Question 1402Navigation General70% to pass
A first magnitude star is _______________.
AI Explanation
The correct answer is A) 2.5 times as bright as a second magnitude star.
The brightness of stars is measured on a magnitude scale, where lower magnitude numbers indicate brighter stars. A first magnitude star is 2.5 times brighter than a second magnitude star. This is because the magnitude scale is logarithmic, with each decrease in magnitude by 1 corresponding to a 2.5-fold increase in brightness.
The other options are incorrect because they do not accurately reflect the relationship between first and second magnitude stars. For example, options B, C, and D would imply a linear, rather than logarithmic, relationship between magnitudes, which is not accurate.
Related Questions
#1400 You are plotting a running fix in an area where there is a determinable current. How should this current be treated in determining the position? #1401 You are in charge of a power-driven vessel crossing a river on the Western Rivers. You must keep out of the way of _______________.#1403 Which current would you encounter on a direct passage from London, England, to Cape Town, South Africa? #1404 The "head of the bend" is the _______________.#1405 Bellatrix is found in what constellation?