Download Stars 07icpe

Survey
yes no Was this document useful for you?
   Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Document related concepts

Aquarius (constellation) wikipedia, lookup

Ursa Minor wikipedia, lookup

Corvus (constellation) wikipedia, lookup

Astronomical unit wikipedia, lookup

Boötes wikipedia, lookup

Perseus (constellation) wikipedia, lookup

Corona Australis wikipedia, lookup

Canis Major wikipedia, lookup

Auriga (constellation) wikipedia, lookup

Cygnus (constellation) wikipedia, lookup

Canis Minor wikipedia, lookup

Cassiopeia (constellation) wikipedia, lookup

Corona Borealis wikipedia, lookup

Timeline of astronomy wikipedia, lookup

Hipparcos wikipedia, lookup

Observational astronomy wikipedia, lookup

Lyra wikipedia, lookup

Serpens wikipedia, lookup

International Ultraviolet Explorer wikipedia, lookup

Dialogue Concerning the Two Chief World Systems wikipedia, lookup

CoRoT wikipedia, lookup

History of astronomy wikipedia, lookup

Archaeoastronomy wikipedia, lookup

Ursa Major wikipedia, lookup

Stellar evolution wikipedia, lookup

Star formation wikipedia, lookup

Stellar kinematics wikipedia, lookup

Chinese astronomy wikipedia, lookup

Constellation wikipedia, lookup

IK Pegasi wikipedia, lookup

Stellar classification wikipedia, lookup

Star catalogue wikipedia, lookup

H II region wikipedia, lookup

Astrophotography wikipedia, lookup

Crux wikipedia, lookup

Zodiac wikipedia, lookup

Transcript
Stars
Constellations
 A group
of stars
that appears to
form a pattern
in the sky
Virgo
AQUARIUS
Constellations Ursa
Major
- (Big Bear)
is the most
famous
constellation
Constellations The
Big
Dipper is part
of Ursa Major
Circumpolar Rotation around Polaris
What happens as you travel North?
 The
number of circumpolar stars
visible, increases as the observer
moves North
Stars- How far to a star?


Closest Star = Sun
93,000,000 miles
= 1 astronomical unit
Next closest star
 Proxima Centauri
 25 trillion miles
 2.5 x 10 13
 4.2 light years
Light year



Distance that light
travels in one year
5,900,000,000,000
miles
Polaris- 680 LY
Betelgeuse (red
supergiant ) is 490 LY
How do we size up?
Wow! Jupiter is BIG
Our sun is REALLY BIG!
Guess Not!
We are REALLY SMALL!
I feel so insignificant!
Color?
Depends on surface
temperature
cool
Hot- ~30,000 ° C
Medium- our sun (5500°C)
Classification of stars
Green
stars
look
white
to us!