|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
• |
Meteor is seen as streak in sky
|
|
|
• |
Meteorite is a rock on the ground
|
|
|
• |
Meteoroid is a rock in space
|
|
|
• |
Meteor
showers (related to comet orbits) rarely
|
|
|
produce
meteorites
|
|
|
|
– |
Apparently
most comet debris is small and doesn’t
|
|
|
survive
reentry
|
|
|
• |
Meteorites
can be “finds” or “falls”
|
|
|
|
– |
For
a fall – descent actually observed and sometimes
|
|
orbit
computed
|
|
|
|
– |
Most
have orbits with aphelion in asteroid belt
|
|