It is called the solstice. In the northern hemisphere it is the summer solstice on June 20th or 21st. In the southern hemisphere it is the winter solstice on December 21st or 22nd. The shortest day of the year occur on the same dates in the opposite hemispheres.
The change in the length of the day is due to the tilt of the Earth. You will have your longest day of the year when you live of the part of the Earth that is tilted towards the Sun.
Mercury has the 2nd longest "sidereal day" with a sidereal rotation period of 58.646 Earth days. The longest "sidereal day" day is Venus, with a sidereal rotation period of 243.018 Earth daysIf you use the "solar day" as your definition of "day", the order is reversed. Mercury then has the longest day and Venus has the second longest day.
False. During the summer solstice, a location will have its longest day and most direct sunlight. This occurs when the Earth's axial tilt is angled towards the Sun, resulting in the longest period of daylight of the year.
Daylight is longest during the summer solstice, which occurs around June 21 in the Northern Hemisphere. On this day, the tilt of the Earth's axis is such that the Northern Hemisphere is tilted closest to the sun, resulting in the longest period of daylight. In the Southern Hemisphere, the opposite occurs, and the longest day happens around December 21.
Mercury has the longest cycle of day and night among the terrestrial planets. A day on Mercury lasts about 176 Earth days, which is longer than a year on Mercury. This is because Mercury rotates very slowly on its axis.
Venus. The length of "day" is 243 Earth days. That's the rotation period which is called a "sidereal day". However, there's also a "day" called the "solar day". That's the time for the Sun to complete one apparent journey around the sky. For that definition of "day", it is Mercury that has the longest day at about 176 Earth days.
The change in the length of the day is due to the tilt of the Earth. You will have your longest day of the year when you live of the part of the Earth that is tilted towards the Sun.
This depends where you are on the earth. The closer you are to a pole of the earth, the longer the day will be.
Venus. Its day is -243.0185 Earth days long. The "minus" means it rotates in the direction opposite to the Earth and all the other planets (except Uranus). Another viewpoint: That's the time to spin once, called the "sidereal day". The "solar day" is defined in a different way and is only about 116.75 Earth days long for Venus. On that definition, it is Mercury that has the longest day (about 176 Earth days.)
Mercury has the 2nd longest "sidereal day" with a sidereal rotation period of 58.646 Earth days. The longest "sidereal day" day is Venus, with a sidereal rotation period of 243.018 Earth daysIf you use the "solar day" as your definition of "day", the order is reversed. Mercury then has the longest day and Venus has the second longest day.
Equinox
i believe it was just called that because it lasted all day.
Because you're living on Bizarro World? On Earth, the summer solstice is the longest day of the year.
The longest day in the year is the summer solstice. It occurs between June 20th and June 22th.
Summer Solstice
Venus or Mercury, depending in the type of "day" that you mean. A "day" on Venus is -243.0185 Earth days long. The "minus" means it rotates in a direction opposite the Earth and all the other planets (except Uranus). This "day " is the rotation period, called the "sidereal day". However there's also the "solar day". That's roughly "sunrise to sunrise". The solar day depends on a planet's orbital motion, as well as its rotation. Venus has a solar day of about 116.5 Earth days. For the solar day it's Mercury that has the longest day, because of the direction of rotation of Venus. Mercury has a solar day of about 176 Earth days. Comment: The "related link" given below isn't really related. It about the movie called "The Longest Day".
The first day of summer...for 2011 the 21st /It's merely the longest day in terms of sunshine per day. In general all days are equally long because that's how we measure our timeline. However when the "longest sunny day of the year" occur is entirely depending on where you live on earth. longest sunshine would be if you lived as near the poles center as you can.