Which of the following locations on the Celestial Sphere is closest to the South Celestial Pole? a. RA= 14hr dec=+88°
b. RA= 14hr dec= -88°
c. RA = 23hr dec= +02°
d. RA= 6hr dec= +24°

The answer is d, you can easily test a theory! hope i you : )

Distance covered = speed x timethe distance traveled going against the stream = distance traveled with the stream.therefore it is the speed and the time that are the variables.as he travels the same distance both ways, speed x time is the same for each way.going upstream his speed is 4 kph; going downstream his speed is 6 kph.therefore we have two simultaneous equations: time upstream x 4 = time downstream x 6time upstream + time downstream = 60 minutestherefore we have the equation: time upstream = 6/10 hour, time downstream therefore = 4/10 hour.distance traveled at 4km/hr in 6/10 hour = 24/10 = 2.4km.check: distance traveled at 6km/hr in 4/10 hour = 24/10 = 2.4km.