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En relación a la identificación de las estrellas, indique la afirmación CORRECTA:Regarding the Bayer designation of stars within a constellation, identify the CORRECT statement:
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Correct answer: d) The first lowercase letters of the Greek alphabet distinguish the principal stars of each constellation used in nautical astronomy.
Why it is correct
In standard astronomical nomenclature (Bayer designation), the principal stars of each constellation are designated by lowercase letters of the Greek alphabet (α, β, γ, δ, ε…) in approximate order of brightness, with α (alpha) generally marking the brightest star.
Why the others are not
- a) The first lowercase Greek letters (α, β, γ…) are used, not the last uppercase ones.
- b) Alpha (α) normally designates the brightest star of the constellation, not the faintest.
- c) Omega (ω) is the last letter of the Greek (not Roman) alphabet and does not mark the brightest star.
How to work it out in the exam
- Star designation within a constellation: first lowercase Greek letters (α for the brightest).
Where this question comes from
- Ministerio de Transportes (Madrid) · 2021 · Convocatoria de julio · CY Test 2 · question 2 Official paper · Official answer key
- Ministerio de Transportes (Madrid) · 2021 · Convocatoria de julio · CY Test 3 · question 5 Official paper · Official answer key
Pending instructor review. Machine translation, not reviewed.