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Originally intended to de-orbit into the Jovian atmosphere after 2021, now operating until 2025. Launched: 5 August 2011; Destination: Jupiter; Arrival: 4 July 2016; Institution: NASA; New Horizons. Mission: the first spacecraft to study Pluto up close, and ultimately the Kuiper Belt. It was the fastest spacecraft when leaving Earth and will be ...
The north orbital poles of the Solar System major planets all lie within Draco. [1] The central yellow dot represents the Sun's rotation axis north pole. [citation needed] Jupiter's north orbital pole is colored orange, Mercury's pale blue, Venus's green, Earth's blue, Mars's red, Saturn's magenta, Uranus's grey, and Neptune's lavender.
Draw a line between the two planets, then follow that line upwards to find Jupiter high overhead. Sky chart showing the planets visible to the naked eye after dark in January. NASA/JPL-Caltech
On a prograde planet like the Earth, the sidereal day is shorter than the solar day. At time 1, the Sun and a certain distant star are both overhead. At time 2, the planet has rotated 360° and the distant star is overhead again (1→2 = one sidereal day). But it is not until a little later, at time 3, that the Sun is overhead again (1→3 = one solar day). More simply, 1→2 is a complete ...
The planets will be together in the night sky throughout the rest of January and February. ... Jupiter high overhead and Mars in the east. The Red Planet will also be reaching “opposition ...
A Sun-synchronous orbit is useful for imaging, reconnaissance, and weather satellites, [4] because every time that the satellite is overhead, the surface illumination angle on the planet underneath it is nearly the same.
The ecliptic remains within 3° of the invariable plane over five million years, [2] but is now inclined about 23.44° to Earth's celestial equator used for the coordinates of poles. This large inclination means that the declination of a pole relative to Earth's celestial equator could be negative even though a planet's north pole (such as ...
The subsolar point on a planet or a moon is the point at which its Sun is perceived to be directly overhead (at the zenith); [1] that is, where the Sun's rays strike the planet exactly perpendicular to its surface. The subsolar point occurs at the location on a planet or a moon where the Sun culminates at the location's zenith. This occurs at ...