**by Aslı Pınar Tan **

Based on observation, all heavenly objects in the Solar System and other planetary systems seem to move in some kind of elliptical motion with respect to each other. According to Kepler’s 1^{st} Law, the “orbit of a planet with respect to the Sun is an ellipse, with the Sun at one of the two foci.” The orbit of the Moon with respect to Earth is also distinctly elliptical, but this ellipse has a varying eccentricity as the Moon comes closer to and goes farther away from the Earth in a harmonic style along a full cycle of this ellipse. This is also why we observe Supermoons once in a while.

Aslı Pınar Tan^{1}, who is a Turkish scientist, has recently published her research results in a book^{2} where she proposes^{3}a New Orbital Model for all moving bodies in the Universe. She has mathematically demonstrated and proven that “Distance between points around Two Different Circles in 3-Dimensional space” is equivalent to the “Distance of points around a Vector Ellipse from another point, as in 2-Dimensional space”. This is equivalent to showing that bodies moving on two different circular orbits in space vector-wise behave as if moving on an elliptical path with respect to each other, and virtually seeing each other as positioned at a point in their relative motion plane. Based on her definition of the Vector Ellipse in 3-dimensions, Pınar Tan states that this result is valid whether these bodies are moving with the same angular velocity, or different but fixed angular velocities, or even with different and time-varying angular velocities with respect to their own centres of revolution. This mathematical revelation has the potential to lead to far-reaching discoveries in physics, enabling more insight into forces of nature, with a formulation of a new fundamental model regarding the motions of bodies in the Universe, including the Sun, Planets, and Satellites in the Solar System and elsewhere, as well as at particle and subatomic level.

Pınar Tan is subsequently claiming that it is possible for all moving bodies in the Universe to be revolving around individual circular orbits with shifted centres, which leads to their observed relative elliptic motion based on her mathematical derivation, where each body sees the other body virtually positioned at a point depending on the vector distance between the centres of their circular orbits. This discovery is a scientific breakthrough.

Relatively observed hyperbolic and parabolic trajectories are special cases based on the values of the orbital parameters for the two involved bodies.

She also states that the “individual circular orbit plane” of a moving body in space determines its “equatorial plane” and the tilt of its polar axis is always at 90 degrees with respect to its “individual circular orbit plane”. Therefore, the actual “tilt” of a body in its motion relative to another body must topologically be based on the “orbital inclination angle” between the planes of their individual circular orbits of revolution in space.

With this assumption, and using observed Sun-Earth distance data and Earth-Moon distance data, she has further calculated the possible orbital parameters of the Sun, the Earth, and the Moon according to this New Orbital Model. This calculation and analysis process has revealed additional results aligned with observation, which also support the assertion that the Sun, the Earth, and the Moon must actually be revolving in individual circular orbits. What is more, the resultant Sun-Earth-Moon system topology that she has discovered is outstanding. She expresses that she has found many results and discovered many facts in her analysis, but amongst them, the most significant ones follow.

According to this New Orbital Model, apparently, the Earth is not revolving around the Sun, and the Moon is not directly revolving around the Earth. However, centres of individual circular orbits of the Earth and the Moon revolve around each other, forming a binary system of bodies. The Sun is revolving around a larger individual circular orbit of around 149.9 million km radius, which encompasses those of the Earth and the Moon, with an orbital inclination of -156.56 degrees with respect to the plane of the orbit of the Earth, leading to the observed 23.44 degrees tilt of Earth in its motion relative to the Sun. The Earth is moving around a circular orbit of around 12.4 thousand km radius, significantly smaller than that of the Sun, and the Moon is moving around a circular orbit of around 3.3 million km, with an orbital inclination of about 24 degrees with respect to the plane of the orbit of the Earth.

Pınar Tan says that planets in solar systems do not necessarily directly revolve around their stars, as have been found out for the Earth and the Sun according to the New Orbital Model, and she states that this fact is also supported by observations in recent years about observed exoplanets which do not seem to revolve around their stars, a mystery which has been puzzling Astronomers.

According to her analysis, she further claims that the monthly “libration” of the Moon as observed from Earth must be due to the individual circular revolution of the Moon.

Among her findings of the Sun-Earth-Moon topology are that Earth passes through its zero phases with respect to the Sun around January 17 every year, whereas Earth passes through its zero phases with respect to the Moon around the Spring Equinox in March. Therefore, at any date, the phase of Earth’s position in its individual circular orbit with respect to the Sun and the Moon is about 60 degrees apart. Further, Sun and Earth move around their individual circular orbits with the same angular frequency, with the Earth ahead of the Sun by a constant phase difference of around 151.1 degrees.

Moreover, she has discovered that the vector distance between centres of individual circular revolution orbits of the Earth and the Sun exhibit three distinct main oscillation frequencies over a yearly Sun-Earth cycle. One oscillation is about 12 times a year, which is apparently based on the impact of the relative Earth-Moon motion. The second oscillation is seemingly based on the daily self-rotation of Earth around its own axis. She suggests that the possible cause of the third oscillation, which is about 4 times over a Sun-Earth year, maybe the impact of relative Sun-Mercury motion which has about four cycles over a Sun-Earth year. It is possible that the Sun and Mercury form a twin or binary system of bodies in space, in which Mercury behaves as the Sun’s satellite, similar to the Earth-Moon system, and this also implies the possibility that the individual circular orbits of revolution of the Sun and Mercury may be revolving around each other, to be confirmed when Mercury orbital parameters are determined.

One of Pınar Tan’s most significant findings is the existence of Two Easts and Two Wests in opposite directions for every moving body in space. More explicitly, from a vantage point above the North Pole of a moving body in space, the direction of Revolution around its Individual Circular Orbit is “clockwise”, meaning Revolution Orbit “West” to Revolution Orbit “East”, which she says is what triggers its Self-Rotation in opposite or “counter-clockwise” direction, which is Self-Rotation “West” to Self-Rotation “East”. In her book, she also brings an explanation as to the possible cause of this behaviour, based on Faraday’s Law of Induction.

All of these findings raise the need to re-evaluate existing theories about the formation, the expected emotional behaviour, and the topologies of planetary systems in the Universe, as well as our Solar System.

Aslı Pınar Tan has recently presented^{3} her research results to the general scientific community at COSPAR^{4} Scientific Assembly on February 2, 2021.

- https://www.linkedin.com/in/apinartan/
- https://www.amazon.com/gp/product/B08PVS2FBW
- https://youtu.be/icrxC3qV7-o
- https://www.cospar-assembly.org/admin/session_cospar.php?session=945

**Aslı Pınar Tan** (http://www.linkedin.com/in/apinartan) is an Electrical & Electronics Engineer with Bsc. and Msc. from Bilkent University, Ankara, Turkey, and she also holds a degree in Multi-Disciplinary Space Studies from International Space University, Strasbourg, France. She has been working professionally as a Senior Consultant & Director in Global ICT / Telecom industry, in addition to her academic career in Electromagnetics and Space Applications. These research results published in her book “Everything Is A Circle: A New Model For Orbits Of Bodies In The Universe” are her findings as a result of her personal research, independent from any institution or university.