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If the Sun–Neptune distance is scaled to 100 metres (330 ft), then the Sun would be about 3 cm (1.2 in) in diameter (roughly two-thirds the diameter of a golf ball), the giant planets would be all smaller than about 3 mm (0.12 in), and Earth's diameter along with that of the other terrestrial planets would be smaller than a flea (0.3 mm or 0. ...
Jupiter and Saturn have several large moons, such as Io, Europa, Ganymede and Titan, which may have originated from discs around each giant planet in much the same way that the planets formed from the disc around the Sun. [88] [89] [90] This origin is indicated by the large sizes of the moons and their proximity to the planet. These attributes ...
Since this value is close to zero, the center of the orbit is relatively close to the center of the Sun (relative to the size of the orbit). As seen from Earth, the planet's orbital prograde motion makes the Sun appear to move with respect to other stars at a rate of about 1° eastward per solar day (or a Sun or Moon diameter every 12 hours).
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.
Furthermore, to the extent that a planet's mass cannot be neglected in comparison to the Sun's mass, the center of gravity of the Solar System is displaced slightly away from the center of the Sun. [138] (The masses of the planets, mostly Jupiter, amount to 0.14% of that of the Sun.)
The terms "nursery rhyme" and "children's song" emerged in the 1820s, although this type of children's literature previously existed with different names such as Tommy Thumb Songs and Mother Goose Songs. [1] The first known book containing a collection of these texts was Tommy Thumb's Pretty Song Book, which was published by Mary Cooper in 1744 ...
A typical song on Gracie’s Corner, starring 10-year-old Graceyn, combines educational songs or nursery rhymes with modern beats from multiple genres, including hip-hop and Afrobeats, displayed ...
9.257 billion years (4.543–4.5 Gya): Solar System of Eight planets, four terrestrial (Mercury, Venus, Earth, Mars) evolve around the Sun. Because of accretion many smaller planets form orbits around the proto-Sun some with conflicting orbits – Early Heavy Bombardment begins. Precambrian Supereon and Hadean eon begin on Earth.