Hover or tap underlined Spanish terms to see their translation and exam tip.
El día 24.11.2024, se observa el Sol limbo inferior con altura instrumental aiʘ = 34º 01,5’. Error de índice Ei = 1,5’ a la derecha. Elevación del observador Eo = 5 metros. Calcular la altura verdadera del Sol (avʘ).On 24.11.2024, the Sun’s lower limb is observed with sextant altitude 34º 01.5’. Index error Ei = 1.5’ to the right. Height of eye 5 metres. Calculate the Sun’s true altitude.
Show the answer
Correct answer: c) 34º 13.9’
Why it is correct
Error to the right: add it. 34º 03.0′ − 3.9′ dip − 1.4′ refraction + 16.2′ semi-diameter = 34º 13.9′.
Why the others are not
- a) It does not match the working.
- b) It does not match the working.
- d) It does not match the working.
How to work it out in the exam
- Index correction, dip (1.76 × √height), refraction and semi-diameter.
Where this question comes from
- Región de Murcia · 2024 · 3ª convocatoria · CY Tipo 1 · question 14 Official paper · Official answer key
Pending instructor review. Machine translation, not reviewed.