Question 1623Navigation General

The correct answer is A) LHA of Aries. Local sidereal time is equal to the local hour angle (LHA) of the vernal equinox or Aries point. The vernal equinox is the reference point used to measure right ascension, and its LHA gives the sidereal time at a particular location. The other options are incorrect because: B) GHA of Aries minus 180° is Greenwich sidereal time, not local sidereal time; C) SHA of Aries is the sidereal hour angle, not the local sidereal time; and D) right ascension of Aries plus 180° is also not the local sidereal time.