Prologue to the Night Sky

Presentation Transcript

Prologue to the Night Sky Spring 2007 Heart of the Valley Astronomers

Mercury

Venus

Saturn

Encaledus

Jupiter

Io and Eruptions

Planets versus Stars Mars Arcturus Vega Uranus Planets show up as plates of light in a telescope. Stars look like littler pinpoints.

How long would it take Voyager II… Neptune? 12 years Sirius? … to reach About 180,000 years

Planets are much nearer Neptune = 2.8 billion miles How does this contrast with a stroll on Earth? The Corvallis Clinic Think about a stroll from Wilson School to… versus Sirius – very nearly 19,000x more remote than Neptune = 52 trillion miles The South Pole

Star Colors & Temperature

Nebula – Gas Clouds

Leo's Galaxies

Where do we get seasons? Sun based vitality From the tilt of Earth as it twists

Telescopes!

Earth's air stops a considerable measure of vitality!

Refractor Telescope

Reflector Telescope

Schmidt-Cassegrain Telescope

Getting Started