Galileo and the Impact of
the Telescope on AstronomyDanny PanDrexel University10/21/09
International Year of Astronomy
No night without a telescope (Oct 18. to Nov. 24) www.haverford.edu/iya2009/
Sunday – Villanova
Monday – Widener
Tuesday – Swarthmore
Wednesday – Drexel
Thursday – Franklin Institute
Friday – West Chester
Saturday – Haverford AND UPenn
The Telescope
Galileo Galilei (1609)
Jupiter
Moon and the Sun
Phases of Venus
Geocentric vs. Heliocentric
Ptolemy (Geocentric) Copernicus(Heliocentric)
Galileo vs. Roman Catholic Church
Galileo published findings in 1610 Supported Heliocentric Model
In 1614, Father Tommaso Caccini denounced Galileo’s findings, calling it heresy
In 1632, papal trial found Galileo suspect of heresy, put under house arrest
Under house arrest until 1642, when he died
October 31, 1992, Pope John Paul II apologized
Keck, 10 meter telescope in Hawaii
Gemini, 8 meter telescope in Chile
Hubble Space Telescope, 2.4 meter telescope in
Space
Pictures (Crab Nebula)
Pictures (Antennae galaxy)
Pictures (Eagle Nebula)
Astronomers use the Whole Spectrum of Light
Composite Images (M81)
LCROSS
