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- Dictionaryorbit/ˈɔːbɪt/
noun
- 1. the curved path of a celestial object or spacecraft round a star, planet, or moon, especially a periodic elliptical revolution: "the Earth's orbit around the sun" Similar
- 2. an area of activity, interest, or influence: "audiences drawn largely from outside the Party orbit" Similar
verb
- 1. (of a celestial object or spacecraft) move in orbit round (a star or planet): "Mercury orbits the Sun"
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Jun 19, 2024 · The orbit of a planet is an ellipse with the Sun at one of the two foci. A line segment joining a planet and the Sun sweeps out equal areas during equal intervals of time. The square of a planet's orbital period is proportional to the cube of the length of the semi-major axis of its orbit.
6 days ago · The Sun orbits the Galactic Center at a distance of 24,000 to 28,000 light-years. From Earth, it is 1 AU ( 1.496 × 10 8 km ) or about 8 light-minutes away. Its diameter is about 1,391,400 km ( 864,600 mi ), 109 times that of Earth.
6 days ago · They used Jupiter's roughly 12-year orbit along the ecliptic to define the constellations of their zodiac. The mythical Greek name for this planet is Zeus (Ζεύς), also referred to as Dias (Δίας), the planetary name of which is retained in modern Greek.
Jun 19, 2024 · The planet orbits the Sun in a path that is presently more nearly a circle (less eccentric) than are the orbits of all but two of the other planets, Venus and Neptune. Earth makes one revolution, or one complete orbit of the Sun, in about 365.25 days.
6 days ago · International Space Station (ISS), space station that was assembled in low Earth orbit largely by the United States and Russia, with assistance and components from a multinational consortium. Learn more about the International Space Station in this article.
Jun 19, 2024 · Its orbit was tracked in archival images as far back as 2004. It orbits between Larissa and Proteus, two moons discovered by Voyager. Properties of the known Neptunian moons are summarized in the table, with names and orbital and physical characteristics.
Jun 19, 2024 · the 23° tilt of the Earth's rotational axis. the fact that the Earth moves around the Sun in an elliptical orbit. When a planet moves in an elliptical orbit, it moves faster when it is at perihelion than when it is at aphelion.
Jun 20, 2024 · Atomic orbitals are wavefunctions describing the probability distribution of an electron orbiting an atom. While it is impossible to know the exact location of an electron at a given time, the orbital can be used to determine the energy of the electron.
Jun 18, 2024 · The velocity of an electron in the Bohr orbit is given by a similarly simplified formula. $ v = 2.18 \times {10^6} \times \dfrac {z} {n} $. For hydrogen atom with atomic number one, the formula becomes $ {v_n} = 2.18 \times {10^6} \times \dfrac {1} {n} $.
Jun 19, 2024 · In physics, angular momentum (sometimes called moment of momentum or rotational momentum) is the rotational analog of linear momentum. It is an important physical quantity because it is a conserved quantity – the total angular momentum of a closed system remains constant.
