How does the Greek-letter designation of a star give you clues both to its location and its brightness? The constellation name describes the star's brightness relative to stars in other constellations and the Greek letter indicates its location in the sky. The brighter stars have constellation names whose first letter is nearer the beginning of the Roman alphabet. The constellation name describes the star's location in the sky and the Greek letter indicates its brightness relative to the other stars in the constellation. The brighter stars have Greek letters nearer the end of the Greek alphabet. The constellation name describes the star's brightness relative to other stars in other constellations and the Greek letter indicates its location in the sky. The brighter stars have constellation names whose first letter is nearer the end of the Roman alphabet. The constellation name describes the star's location in the sky and the Greek letter indicates its brightness relative to the other stars in the constellation. The brighter stars have Greek letters nearer the beginning of the Greek alphabet.