Pluto. It was lucky fluke; the calculations were all wrong and there was no "planet X" out there.
that would be Uranus with is 90 degree tilt.
People discovered that the periods of sunlight and darkness were variable many millennia ago, as soon as they had the earliest timekeeping tools. So they also discovered that twice during the year, the days and nights were of equal length. That's the "equinox".
Polaris, also called the North Star and the Pole Star, is situated within about 2/3 of a degree of the North Celestial Pole.
The difference in Mercury's day-side temperature and night-side temperature can be over 1,000 degrees. Mercury is the smallest planet in the Milky Way galaxy, and has no rings around it.
Yes it has seasons. The main cause of seasons is usually the tilt of a planet's axis. However Mercury has an axial tilt of less than one degree. In the case of Mercury it is the large variations in its distance from the Sun that cause seasons.
He is a French astronomer who co-discovered the planet Neptune. His mathematical prediction of where the planet would be found was accurate within a degree.
Neptune was not discovered by a satellite, it was discovered 23 September 1846 by Johann Galle using a telescope, within a degree of the position predicted by Urbain Le Verrier using calculations.
Astronomers saw some deviations from the expect orbit of the planet Uranus. Based on these deviations, some theorized that Uranus was being pulled out of its expect orbit by another planet, which turned out be Neptune.
Every year the planet shifts a little bit to a different degree on it's axis, on 2012 dec 21, the planet will be in the exact position it was when the ancient civilizations started cuonting time,it would make a total 360* degree rotation . The constalaions will be in the same position they were a long time ago ( or that's at least what I've heard )
uranus
Venus
Jupiter and Saturn are visible to the naked eye and have thus been know since ancient times (thus nobody knows who first discovered them).Although Uranus is visible to the naked eye, it was never recognized as a planet by ancient observers because of its dimness and slow orbit. Sir William Herschel announced its discovery on March 13, 1781.Neptune was the first planet found by mathematical prediction rather than by observation. Unexpected changes in the orbit of Uranus led Alexis Bouvard to deduce that its orbit was subject to gravitational perturbation by an unknown planet. Neptune was subsequently observed on September 23, 1846 by Johann Galle within a degree of the position predicted by Urbain Le Verrier.
Horizontal position is strate 90 degree
A Global Positioning System (GPS) device is a technological device using advance space/satellite technologies to pinpoint the position of the device anywhere on the planet to a high degree of accuracy.
Uranus, because of its (close to) 180 degree axial tilt.
Uranus.
No "planet" does this to any significant degree, but the Sun certainly does, a star.