Astronomy
The study of
everything beyond
Earth!
Order of the Universe


From Largest
To Smallest
Universe
 All
of space and
what is found in
it.
 Full of 100 billion
galaxies with
100 billion stars
each.
Super Cluster



Cluster of clusters of
galaxies, which
include the local
group.
Largest gravitational
bound system so far.
Ours=Local Super
Cluster
Cluster



A small group of galaxies.
They are held together by
gravity and orbit each
other.
Ours = Local Group
Milky Way Galaxy and its
34 closest neighbors.
“Local” means the
galaxies are within a
region 3 million light years
across.
Galaxy
A
vast collection
of dust , gas,
and stars held
together by
gravity.
 Ours =
Milky Way
Sun’s Neighbors
 The
sun and its
20 closest
neighboring stars.
 Some of Ours =
Proxima
Centauri; Aplha Centauri
Solar System
A group of
satellites revolving
around a star.
 Ours =
The sun and its
collection of 8
planets.

Star


A hot, bubbling,
glowing ball of gas. It
radiates a huge
amount of energy in
forms of light and
heat.
Ours = The Sun
Planet


An object that revolves
around a star.
Ours = The Earth
Natural Satellite
 An
object that
revolves around
a planet
 Ours =
The Moon;
Diana
What is the order?
(Largest to Smallest)

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U___________
S___________ C__________
C ___________
G___________
S___________ N___________
S___________ S___________
S___________
P___________
N___________ S___________
Order of the Universe









Universe
Super Cluster
Cluster
Galaxy
Sun’s Neighbors
Solar System
Star
Planet
Natural Satellite
Our Place in the Universe
Universe
 Local Super Cluster
 Local Group
 Milky Way
 Sun’s Neighbors
 Solar System
 Sun
 Earth
 Moon/ Diana
