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How to navigate using the stars
Contributed by: Roe
  • 1. Which star is known as the North Star?
A) Polaris
B) Vega
C) Sirius
D) Betelgeuse
  • 2. What constellation is Polaris a part of?
A) Ursa Minor
B) Cassiopeia
C) Ursa Major
D) Orion
  • 3. How can you find Ursa Major?
A) By locating the Big Dipper
B) By locating Orion's belt
C) By locating the Southern Cross
D) By locating the Little Dipper
  • 4. What does the height of Polaris above the horizon indicate?
A) Your longitude
B) The time of day
C) Your altitude
D) Your latitude
  • 5. Which of these constellations is easily identifiable by its 'W' shape?
A) Leo
B) Scorpio
C) Cassiopeia
D) Gemini
  • 6. In the Southern Hemisphere, which constellation helps locate South?
A) Orion
B) Draco
C) Southern Cross
D) Ursa Major
  • 7. What are stars organized into?
A) Nebulae
B) Galaxies
C) Planets
D) Constellations
  • 8. What is the ecliptic?
A) The path of the Moon through the stars
B) The Earth's orbit
C) The path of the Sun through the stars
D) The path of comets
  • 9. What is a sextant used for?
A) Measuring wind speed
B) Telescopic viewing
C) Measuring angles to celestial objects
D) Finding true North
  • 10. What is sidereal time?
A) Time measured by the Moon
B) Time measured by the Sun
C) Greenwich Mean Time
D) Time measured by the apparent motion of the stars
  • 11. Which is the brightest star in the night sky?
A) Vega
B) Polaris
C) Sirius
D) Betelgeuse
  • 12. What does declination on a star chart correspond to?
A) Magnitude
B) Altitude
C) Latitude
D) Longitude
  • 13. What does right ascension on a star chart correspond to?
A) Magnitude
B) Altitude
C) Longitude
D) Latitude
  • 14. What is celestial navigation based on?
A) Measuring angles to celestial bodies
B) Radio signals
C) Guesswork and intuition
D) GPS satellites
  • 15. Which planet is often called the 'Morning Star' or 'Evening Star'?
A) Mars
B) Venus
C) Jupiter
D) Saturn
  • 16. The Southern Cross constellation is also known as?
A) Draco
B) Crux
C) Andromeda
D) Ursa Minor
  • 17. What is the purpose of a nautical almanac?
A) To predict the weather
B) To calculate tides
C) To provide positions of celestial objects
D) To list all the stars
  • 18. What is the zenith?
A) The center of the Earth
B) The point on the horizon
C) The furthest point in the sky
D) The point directly overhead
  • 19. What is an azimuth?
A) The distance to a star
B) The angular distance along the horizon
C) The height above the horizon
D) The brightness of a star
  • 20. How many degrees are in a circle?
A) 360
B) 90
C) 270
D) 180
  • 21. What is the altitude of a star on the horizon?
A) 360 degrees
B) 90 degrees
C) 0 degrees
D) 180 degrees
  • 22. What does a star's magnitude refer to?
A) Its brightness
B) Its distance
C) Its size
D) Its temperature
  • 23. Which of these is a circumpolar constellation?
A) Draco
B) Libra
C) Gemini
D) Pisces
  • 24. Why is Polaris not visible from the Southern Hemisphere?
A) It is below the horizon
B) It's blocked by the Sun
C) It's too faint
D) It's only visible in the daytime
  • 25. What is the prime meridian used for?
A) Establishing longitude
B) Establishing latitude
C) Measuring altitude
D) Finding the zenith
  • 26. What is the relationship between latitude and the angle to Polaris in the Northern Hemisphere?
A) They are unrelated.
B) They are approximately equal.
C) The angle is always 90 degrees.
D) They are inversely proportional.
  • 27. What causes the stars to appear to move across the sky?
A) The expansion of the universe
B) Earth's rotation
C) Solar flares
D) The stars moving
  • 28. What is used to correct for atmospheric refraction?
A) Refraction tables
B) Star charts
C) Telescopes
D) Compasses
  • 29. What is a chronometer used for?
A) Accurate timekeeping
B) Measuring angles
C) Predicting tides
D) Finding North
  • 30. What is the most important factor in identifying constellations?
A) Brightness of the stars
B) Size of the stars
C) Relative positions of the stars
D) Color of the stars
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