The known planets in the solar system, in order of their average distance
from the sun, from nearest to farthest, are . . .
-- Mercury
-- Venus
-- Earth
-- Mars
-- Jupiter
-- Saturn
-- Uranus
-- Neptune
-- Pluto**
** Pluto has been redefined as a "dwarf planet".
The "outer planets" refers to the four farthest planets from the Sun (the four largest planets, all gas giants) : Jupiter, Saturn, Uranus and Neptune. Pluto, once considered the ninth planet, is currently classed as a dwarf planet.
Memory Aid
The mnemonic "My Very Excited Mother Just Served Us Nachos" can provide the names and order for all of the planets : "Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune".
Jupiter, Saturn, Uranus, Neptune.
It depends on how you define "day". A "solar day" is roughly from sunrise to the following sunrise, or more exactly noon to noon. A "sidereal day" is one complete rotation of a planet relative to the background stars. The orbit of the planet around the Sun affects how the sidereal day is related to the length of the solar day.
Mercury has a solar day longer than its year.
Venus has a sidereal day longer than its year.
Mercury takes 88 Earth days to go around the Sun. But it spins very slowly on its axis, once every 58.6 Earth days relative to background stars. Because it is turning as it orbits, the solar day (sunrise to sunrise) on Mercury takes 176 Earth days, which is twice the length of its year.
Venus takes 243 Earth days to spin on its axis relative to the background stars (its "sidereal day"). It takes 224.7 Earth days to orbit the Sun. Its rotation, moreover, is clockwise, unlike the Earth and most other planets. Because of this reverse rotation, and its slowness compared with the orbital period, a "solar day" is only 116.75 Earth days.
(see the related link below)
In elipses. The Sun is at one of the focal points of the elipse.
In elipses. The Sun is at one of the focal points of the elipse.
In elipses. The Sun is at one of the focal points of the elipse.
In elipses. The Sun is at one of the focal points of the elipse.
Everywhere on earth at some point of the year has longer night time than daylight time between the Autumnal Equinox and Vernal Equinox. (Equinox literally means equal night). The further you are from the equator the greater the difference between day and night
For 2010 / 2011
In the northern hemisphere this is between September 22nd, 2010 and March 20th, 2011. In the Southern Hemisphere this is between March 20th, 2010 and September 22nd, 2010.
The planet with the longest day and night is Mercury. The time between sunrises is roughly 176 Earth days.
It is NOT Venus. The time between sunrises on Venus is roughly 117 Earth days
(the solar day) and not 243 Earth days (the sidereal day)
The order, from shortest day to longest day is: Jupiter, Saturn, Neptune, Uranus, Earth, Mars, Mercury, Venus.
That's for the rotation periods, called "sidereal days".
The order of Mercury and Venus are reversed if you mean the "solar day".
The line between light and dark is constantly moving - or, to be more accurate, the line is perfectly stationary while the Earth spins beneath it.
The sunrise/sunset line between day and night is called the "terminator".
Generally, the outer planets are called Gas Giants, however, Uranus and Neptune are now referred to as Ice Giants.
In elipses. The Sun is at one of the focal points of the elipse.
The planet is Mercury. (Some people think it is Venus, but it is Mercury.)
That is Uranus.
If you mean the longest: When you have the longest day, you'll also have the shortest night, and vice versa. In the northern hemisphere, the longest day is around June 21, and the shortest day is around December 21. In the southern hemisphere, it is the other way round.
It depends where you are on the planet. For most of the planet the day-night sequence is repeated every 24 hours. However at the poles the day night sequence is repeated only once every year.
The longest day and shortest night occurs on the summer solstice. The shortest day and longest night occurs on the winter solstice. Midway between these points (2x a year) are the equinox, where the day and night are of equal length.
The planet is Mercury. (Some people think it is Venus, but it is Mercury.)
Mercury. It has the longest cycle of ALL the planets, not just terrestrial.
no,planet has a star day and night
That is Uranus.
The first day of summer - on/about June 21 is the longest day and shortest night.
During its rotation around its own axis half of the planet faces the sun [day] and half faces away from the sun [night] As the planet continues to turn so night slowly turns into day and then day into night and so on.
20th June is the shortest day and longest night and it falls on a Sunday, so have a sleep in!
Quote from a related question: "Alaska has the longest day of the year in the U.S. No sunset for 82 days in summer. Alaska also has the longest night with no sunrise for 67 days in winter"
If you mean the longest: When you have the longest day, you'll also have the shortest night, and vice versa. In the northern hemisphere, the longest day is around June 21, and the shortest day is around December 21. In the southern hemisphere, it is the other way round.
It doesn't. Day and night are planetary phenomena caused by the rotation of the planet.
The winter solstice.
Winter solstice is the longest night, summer solstice is the longest day. Opposite is equinox when night and day are exactly the same length.