When the Sun passes through Sagittarius, what significant galactic feature is conceptually *behind* the Sun?
Answer
The densest, brightest parts of the Milky Way
The Sun's position within the Milky Way galaxy dictates what we see in our sky. When the Earth orbits such that the Sun appears to be passing through the boundaries of Sagittarius, this alignment places our solar system in a perspective where the direction behind the Sun points directly toward the true center of our own galaxy, the Milky Way. Consequently, the region containing the highest concentration of stars, gas, and dust—the densest and brightest parts of the galactic core—is situated along that line of sight. Because this region is positioned directly behind the Sun during the day, it is rendered completely invisible to us until nightfall, when we can look away from the Sun.
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