The current name for this day did not come into use until after World War II. Decoration Day and then Memorial Day used to be held on May 30, regardless of the day of the week, on which it fell. In 1968, the Uniform Holidays Bill was passed as part of a move to use federal holidays to create three-day weekends. This meant that that, from 1971, Memorial Day holiday has been officially observed on the last Monday in May. However, it took a longer period for all American states to recognize the new date.
by Jerry Coffey on June 17, 2008. The orbit of Jupiter, like that of all the planets, is elliptical instead of circular. At perihelion(closest approach) Jupiter comes within 741 million km, or 4.95 astronomical units(AU), of the Sun.t its most distant point, called aphelion, Jupiter is 817 million km, or 5.46 AU from the Sun. The average between perihelion and aphelion is called the semi-major axis. Jupiterâs semi-major axis is 778 million km, or 5.2 AU.
Mars, the fourth planet from the Sun, completes an orbit around the Sun in about 1.8 Earth years, and Jupiter orbits the Sun in 12 Earth years. Though it is the fifth planet from the Sun, it is so far away from the star that it's considered the first of the outer planets. The asteroid belt intervenes between Mars and Jupiter. Saturn orbits in 29.45 Earth years, and it takes Uranus 84 Earth years to complete an orbit. Neptune is so far away from the Sun, and its orbit is so irregular, that there are times when it is farther from the Sun than the dwarf planet Pluto. It completes an orbit around the sun every 248 years.