Question 119Navigation Problems70% to pass
On 28 February your 1850 zone time DR position is LAT 27°49.0' N, LONG 159°24.0' W. Considering their magnitude, azimuth, and altitude, which group includes the three stars best suited for a fix at star time?
AI Explanation
The correct answer is D) Rigel, Schedar, Regulus.
The key factors in determining the best stars for a celestial fix are their magnitude, azimuth, and altitude. Rigel, Schedar, and Regulus are well-suited because they have a good spread in azimuth and altitude, allowing for an accurate intersection of lines of position. Additionally, these stars are of a relatively bright magnitude, making them easier to observe and identify. The other answer choices do not provide as optimal a combination of these celestial navigation factors.
Related Questions
#117 You observe the lower limb of the Sun at a sextant altitude (hs) of 46°20.3' on 1 April. The index error is 4.5' off the arc. The height of eye is 57 feet (17.4 meters). What is the observed altitude (Ho)?#118 On 12 June your 1845 DR position is LAT 21°47'N, LONG 46°52'W when you observe a faint unidentifiable star through a break in the clouds. The star bears 019.0°T at a sextant altitude (hs) of 53°56.2'. The index error is 0.5' on the arc, and the height of eye is 45 feet. The chronometer reads 09h 43m 27s, and the chronometer error is 1m 46s slow. What star did you observe?