A celestial body composed of ice, dust, and rock that develops a glowing comaAn optical aberration that causes stars near the edge of an image to appear elongated or comet-shaped. and tail when approaching the Sun.
A celestial body composed of ice, dust, and rock that develops a glowing comaAn optical aberration that causes stars near the edge of an image to appear elongated or comet-shaped. and tail when approaching the Sun.