Question 1597Navigation General70% to pass
In order for a star to be used for a sight at lower transit, the star must _______________.
AI Explanation
The correct answer is C) be circumpolar.
For a star to be used for a sight at lower transit, it must be a circumpolar star, meaning the star never sets below the horizon at your location. This ensures the star is visible throughout its entire diurnal circle, including the lower transit.
The other options are incorrect because:
A) The star's SHA (Sidereal Hour Angle) relative to the LHA (Local Hour Angle) is not relevant for a lower transit sight.
B) The star's declination being equal to or greater than your latitude is not a requirement for a lower transit sight.
D) The star's GHA (Greenwich Hour Angle) of 180° is also not a necessary condition for a lower transit sight.
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