Rise of the Telescope: Galileo

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Rise of the Telescope Galileo
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Rise of the Telescope Galileo
Photographs taken using a telescope similar to
Galileos by Tom Pope (www.pacifier.com/tpope)
compared to engraving from Sidereus
Nuncius. Upper photo corresponds to a Keplerian
telescope lower is what Galileo would have seen.
January 19, 1610 stellar occultation
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Rise of the Telescope Galileo
Copernicus, Heraclides or Tycho
Galileos drawing of the phases of Venus and
modern photo-mosaic
Ptolemy
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Rise of the Telescope Galileo
The discovery page from Galileos notebook A
later systematic study One of Tom Popes
photographs
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Rise of the Telescope 17th cen.
Hevelius, 1643
Hevelius, 1647 Riccioli, 1651
Huygens, 1659
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Rise of the Telescope 17th cen.
Scheiners helioscope, 1638 first equatorial
mount Roemers transit circle, 1684
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Rise of the Telescope 17th cen.
Hevelius 60-foot telescope, 1673 Huygens
aerial telescope, 1684
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Rise of the Telescope Newton
Newtons reflector, 1671 Newtons drawing of
his prism experiment. This demonstrates the
cause of chromatic aberration (and the basis of
spectroscopy)
Second prism shows no further change
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Rise of the Telescope Hadley
Gregorian reflector with 6-in mirror,
1721. Also invented sextant, 1730.
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Rise of the Telescope Herschel
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Rise of the Telescope Lord Rosse
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Rise of the Telescope Dollond
Image of slit through 20 cm single lens and
doublet, http//www.physics.umd.edu/lecdem/
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Rise of the Telescope Parallax
Dorpat refractor Konigsberger heliometer
Fraunhofer Struve Henderson Bessel
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Rise of the Telescope the AU
1769 Venus transit
First radar measurement
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Photography
Chromatic aberration in an achromatic refractor
set up for visual use
Lewis Morris Rutherfurd
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Photography
Henry Drapers 1882 photo of the Orion Nebula A
modern HST image
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Photography
John Herschel, 1830s Lord Rosse, 1840s
Henry Draper, 1882
David Malin, 1979
Small images from http//www.rit.edu/photo/IFS/Ab
out-IFS.html
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Photography
Early photographs from Pedro Res collection of
scanned plates above M31 and M33 by Isaac
Roberts above right Comet Swift in 1892 by EE
Barnard right the Pleiades by JE Keeler
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Spectroscopy
Fraunhofers 1823 spectrum compared with a modern
spectrum of similar dispersion. Early
photographic spectrum by William Huggins showing
nebular lines
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Spectroscopy
Harvard College Observatory spectro-scopy for the
Henry Draper catalogue