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15 Cards in this Set

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