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We have already seen that this view of the origin of comets is consistent with thethe nature of their orbits; and the proof, the ensuing, muchmore serious than stated. Most cometary orbits are ranked toparabolic; commonly assume that comets are remotespaces and never returned. But do not mistakenly addedtheir orbits to parabolic? Observations of the comet moving inextremely eccentric ellipse, is possible only when itis relatively close to perihelion, making it impossible to distinguish itorbit from a parabola. Obviously, it would be risky to classify it to the parabolaonly due to the fact that it is impossible to find in it the elements of the ellipse. Thoughthe just-mentioned difficulty is an inevitable consequencethe extreme eccentricity of the orbit, however, it is possible thatcomets have elliptical orbits. Although five or six of themconsidered to be hyperbolic, however, as I learned from a manpay special attention to comet, "this orbit has not been calculated norfor one well-observed comets." Therefore, it is highly possible thatthe essence of all the orbits ellipses. Ellipses and hyperbolas have an infinite variety offorms, but there is only one form of a parabola, or, more precisely, allparabolas are similar among themselves, while there are an infinite numberdistinguished from one another the ellipses and hyperbole. Consequently, allheading to the Sun from distant space must be accuratethe amount of proper motion to describe a parabola; any otherthe number would give hyperbolas or ellipses. If there is no hyperbolic orbits, thenthe vast majority the likelihood is that all orbits are elliptical. Theythese would be, if the comet had above expectedorigin.
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