The Moon goes through phases as it orbits Earth鈥攏ew, first quarter, full, and third quarter. The Moon's orbital period matches its rotational period keeping the same side pointed toward Earth. During phases other than new or full, we see part of the Moon in sunlight and part in ...
(1,221,830 km), and has equal orbital and rotational periods of 15.9454 earth days. Titan was discovered by the Dutch physicist ChristiaanHuygensin 1655. Titan was thought to be the largest satellite in the solar system until recently, when it was recognized that estimates of its size had ...
Isaac Newtonused lunar observations in developing his theory ofgravitationin the late 17th century, and he was able to show some effects of solar gravity in perturbing the Moon’s motion. By the 18th and 19th centuries the mathematical study of lunar movements, both orbital and rotational...
Mean distance from Jupiter (km) 670,900 Rotational period (days) 3.551181 Orbital period (days) 3.551181 Mean orbital velocity (km/sec) 13.74 Orbital eccentricity 0.009 Orbital inclination (degrees) 0.470 Escape velocity (km/sec) 2.02 Visual geometric albedo 0.64 Magnitude (Vo) 5.29Animations...
Extremely slow recession of the Moon from the Earth has been recently proposed and attributed to conversion of Earth’s axial spin to lunar orbital momentum. This hypothesis is inconsistent with long-standing recognition that the Moon’s orbit involves three-body interactions. This and other short-...
Rotational period (days) 27.32166 Orbital period (days) 27.32166 Average length of lunar day (days) 29.53059 Mean orbital velocity (km/sec) 1.03 Orbital eccentricity 0.0549 Tilt of axis (degrees) 1.5424 Orbital inclination (degrees) 5.1454 Equatorial surface gravity (m/sec^2) 1.62 Equatorial escape...
If the Moon didn't spin at all, then eventually it would show its far side to the Earth while moving around our planet in orbit. However, since the rotational period is exactly the same as the orbital period, the same portion of the Moon's sphere is always facing the Earth. ...
The workers in this workshop do day and night shifts in weekly rotation.这个车间的工人上白班和上夜班每周轮换一次。 10rotational adj.回转的,轮流的 参考例句: A synchronous motor drives the measuring bob at a constant rotational speed.同步马达驱动测锤以恒速旋转。
1、The Moon 月球 (英)The Moon is the only natural satellite of Earth:orbit: 384,400 km from Earthdiameter: 3476 kmmass: 7.35e22 kgCalled Luna by the Romans, Selene and Artemis by the Greeks, and many other names in other mythologies.The Moon, of course, has been known since ...
Mean distance from Jupiter (km) 127,969 Rotational period (days) ? Orbital period (days) 0.294779 Mean orbital velocity (km/sec) 31.57 Orbital eccentricity 0.0000 Orbital inclination (degrees) 0.0000 Escape velocity (km/sec) 0.0253 Visual geometric albedo 0.05 Magnitude (Vo) 17.5 ...