 Its distance from the Sun varies from about 30 to almost 50 times Earth's distance, a difference of 1.8 billion miles. It moves a lot faster when it's closest to the Sun, so it crosses more of the starry background. Pluto won't complete its first orbit since its discovery until the year 2178, when it will once again appear in Gemini. For now, although you can't see it, you can at least see its location.