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How to navigate using the sun
  • 1. At what time of day is the sun at its highest point in the sky?
A) Sunset
B) Sunrise
C) Midnight
D) Solar noon
  • 2. What direction does the sun generally rise in?
A) South
B) East
C) West
D) North
  • 3. What direction does the sun generally set in?
A) South
B) East
C) North
D) West
  • 4. In the Northern Hemisphere, shadows cast by the sun move in what direction throughout the day?
A) North to South
B) Counter-clockwise
C) South to North
D) Clockwise
  • 5. In the Southern Hemisphere, shadows cast by the sun move in what direction throughout the day?
A) Clockwise
B) Counter-clockwise
C) South to North
D) North to South
  • 6. When using the sun as a compass, what additional tool is most helpful?
A) A sextant
B) A map
C) A telescope
D) A watch
  • 7. What is the primary limitation of using the sun for navigation?
A) Only works at night
B) Requires a compass
C) Requires clear skies
D) Only works at noon
  • 8. During the equinoxes, where does the sun rise?
A) Due West
B) Due East
C) Due South
D) Due North
  • 9. How does latitude affect the sun's path in the sky?
A) Higher latitude, lower angle
B) Only affects direction
C) Higher latitude, higher angle
D) Latitude doesn't affect the angle
  • 10. What is the approximate angle of the sun at solar noon at the equator?
A) 90 degrees
B) 45 degrees
C) 180 degrees
D) 0 degrees
  • 11. What is the term for the position of the sun in the sky?
A) Celestial latitude
B) Solar altitude
C) Azimuth
D) Zenith distance
  • 12. What is the term for the angular measurement of the sun's position along the horizon?
A) Azimuth
B) Zenith
C) Altitude
D) Declination
  • 13. How does Daylight Saving Time affect solar noon?
A) Shifts it earlier
B) Shifts it later
C) No effect
D) Reverses it
  • 14. What is the effect of the seasons on the sun's path?
A) No effect
B) Only effects sunrise and sunset times
C) Only effects temperature
D) Alters the arc of the sun
  • 15. When is the sun directly overhead at the Tropic of Cancer?
A) Summer solstice
B) Autumn equinox
C) Winter solstice
D) Spring equinox
  • 16. When is the sun directly overhead at the Tropic of Capricorn?
A) Winter Solstice
B) Spring Equinox
C) Summer Solstice
D) Autumn Equinox
  • 17. What is a sundial used for?
A) Measuring latitude
B) Finding direction
C) Telling time
D) Predicting weather
  • 18. What celestial coordinate system is useful for predicting the suns position?
A) Galactic Coordinate System
B) Horizontal Coordinate System
C) Equatorial Coordinate System
D) Ecliptic Coordinate System
  • 19. Why is it dangerous to look directly at the sun?
A) Can cause sunburn
B) It's bad luck
C) Can damage your skin
D) Can damage your eyes
  • 20. What is the equation of time used for in sun navigation?
A) Correcting sundial time
B) Predicting sunrise
C) Finding longitude
D) Finding latitude
  • 21. How many degrees does the sun appear to move across the sky each hour?
A) 30 degrees
B) 1 degree
C) 15 degrees
D) 60 degrees
  • 22. What is the name of the point on the celestial sphere directly overhead?
A) Zenith
B) Horizon
C) Nadir
D) Equator
  • 23. Which of these is a challenge to solar navigation at sea?
A) Constant darkness
B) Cloud cover
C) Lack of maps
D) GPS availability
  • 24. What is declination in astronomical terms?
A) Angular distance east or west
B) Horizontal distance of the sun
C) Angular distance north or south of equator
D) Height of the sun above horizon
  • 25. What is necessary to determine longitude using the sun?
A) Compass
B) Star chart
C) Accurate time
D) Latitude
  • 26. The 'shadow tip' method relies on observing?
A) The shortest shadow of a vertical object
B) The darkest shadow cast
C) The shadow of a cloud
D) The shadow on a sundial
  • 27. What does the term 'solar day' refer to?
A) Time between successive solar noons
B) Time it takes for the sun to orbit
C) Time the sun is visible
D) Time from sunrise to sunset
  • 28. For accurate sun-based navigation, it's crucial to account for:
A) Barometric pressure
B) Wind speed
C) Geographic location and time of year
D) Number of visible stars
  • 29. What is the gnomen of a sundial?
A) The base of the sundial
B) The part that casts a shadow
C) The cover of the sundial
D) The decorative markings
  • 30. Why is it important to know the time zone when using the sun to navigate?
A) Time zones change solar noon
B) Time zones have no effect
C) For determining the season
D) To determine the weather
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