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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 ).
Time-lapse sequence from the approach of Voyager 1 to Jupiter in 1979, showing the motion of atmospheric bands, and the circulation of the Great Red Spot. The momentary black spots are shadows cast by Jupiter's moons. Jupiter's Great Red Spot rotates counterclockwise, with a period of about 4.5 Earth days, [24] or 11 Jovian
why does Jupiter rotate round its axis so fast? [ edit ] its period is the planet's shortest, at 9h 50m 30.0s -- Akbarmohammadzade ( talk ) 09:49, 13 November 2011 (UTC) [ reply ] we are preparing new results for way of explaining reason of Jupiter’s' fast rotation.--
[59] [60]: 6 Jupiter's radius is about one tenth the radius of the Sun, [61] and its mass is one thousandth the mass of the Sun, as the densities of the two bodies are similar. [62] A "Jupiter mass" (M J or M Jup) is used as a unit to describe masses of other objects, particularly extrasolar planets and brown dwarfs.
It may also refer to the time it takes a satellite orbiting a planet or moon to complete one orbit. For celestial objects in general, the orbital period is determined by a 360° revolution of one body around its primary, e.g. Earth around the Sun. Periods in astronomy are expressed in units of time, usually hours, days, or years.
Mars, Jupiter, Uranus, Neptune, Venus and Saturn will align in the sky on Jan. 21, resulting in both astronomical and astrological significance in the cosmos January's Rare Planet Parade Will Have ...
One quadrillionth of a second. Pulse time on fastest lasers. svedberg: 10 −13 s: Time unit used for sedimentation rates (usually of proteins). picosecond: 10 −12 s: One trillionth of a second. nanosecond: 10 −9 s: One billionth of a second. Time for molecules to fluoresce. shake: 10 −8 s: 10 nanoseconds, also a casual term for a short ...
From May 25, 2024 to June 9, 2025, the expensive planet Jupiter will be transiting the sign of Gemini for the first time in 12 years. Jupiter will stay in the air sign for the next 12 months ...