All flashcards
Flashcard 1: Identify which month is least visible if the lowest plotted point is at February.
Answer: February. The lowest point on the graph indicates worst visibility.
Flashcard 2: Identify what it means if the graph title says “Hours Visible After Sunset.”
Answer: Y-values show hours the star can be seen after sunset. Title clarifies the specific visibility measurement used.
Flashcard 3: What does a legend (key) on a star-visibility graph tell you?
Answer: Which line or color matches each star. Legends identify which data represents which star.
Flashcard 4: Identify the correct conclusion if a star’s visibility is about the same all year on the graph.
Answer: It is visible in roughly the same way each season. Flat lines indicate no seasonal variation in visibility.
Flashcard 5: Which option best explains why a star may be visible in one season but not another?
Answer: Earth’s orbit changes which part of space faces night. Earth's position determines which stars face the night side.
Flashcard 6: What does it mean if Star A peaks in summer and Star B peaks in winter?
Answer: They are most visible in different seasons. Different peak times mean optimal viewing in different seasons.
Flashcard 7: What does it mean if two stars have peaks in the same season on a graph?
Answer: They are easiest to see during the same season. Peak timing shows when viewing conditions are optimal.
Flashcard 8: Identify the star more visible in January if Star A is 3 hours and Star B is 5 hours.
Answer: Star B. Higher y-value means more hours visible that month.
Flashcard 9: Identify what a peak (highest point) on a star visibility line graph represents.
Answer: The time of year the star is easiest to see. Peaks show maximum visibility when conditions are best.
Flashcard 10: Identify what a trough (lowest point) on a star visibility line graph represents.
Answer: The time of year the star is hardest to see. Troughs show minimum visibility when conditions are worst.
Flashcard 11: Which option indicates a repeating seasonal pattern on a yearly star-visibility graph?
Answer: A similar rise-and-fall cycle that repeats each year. Seasonal patterns repeat annually with similar timing.
Flashcard 12: What is the best conclusion if a star is at 0 hours visible for several months?
Answer: It is not visible at night during those months. Zero hours means the star is below the horizon at night.
Flashcard 13: What does it mean if the line on a visibility graph is increasing from March to June?
Answer: The star becomes easier to see from March to June. Rising lines show improving visibility conditions.
Flashcard 14: What does it mean if the line on a visibility graph is decreasing from September to December?
Answer: The star becomes harder to see from September to December. Falling lines show worsening visibility conditions.
Flashcard 15: Identify which month is most visible if the highest plotted point is at July.
Answer: July. The highest point on the graph indicates best visibility.
Flashcard 16: What does a seasonal star-visibility graph usually show on the x-axis?
Answer: Time of year (months or seasons). Seasonal patterns require tracking changes over months/seasons.
Flashcard 17: What does a star-visibility graph usually show on the y-axis?
Answer: Visibility measure (hours visible or visibility rating). Y-axis shows how much or how well the star can be seen.
Flashcard 18: Which option best describes how to compare two stars on the same visibility graph?
Answer: Compare their y-values at the same month or season. Same x-value allows direct comparison of visibility.
Flashcard 19: Identify the star more visible in May if Star A is at 6 hours and Star B is at 2 hours.
Answer: Star A. Higher y-value means more hours visible that month.
Flashcard 20: Identify the season of best visibility if the highest values occur in September, October, and November.
Answer: Fall (Autumn). September-November are the fall months in Northern Hemisphere.
Flashcard 21: Which month is the best viewing month if a graph’s maximum value occurs at April?
Answer: April. The maximum point shows optimal viewing conditions.
Flashcard 22: Identify the season of best visibility if the highest values occur in December, January, and February.
Answer: Winter. December-February are the winter months in Northern Hemisphere.
Flashcard 23: Which month is the worst viewing month if a graph’s minimum value occurs at August?
Answer: August. The minimum point shows poorest viewing conditions.
Flashcard 24: Identify the better viewing month if the graph shows 6 hours visible in October and 2 hours in November.
Answer: October. 6 hours is three times longer visibility than 2 hours.
Flashcard 25: Choose the correct statement if a star shows high visibility from October to March and low visibility from April to September.
Answer: The star is mainly visible in fall and winter. October-March spans fall and winter in Northern Hemisphere.
Flashcard 26: What does it mean if two stars have peaks in different seasons on the same graph?
Answer: They are best seen in different seasons. Different peak months mean the stars are in different sky regions.
Flashcard 27: Which option is the best way to compare two stars on one visibility graph: compare their peaks or their names?
Answer: Compare their peaks (highest visibility months) and overall heights. Peak positions and heights show when and how well stars are visible.
Flashcard 28: Identify the season of best visibility if the highest values occur in March, April, and May.
Answer: Spring. March-May are the spring months in Northern Hemisphere.
Flashcard 29: Identify the season of best visibility if the highest values occur in June, July, and August.
Answer: Summer. June-August are the summer months in Northern Hemisphere.
Flashcard 30: Identify the best conclusion if a star is visible in winter months but not in summer months on a graph.
Answer: The star is a winter sky star for that location. High winter visibility indicates the star is in winter constellations.