Transcript Hubble_edit - Rockwall ISD

© 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.
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Dr. Hubble made some of the most important
discoveries in modern astronomy.
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Most notably,
he developed a
system to
classify
galaxies.
There are three
major types –
Elliptical, Spiral
and Irregular.
Elliptical Galaxies
Elliptical- most common galaxy type, looks like a
flat ball, contain very little star matter. Stars are
very old.
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•Picture of M87
elliptical galaxy
•Picture taken by
Canada-FranceHawaii telescope
on top of dormant
volcano Mauna Kea,
Hawaii
Spiral Galaxies
Spiral- shaped like a large flat disc, with bars
emerging out, resembling a pin-wheel.
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• We live in a spiral
galaxy, the Milky Way
• 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.
Irregular Galaxies
Irregular- rarest galaxy type, includes all galaxies
that are not elliptical or spiral.
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• Picture of Large
Magellanic Cloud
• Largest satellite
galaxy to our Milky
Way
• This is the site of
Supernova 1987A—
brightest and
closest supernova
Dr. Hubble was the first to
determine that there are other
galaxies in space beyond the
Milky Way.
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.
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The HST was designed so that
astronauts from the space shuttle can
make any needed repairs.
Hubble Telescope Trivia
Hubble 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.
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It’s about the
size of a school
bus.
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The death of a star.
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Saturn
Gaseous ”hula-hoops"
A large pair of gaseous rings surrounding a
massive dying star
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(PR94-22 May 19, 1994)
Star-Birth Clouds - M16
Star-Birth
Clouds - M16
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Gaseous Pillars in
the Eagle Nebula
Gallery of Galaxies
Hubble Telescope looks back more than 10
billion years to reveal at least 1,500 galaxies
at various stages of development.
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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
© 2008 Plano ISD, Plano, TX