Astronomy 100

Alice Enevoldsen

• Powers of Ten: http://vimeo.com/1066547

• FAR: http://www.youtube.com/watch?v=dF2HG1PVZok

• A Glorious Dawn: http://www.symphonyofscience.com/

Moon

http://science.nasa.gov/headlines/y2007/images/christmaseve/moon.jpg

1 ¼ light seconds1 ¼ light seconds

30 Earth diameters30 Earth diameters

240,000 miles240,000 miles

380,000 kilometers380,000 kilometers

http://z.about.com/d/space/1/5/Y/Q/sun_tour.jpg

Sun

8 light minutes8 light minutes

93 million miles93 million miles

1 Astronomical Unit1 Astronomical Unit

Inner Solar System

http://www.cartage.org.lb/en/themes/sciences/astronomy/Solarsystem/TheSolarsystem/solarsystem/RevolutionandRotation/RevolutionandRotation.htm

Outer Solar System

http://heasarc.gsfc.nasa.gov/docs/cosmic/gifs/alpha.jpg

Alpha Centauri

300,000 AU ?!300,000 AU ?!

One Light Year

• Distance light travels in a year

• 64,000 AU

• 1000 solar system diameters

• 9.5 trillion kilometers

Alpha Centauri

4 Light Years4 Light Years

http://www.twanight.org/newTWAN/photos/3001088.jpg

Milky Way

Wally Pacholka

http://apod.nasa.gov/apod/image/0105/sgr1_hst.jpg

Milky Way Starfield

http://apod.nasa.gov/apod/ap061126.html

Andromeda Galaxy

http://apod.nasa.gov/apod/image/9702/deep_hst_big.jpg

Hubble Deep Field

.

http://www.nasa.gov/centers/marshall/mpeg/126252main_mdis_depart.mpeg

Earth