Tourist places in usa for A tail’s curvature and length are typically greatest just after the comet’s closest encounter with the Sun, when it is traveling fastest and is at its most productive. In the case of a comet steeply inclined to the plane of Earth’s orbit around the Sun the ecliptic; see ig and ig, this curvature may be very apparent to Earth-dwellers, and the dust tail may seem wider and be easily distinguishable from the gas tail. However, where a comet’s orbit is angled narrowly to the ecliptic plane, the dust tail will generally appear to Earth-dwellers to be narrower, straighter, brighter, and longer, and will combine with the gas tail to form a single tail. Some comet tails are mindbogglingly large. Especially long and wide tails are associated with very productive comets that begin reacting to the Sun when far from it. Some hyperactive small nuclei like that of Hyakutake produce extraordinarily long tails. But the dream scenario for a long comet tail is a large, very volatile nucleus. Tourist places in usa 2016.