Period
Given the orbital eccentricity of this object, different epochs can generate quite different heliocentric unperturbed two-body best-fit solutions to the aphelion distance (maximum distance) of this object. For objects at such high eccentricity, the Suns barycentric coordinates are more stable than heliocentric coordinates. Using JPL Horizons the barycentric orbital elements for epoch 2011-Jan-01 generate a semi-major axis of 537 AU and a period of approximately 12,500 years. This gives it a barycentric orbital period just a little larger than Sedna.
Read more about this topic: Comet Machholz
Famous quotes containing the word period:
“Talent is nothing but a prolonged period of attention and a shortened period of mental assimilation.”
—Konstantin Stanislavsky (1863–1938)
“In a period of a people’s life that bears the designation “transitional,” the task of a thinking individual, of a sincere citizen of his country, is to go forward, despite the dirt and difficulty of the path, to go forward without losing from view even for a moment those fundamental ideals on which the entire existence of the society to which he belongs is built.”
—Ivan Sergeevich Turgenev (1818–1883)
“Stupid word, that. Period. In America it means “full stop” like in punctuation. That’s stupid as well. A period isn’t a full stop. It’s a new beginning. I don’t mean all that creativity, life-giving force, earth-mother stuff, I mean it’s a new beginning to the month, relief that you’re not pregnant, when you don’t have to have a child.”
—Michelene Wandor (b. 1940)