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15 Cards in this Set
- Front
- Back
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[213] WHAT WAS THE RUDOLPHINE TABLES?
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KEPLER'S FINAL WORK THAT CONSISTED OF A COLLECTION OF TABLES ON THE MOVEMENTS OF PLANETS
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HOW DOES THE VARIATION IN [214] BRIGHTNESS BETWEEN DIFFERENT CELESTIAL OBJECTS HINDER EFFORTS TO MEASURE DIATANCES IN THE UNIVERSE?
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DISTANT BRIGHT STARS CAN LOOK THE SAME AS CLOSE DIM STARS
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ACCORDING TO TREFIL, WHAT [215] WAS THE FIRST STAGE OF DETERMINING THE SIZE OF THE UNIVERSE? WHEN WAS THIS STAGE COMPLETED?
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DETERMINING THE DISTANCES BETWEEN OBJECTS IN THE SOLAR SYSTEM; THE LATE 1600s
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[216] WHAT CAN BE CALCULATED IF THE DISTANCES TO THE FARTHEST VISIBLE GALAXIES ARE KNOWN?
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THE AGE OF THE UNIVERSE
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[217] WHAT TECHNIQUE IS USED TO MEASURE THE DISTANCE BETWEEN EARTH AND THE STARS?
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PARALLAX
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[218] WHAT IS A BASELINE?
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THE LINE BETWEEN TWO POINTS FROM WHICH PARALLAX MEASUREMENTS ARE MADE
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[219] WHAT IS AT EACH OF THE VERTICES OF THE TRIANGLE FORMED WHEN USING PARALLAX TO MEASURE DISTANCE?
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THE OBJECT WHOSE DISTANCE IS TO BE MEASURED AND BOTH ENDS OF THE BASELINE
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[220] WHAT THREE MEASUREMENTS MUST BE KNOWN TO MAKE A DISTANCE MEASUREMENT BASED ON PARALLAX?
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THE LENGTH OF THE BASELINE AND THE TWO ANGLES BETWEEN THE BASELINE AND THE LINE OF SIGHT
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[221] IF THE DISTANCE TO BE MEASURED IS TOO FAR FOR A CERTAIN BASELINE AND ANGLE, WHAT CAN BE CHANGED TO INCREASE MAXIMUM MEASURABLE DISTANCE?
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A LONGER BASELINE CAN BE USED OR THE PRECISION OF THE ANGLE MEASUREMENTS CAN BE INCREASED
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[222] DESCRIBE HOW HIPPARCHUS UTILIZED PARALLAX TO ESTIMATE THE DISTANCE TO THE MOON
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HE MEASURED THE ANGLES TO THE MOON FROM TWO CITIES AND USED THE DISTANCE BETWEEN THE CITIES TO ESTIMATE THE DISTANCE TO THE MOON
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[223] ERATOSTHENES USED THE DISTANCE BETWEEN ALEXANDRIA AND ANOTHER CITY TO MEASURE WHAT LONGER DISTANCE?
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THE CIRCUMFERENCE OF EARTH
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[224] WHY WERE GREEK ASTRONOMERS UNABLE TO ACCURATELY DETERMINE THE DISTANCE TO THE SUN?
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THEY DID NOT HAVE THE TECHNOLOGY TO MAKE ACCURATE ANGLE MEASUREMENTS AND THEY DID NOT HAVE A BASELINE LONGER THAN THE DIAMETER OF EARTH
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[225] IF AN ASTRONOMER TAKES MEASUREMENTS OF A DISTANT STAR IN JANUARY AND AGAIN IN JULY FROM THE SAME LOCATION ON EARTH, WHWAT IS THE BASELINE?
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THE DISTANCE BETWEEN THE EARTH AT THOSE TWO POSITIONS
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[226] WHAT WAS THE GOAL OF THE 1672 FRENCH ACADEMY EXPEDITION TO CAYENNE, FRENCH GUINEA?
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TO TAKE MEASUREMENTS OF THE POSITION OF MARS AND USE KEPLER'S LAWS TO CALCULATE THE DISTANCE TO THE SUN
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[227] HOW DO ASTRONOMERS TODAY MEASURE DISTANCES TO NEIGHBORING PLANETS?
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BY BOUNCING RADIO SIGNALS OFF THEM AND MEASURING THE TIME OF FLIGHT
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