ex. Halley's comet is visible every 76 years. Last seen 1986 - next ​time 2062.

10. OtherBodiesintheSolarSystem

11. OtherBodiesintheSolarSystem
When a comet gets close to the sun it will begin to glow
and a tail will ​form. This is because the Sun heats up the
materials in the comet and ​gases are released. The gases
are pushed away by the solar wind ​creating the
appearance of a tail. The tails of some comets can
be ​millions of kilometers long.
Comets usually travel slowly orbiting the outer reaches of
the solar ​system. A close passing body can change the
comets course and it can ​end up orbiting the Sun. Comets
orbit the Sun in an elliptical path so ​they will make a
predictable appearance.

12. OtherBodiesintheSolarSystem
Meteoroids: small pieces of rock flying through space
with no particular path
Meteoroids are:
 as small as a grain of sand, as big as a car
 falling star is just a meteoroid that heats up as it
enters the Earth’s atmosphere
 if it lasts long enough to hit the Earth it's called a
Meteorite

13. OtherBodiesintheSolarSystem
Solar eclipse: Moon passes
between Sun and Earth
Lunar eclipse: Earth passes
between the Sun and Moon

14. OtherBodiesintheSolarSystem
The moon has a 5° tilt so that is why there is not an
eclipse every cycle of the moon