Those you need to know
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| Danish, 1546-1601, discovered serious errors in existing astronomical tables, observed new star in Cassiopeia, developed an accurate catalogu of positions of 777 stars | show 🗑
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| Polish, 1473-1543, founder of modern astronomy, wrote De Revolutionibus, proving the sun to be the center of the universe | show 🗑
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| show | Joseph von Fraunhofer
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| show | Galileo Galilei
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| show | Edmund Halley
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| English, 1792-1871, discovered 525 nebulae, pioneered celestial photography and carried out research on photo-active chemicals and wave theory of light | show 🗑
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| show | William Herschel
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| Danish, 1873-1967, work on relationships between color and brightness of stars, greatly developed Leavitt's method for finding stellar distances | show 🗑
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| American, 1889-1953, identified some nebulae as independent galaxies, discovered "red shift" and announced a Constant for the expansion of universe | show 🗑
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| show | Johann Kepler
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| show | Percival Lowell
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| show | Charles Messier
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| show | Ptolemy
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| show | Carl Sagan
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| show | Clyde William Tombaugh
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
betsynewmark
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