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In astronomy, the rotation period or spin period [1] of a celestial object (e.g., star, planet, moon, asteroid) has two definitions. The first one corresponds to the sidereal rotation period (or sidereal day), i.e., the time that the object takes to complete a full rotation around its axis relative to the background stars (inertial space).
However, calculations from the Cassini probe showed that there is a discrepancy in numbers and there is a gap in the understanding and calculating of the Saturn's rotation time. The problem is that the components of Saturn's atmosphere, especially hydrogen and helium, travel at different speeds and do not attest to Saturn's own rotation. [8]
The bright auroral features are observed to rotate with the angular speed of 60–75% that of Saturn. From time to time bright features appear in the dawn sector of the main oval or inside it. [ 41 ] The average total power emitted by the aurorae is about 50 GW in the far ultraviolet (80–170 nm) and 150–300 GW in the near-infrared (3–4 ...
Saturn's Hexagon Comes to Light, APOD January 22, 2012; In the Center of Saturn's North Polar Vortex, Astronomy Picture of the Day – December 4, 2012; Video of hexagon's rotation from NASA; NASA's Cassini Spacecraft Obtains Best Views of Saturn Hexagon (December 4, 2013) Animated vortex view (TPS) Hexagon image; Saturn's Hexagon Replicated In ...
The orbital period (also revolution period) is the amount of time a given astronomical object takes to complete one orbit around another object. In astronomy, it usually applies to planets or asteroids orbiting the Sun, moons orbiting planets, exoplanets orbiting other stars, or binary stars.
The planets rotate around invisible axes through their centres. A planet's rotation period is known as a stellar day. Most of the planets in the Solar System rotate in the same direction as they orbit the Sun, which is counter-clockwise as seen from above the Sun's north pole.
At that time, Saturn was in the same sign that is now. Being that it’s 30 years later, the iconic tune is going through its karmic Saturn Return. In astrology, a Saturn Return is the entrance ...
A synodic day (or synodic rotation period or solar day) is the period for a celestial object to rotate once in relation to the star it is orbiting, and is the basis of solar time. The synodic day is distinguished from the sidereal day, which is one complete rotation in relation to distant stars [1] and is the basis of sidereal time.