There are 365 days in a year. If it is a leap-year, then there are 366 days.
There are 365 days in a year.
In the normal year, there are 365 days.
There are 365 days in a year except leap year when there are 366 days.
There are 366 days in a leap year!
The planets revolve around the sun each year. The year for each planet is different because it either takes the planet longer or shorter to get around the sun than other planets. The year of each panet is mesured by how many Earth days or years it takes to get around the sun.Length of Planetary Year in Earth Days/Years:Mercury: 88 daysVenus: 225 daysEarth: 365.25 daysMars: 687 days or 1.88 yearsJupiter: 4,331.5 days or 11.86 yearsSaturn: 10,832 days or 29.46 yearsUranus: 30,799 days or 84 yearsNeptune: 60,190 days or 165 yearsPluto (dwarf planet): 90,410.5 days or 247.7 years
In Sol, that would be Uranus. If you include dwarf planets, Eris.
The approximate orbital period of the 8 planets in Earth days and years: Mercury : 88 days (0.24 year) Venus: 225 days (0.615 year) Earth : 365.25 days (1 year) Mars : 687 Earth days (1.88 years) Jupiter: 4333 days (11.86 years) Saturn: 10759 days (29.46 years) Uranus: 30799 days (84.32 years) Neptune: 60190 days (164.79 years) *Dwarf planet Pluto: 90613 days (248.09 years)
The revolution times (Years) of the planets, in Earth days, is:-Mercury is 88 daysVenus is 224.7 daysEarth is 365.24 daysMars is 686.961 daysJupiter is 4,331.572 days or 11.86 yearsSaturn is 10,832.327 days or 29.46 yearsUranus is 30,799.095 days or 84.323 yearsNeptune is 60,190 days or 164.79 years*Pluto is 248 days.*Pluto is no longer a planet but a dwarf planetSee related question for rotational times (Days)
365 days
The Dawn space probe will begin orbiting Ceres in February 2015. The New Horizons probe will do a flyby of Pluto in June 2015. No other dwarf planets will be visited that year.
The length of a day on a dwarf planet can vary depending on its rotation speed. For example, on Pluto, a day lasts about 6.4 Earth days. A dwarf planet's year is determined by its orbital period around the Sun, which can range from several Earth years for bodies like Pluto to over 248 Earth years for bodies like Eris.
Mercury has a year that is only 88 days long.
A year on Makemake, a dwarf planet in the outer solar system, is equivalent to 309 Earth years. This means that a year on Makemake consists of approximately 112,635 days.
If you count a dwarf planet, then yes: Eris was discovered in 2003 (but not identified until 2005). It is currently three times further from the sun than Pluto. Eris is larger than Pluto, and before the term "dwarf planet" was officially adopted in 2006, it was suggested that Eris had to be considered the solar system's tenth planet. If you don't count dwarf planets, then we actually lost a planet since the year 2000: In 2006, Pluto was downgraded from a planet to a "dwarf planet". In the year 2000 our solar system officially had nine planets, now it has eight. But it has three dwarf planets (Eris, Pluto, and Ceres).
The same planets that orbit today, though Uranus and Neptune had yet to be discovered, along with Pluto (now regarded as a Dwarf Planet).
Mercury, whose year is about 88 Earth days.