Its astounding features include: locations of the sun and moon in the zodiac, Julian calendar, Gregorian calendar, sidereal time, Greenwich mean time, local time with daylight saving time and leap year, solar and lunar cycle corrections, eclipses, local sunset and sunrise, moon phases, high and low tides, sunspot cycles and a complete planetarium including Pluto's 248 year orbit and the 25,800 year period of the polar ecliptics (precession of the Earth's axis). It has a high degree of accuracy, having an error of only 7 seconds per 1000 years.