Science Olympiad Reach for the Stars Practice Test

The Helix Nebula, known as NGC 7293, is located in the constellation Aquarius. This planetary nebula is one of the closest to Earth, at about 650 light-years away, and is often described as having a striking appearance due to its bright inner ring and outer filamentary structure. Its placement within Aquarius is significant because the constellation is positioned near the ecliptic, which is the apparent path of the Sun across the sky, making it more accessible for observation in many regions.

The other constellations listed—Gemini, Capricornus, and Scorpius—do not contain the Helix Nebula. While they may feature other celestial objects of interest, the specific association of the Helix Nebula with Aquarius is well-established in astronomical literature. This connection emphasizes the importance of constellation identification when studying deep-sky objects.