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How is planet's sidereal year different from its synodic year?
A planet's sidereal year is the time it takes to complete one full orbit around the Sun relative to fixed stars, while its synodic year is the time it takes for the planet to return to the same position in relation to the Earth and the Sun. The synodic year is generally longer than the sidereal year due to the relative motion of Earth and the planet in their orbits. For example, Earth's sidereal year is about 365.25 days, while its synodic year (the time from one vernal equinox to the next) is also about 365.24 days, but for planets like Mars, the difference is more pronounced. This difference affects how we observe and measure planetary positions from Earth.
What's the difference between a sidereal year and a synodic year?
A sidereal year is measured based on the planet's position in space relative to the background stars. A synodic year is measured based on the planet's position relative to the star it rotates around (i.e. the sun) Here's an image that is pretty helpful in visualizing.
What are the two kinds of months that astronomers speak of?
There are two types of months, or calendars, that astronomers use: the lunar and the solar. The solar months are the more familiar calendar and one example of a solar month is January. Lunar months are dependent on the cycles of the moon. One month is considered the time it takes for two occurrences of the same cycle to occur, such as two new moons or two full moons.
What is the relationship between the sidereal and synodic periods in celestial mechanics?
The sidereal period is the time it takes for a celestial body to complete one orbit relative to the fixed stars, while the synodic period is the time it takes for a celestial body to return to the same position relative to the Sun as seen from Earth. The relationship between the two periods is influenced by the relative motion of the Earth and the celestial body, and can vary depending on their orbits and positions.
What is a sidereal month and why is it dfferent than a synodic month?
Synodic month is longer than Sidereal month because when the moon completes 1 revolution round the earth, it will not be a full moon as the earth also moves in its orbit
How long does it taks earth to rotate?
One Day, or 24 hours. Twenty four hours is the rough and commonly understood period of rotation, since we know that a day of universal time is exactly 24 hours in length. But to be more precise, a sidereal rotation of the earth (exactly 360 degrees as observed from the distant stars) takes 23 hours, 56 minutes and about 4.1 seconds. To understand how this can be so, research the difference between sidereal and synodic periods of rotation.
What is the completion if a moons revolution called?
The completion of a moon's revolution around its planet is called an "orbital period" or "lunar month." For Earth’s Moon, this period is approximately 27.3 days, known as the sidereal month. However, the more commonly referenced lunar month in relation to the phases of the Moon is about 29.5 days, called the synodic month.
Why is the lunar month longer than the number of days it takes to orbit the earth?
Because the Moon orbits the Earth whereas the Sun and stars do not. So the Moon has real motion apart from what the rotation of the Earth appears to give it. Thus the Moon rises in the East about 20 minutes sooner every day.
How many months have more than 4 Tuesdays?
5 months
How many years does it take to make a hotel?
Many. It takes months to get the bills and everything taken care of, more months to build it, and even MORE months to get the furniture in, and so on.............
How many days exactly in a year?
365.25 days. If you want a more exact answer you have to specify whether you mean the vernal equinox year, the sidereal year or the tropical year.
How many months are in B months?
It rather depends on what is meant by B months - more info is required!
