If parameter e is smaller than one, e is the eccentricity and a the semi-major axis of an ellipse.

:‘ If to collect cigarette cards is a sign of eccentricity, how then will posterity judge one who amassed the biggest collection in the world?

If one of them ( like eccentricity ) is significant and the other is practically zero ( as is the case on Jupiter, with a 3 degree tilt only ), you get something much closer to an ellipse.

Note that non-elliptic orbits also exist ; If the eccentricity is greater than one, the orbit is a hyperbola.

If the eccentricity is equal to one and the angular momentum is zero, the orbit is radial.

If the eccentricity is one and there is angular momentum, the orbit is a parabola.

If the belt has existed for longer than this period, which appears likely, it imposes an upper limit on Epsilon Eridani b's eccentricity of about 0. 10 – 0. 15.

If the dust disk is instead being generated from the outer debris disk, rather than from collisions in an asteroid belt, then no constraints on the planet's orbital eccentricity are needed to explain the dust distribution.

If only the eccentricity of the orbit is reduced to zero, the result is a geosynchronous orbit.

If the Earth were the only planet orbiting our Sun, the eccentricity of its orbit would not perceptibly vary even over a period of a million years.

If the mass of the smaller body ( e. g. Earth ) is m, and it orbits a heavier body ( e. g. Sun ) of mass M with a semi-major axis a and an eccentricity of e, then the radius r of the Hill sphere for the smaller body ( e. g. Earth ) is, approximately

If a frozen orbit design is used these very small orbit raising manoeuvres are sufficient to also control the eccentricity vector.

If the central body is the Earth, and the energy is only slightly larger than the potential energy at the surface of the Earth, then the orbit is elliptic with eccentricity close to 1 and one end of the ellipse just beyond the center of the Earth, and the other end just above the surface.

A conic is defined as the locus of points for each of which the distance to the focus divided by the distance to the directrix is a fixed positive constant, called the eccentricity e. If e is between zero and one the conic is an ellipse ; if e = 1 the conic is a parabola ; and if e > 1 the conic is a hyperbola.

If the distance to the focus is fixed and the directrix is a line at infinity, so the eccentricity is zero, then the conic is a circle.

If the cone is oriented with its axis being vertical, the eccentricity is

If the object is not an SDO as per the above definition, but the eccentricity of its orbit is greater than 0. 240, it is classified as a detached TNO.

If f is continuously differentiable, then it is K-quasiconformal if the derivative of at every point maps circles to ellipses with eccentricity bounded by K.

If, when this was all over, she found the words to tell him about it, she wondered if he would ever understand.

If you don't leave this country within 3 days, your life will be taken the same as Powell's was.

If we was both armed, you wouldn't talk so tough ''.

If it were the enemy, tactically his position was correct.

If the turn was too tight, a barrel roll would bring them out.

If it were not that I knew who it was I could have mistaken it for my Aunt so well did her clothes fit him.

If Franklin was an authentic genius, then Alexander Hamilton, with his exceptional precocity, consuming energy, and high ambition, was a political prodigy.

`` If you can conveniently let me have twenty dollars '', he wrote one friend in 1791 when he was Secretary of the Treasury.

If an automobile were approaching him, he would know what was required of him, even though he might not be able to act quickly enough.

If living Jews were unavailable for study, the Bible was at hand.

If there was ever a thought in her mind she might devote her life to religion, it was now dispelled.

If his scholarship and formal musicianship were not all they might have been, Mercer demonstrated at an early age that he was gifted with a remarkable ear for rhythm and dialect.

If she were not at home, Mama would see to it that a fresh white rose was there.

If, as Reid says, `` nearly all his poetry was produced when he was not taking opium '', there may be some reason to doubt that he was under its influence in the period from 1896 to 1900 when he was writing the poems to Katie King and making plans for another book of verse.

If Robinson was a liar and a slanderer, he was also a very canny gentleman, for nothing that Pike could do would pry so much as a single word out of him.

