© 2008 Plano ISD, Plano, TX. Edwin Hubble was born in Marshfield, Missouri. He was a Rhodes...

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2008 Plano ISD, Plano, TX

Transcript of © 2008 Plano ISD, Plano, TX. Edwin Hubble was born in Marshfield, Missouri. He was a Rhodes...

© 2008 Plano ISD, Plano, TX

© 2008 Plano ISD, Plano, TX

Edwin Hubble was born in Marshfield,

Missouri.

He was a Rhodes scholar, earned a law degree and worked as a lawyer for one year.

Hubble gave up law, deciding that “he’d rather be a bad astronomer than a good lawyer”. He went on to become one of the outstanding astronomers in history.

© 2008 Plano ISD, Plano, TX

Dr. Hubble made some of the most important discoveries in modern

astronomy.Most notably,

he developed a system to classify

galaxies.

There are three major

types – Elliptical, Spiral and Irregular.

© 2008 Plano ISD, Plano, TX

Elliptical GalaxiesEllipticalElliptical- most common galaxy type, looks like a flat ball, contain very little star matter. Stars are very old.

•Picture of M87 elliptical galaxy

•Picture taken by Canada-France-Hawaii telescope on top of dormant volcano Mauna Kea, Hawaii

EllipticalElliptical- most common galaxy type, looks like a flat ball, contain very little star matter. Stars are very old.

•Picture of M87 elliptical galaxy

•Picture taken by Canada-France-Hawaii telescope on top of dormant volcano Mauna Kea, Hawaii

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Spiral GalaxiesSpiralSpiral- shaped like a large flat disc, with bars emerging out, resembling a pin-wheel.

• We live in a spiral galaxy, the Milky Milky WayWay

• This is a picture of another spiral galaxy, “Spiral Galaxy M100”

• It is so far away, the telescope sees it as it appeared at about the time dinosaurs roamed the Earth.

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Irregular GalaxiesIrregular- Irregular- rarest galaxy type, includes all galaxies that are not elliptical or spiral.

•Picture of Large Magellanic Cloud

•Largest satellite galaxy to our Milky Way

•This is the site of Supernova 1987A—brightest and closest supernova

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The Hubble Space Telescope was named in his honor after he died. It was launched in 1990 and orbits about 375 miles above the surface

of the earth.

The HST was designed so that astronauts from the space shuttle can make any needed repairs.

Dr. Hubble was the first to determine that there are other galaxies in space beyond the

Milky Way.

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Hubble Telescope TriviaHubble travels at a speed of 5 miles per

second, or 18,000 miles/hour.

The telescope completes an orbit every 97 minutes.

Traveling at Hubble’s speed, a trip from L.A. to N.Y.C. would take 10 minutes.

Click here to see “Powers

of 10” images.

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This is the Hubble Space

Telescope.

It’s about the size of a

school bus.

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© 2008 Plano ISD, Plano, TX

The death of a star.

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Saturn

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Gaseous ”hula-hoops"

A large pair of gaseous rings surrounding a massive dying star

(PR94-22 May 19, 1994)

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Gaseous Pillars in the Eagle Nebula

Star-Birth Clouds - M16

Star-Birth Clouds - M16

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Gallery of Galaxies

Hubble Telescope looks back more than 10 billion years to reveal at least 1,500

galaxies at various stages of development.

© 2008 Plano ISD, Plano, TX

Bibliography

The Hubble Project. (December 1, 2001)

http://hubble.nasa.gov/overview/hubble_bio.php

Hubble Site.

http://hubblesite.org/

Davidson, M.W. & Florida State University. (1995-2008). Molecular Expression. Accessed on 24, June, 2008 from http://micro.magnet.fsu.edu/primer/java/scienceopticsu/powersof10/index.html