Spanish original · English

Hover or tap underlined Spanish terms to see their translation and exam tip.

Si hallamos el horario en Greenwich del Sol (HGʘ) y calculamos en ese instante su declinación (dʘ), tenemos:If we find the Sun’s Greenwich hour angle and its declination at that moment, we have:

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Correct answer: d) Its hour coordinates.

Why it is correct

Hour angle and declination are hour coordinates.

Why the others are not

  • a) Those belong to a place on Earth.
  • b) They use sidereal hour angle or right ascension.
  • c) Those are altitude and azimuth.

How to work it out in the exam

  1. With hour angle: hour coordinates.

Where this question comes from

Try it: Sight reduction

Pending instructor review. Machine translation, not reviewed.