If his circumspection in regard to Philip's sensibilities went so far that he even refused to grant a dispensation for the marriage of Amadee's daughter, Agnes, to the son of the dauphin of Vienne -- a truly peacemaking move according to thirteenth-century ideas, for Savoy and Dauphine were as usual fighting on opposite sides -- for fear that he might seem to be favoring the anti-French coalition, he would certainly never take the far more drastic step of ordering the return of Gascony to Edward, even though, as he admitted to the English ambassadors, he had been advised that the original cession was invalid.

If the historian was convinced of his own correctness, then he should not allow his vision to become fogged by disturbing facts.

If their schedules were to synchronize, there was no point in wasting time.

If he had any worries, it was only the small ones, about Mother in New York, and his daughter Edwina and what she might be doing at this hour, with her Aunt Asia, in Philadelphia.

If man is actually the product of his environment and if science can discover the laws of human nature and the ways in which environment determines what people do, then someone -- a someone probably standing outside traditional systems of values -- can turn around and develop completely efficient means for controlling people.

If you would like to start your tour in Italy, where the rental fees are actually the lowest in Europe, Fiats in all sizes are available, as are Alfa Romeo Giulietta models.

If this threefold division of costs were to have its counterpart in the actual rates of charge for service, as it actually does have in some rates, there would result a three-part rate for any one class of service.

If, conversely, tin is used to coat steel, when a breach of the coating occurs it actually accelerates oxidation of the iron.

If one of the intervening states was a superpower, a civil war is extended a further 72 %; a conflict such as the Angolan Civil War, in which there is two-sided foreign intervention, including by a superpower ( actually, two superpowers in the case of Angola ), would be 538 % longer on average than a civil war without any international intervention.

If each pixel on the display actually contains three rectangular subpixels of red, green, and blue, in that fixed order, then things on the screen that are smaller than one full pixel in size can be rendered by lighting only one or two of the subpixels.

If a display does not have the type of fixed pixels that ClearType expects, text rendered with ClearType enabled actually looks worse than type rendered without it.

If someone decides to donate to help orphan children, but decides to donate less, say, to black children out of a racist attitude, he or she will be acting in a discriminatory way even the people he discriminates against are actually benefitted by having some money donated to them.

If it is negative, that means that the investment decision would actually lose money even if it appears to generate a nominal profit.

If the project were actually completed at week 8, then the project would actually be well under budget and well ahead of schedule.

If such an extraordinary event had actually taken place ... could the king have withstood the attitude of the native nobles, who would hardly have looked upon such an occurrence without offering armed resistance to their feeble and capricious sovereign?

If the statement is a lie, then he is not actually lying, even though the statement is a lie.

If the network actually is a small-world network, Freenet should find data reasonably quickly ; ideally on the order of hops.

If the facts are related, this would be a unique case of a tradition that endured for more than a thousand years and that actually pre-dates most of the major splits in the Germanic language family.

If, supposing it turns out that the original Ship of Theseus, S1, was actually stolen property, and the rightful owner demands its return, should the police give him S2 or S3?

If we attribute its apparent rate of rotation entirely to rotation in an inertial frame, a different " flatness " is predicted than if we suppose part of this rotation actually is due to rotation of the Universe and should not be included in the rotation of the galaxy itself.

If you push on a wall very slowly, you can actually feel your push increasing.

If the population was actually counted, William did not record the number.

If " this sentence is false " is true, then the sentence is false, which would in turn mean that it is actually true, but this would mean that it is false, and so on ad infinitum.

If adults could effectively be baptised through a desire for the sacrament when prevented from actually receiving it, some speculated that perhaps sacramentally unbaptised infants too might be saved by some waterless equivalent of ordinary baptism when prevented.

If one is willing to be satisfied without any good supporting reasons, then a Western philosophical approach may not be what one actually requires.

If this is his route, in all likelihood he did not actually circumnavigate Britain, but returned along the coast of Germany, accounting for his somewhat larger perimeter.

If the local court is actually giving extraterritorial effect to a foreign law, it is less than sovereign and so acting in a way that is potentially unconstitutional.

He also is skeptical of the film industry going digital, saying, " If it actually gets to the place where you can't show 35 mm film in theatres anymore and everything is digital projection, I won't even make it to 60.