# How many more sidereal months than synodic months are there a year?

1 more sidereal month than synodic month

### Why is a sidereal month and a synodic month not the same length?

Synodic comes from the Latin word synod meaning "meeting" so the moon has to "meet" with the sun every new moon. A synodic month takes 29 1/2 days A Sidereal month takes only about 27 & 1/3 days, THE MOON MUST COMPLETE MORE THAN ONE FULL ORBIT OF EARTH FROM ONE NEW MOON TO THE NEXT. that's why a sidereal & synodic month are not the same length Read More

### What is the difference between sidereal period of the moon and synodic period?

Synodic period relates to an object's position relative to the sun. So the cycle which goes from full moon to full moon is a synodic cycle. A sidereal period is sometimes called a 'star day'. It relates to an object's position relative to the distant stars. We need the distinction when we are talking about bodies in orbit. Because the earth and the moon are orbiting the sun, they have to rotate a little more… Read More

### How many times does the earth spin in a day?

once. ___________ Actually, a little more than once. The synodic period of earth is 24 hours, but the sidereal period is 23 hours 56 minutes 4.1 seconds, roughly. The sidereal period is the time it takes earth to rotate 360 degrees; the added minutes bring the earth to the same position as its starting place, relative to the sun. Read More

### What is The process of one revolution?

If you are talking about bodies in the solar system, then revolution almost always refers to the orbiting motion of a body around another body. This is the motion that gives us the year on earth. The earth revolves around the sun once in about 365.25 days. Revolution can be a little more complex than this. A sidereal revolution is the orbit of a body as it is observed from the distant stars. Synodic revolution… Read More

### How long does a lunar cycle last?

27.5 days is given as the (sidereal) orbital period of the moon, but this is slightly different from the moon's synodic period. A full lunar cycle takes one synodic period to complete. 29.531 days is the synodic cycle of the moon, what we call the lunar cycle. This is the length of time it takes for exactly one entire cycle of lunar phases to occur. A synodic orbit or period is the length of time… Read More

### 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… Read More

### About how long does it take the moon to rotate on its axis?

The moon takes 29.5 days to complete one synodic cycle. This cycle is what we observe from earth, and it is the cycle we would measure from, say, one full moon to the next. However, by the time a synodic cycle ends, the moon has rotated a little more than 360 degrees. This is hard to grasp and takes some time and thought. The rotation of bodies that are orbiting other bodies always presents a… Read More

### How many degrees of longitude does earth turn each hour?

15. There are 24 hours; a full rotation is 360, so 360 divided by 24 is 15. The earth spins approximately 360 degrees in twenty four hours (one day). The earth spins 15 degrees in one hour. _____________ The above is correct in a general sense, but this is a little more complex than meets the eye. The earth spins very close to what might be called 15 'synodic' degrees in one hour, if you… Read More

### How many hours does it take for the earth to turn once around its axis?

It takes 23 hours, 56 minutes and 4.1 seconds, roughly. Yes, it seems impossible that the answer is not exactly 24 hours. There is a difference between sidereal and synodic periods of rotation. The time given is for one sidereal rotation, or an exact 360 degree rotation as it would be observed from the distant stars. The synodic rotation, a little more than 360 degrees, brings us back to the same point relative to the… Read More

### 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............. Read More

### What is the revolutin around the sun for Saturn?

It takes about 29.5 Earth years for Saturn to revolve around the Sun. More, about the Sun's rotation: At the equator the solar rotation period is 24.47 days. This is called the sidereal rotation period, and should not be confused with the synodic rotation period of 26.24 days, which is the time for a fixed feature on the Sun to rotate to the same apparent position as viewed from Earth. The synodic period is longer… Read More

### How many month does it take the moon to revolve around the earth?

About 12/13 of a lunar month. The sidereal lunar orbital period is slightly less than a lunar month (as determined by the phases of the moon) which in turn is slightly less than a Gregorian or Julian calendar month. Every year the number of times the moon completes a sidereal orbit of the earth (an orbit compared with the background of fixed stars) is one more than the number of lunar months, which is between… Read More

### 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. Read More

### What is the rotation and rotation period of the moon?

The moon's period of rotation and period of revolution around the earth are the same. The sidereal period (the true period bringing the moon through 360 degrees of rotation) is 27.32 earth days, roughly. This is different from the moon's synodic period, which is the length of time for the moon to complete each cycle of moon phases. The moon has to move a little more than 360 degrees through its orbit around earth in… Read More

### How many months pregnant am I?

Well I would guess that you are no more than 9 months pregnant! Read More

### How many months have 28days?

Answer: one Answer: All months have 28 days. Some even have more than that. Read More

### How many months pregnant are you if you are 7 weeks?

One week more before two months AOG. Read More

### What is the difference between sidereal and synoptic months?

The moon orbits eastward from the earth in 27.32 days. this is called the sidereal period because it refers to a fixed stars. Although the moon orbits earth in 27.32 days, it takes slightly longer to go through its phases. While the moon moves around the sky in 27.32 days, the sun moves eastward about 1 degree per day. In 27.32 days, the moon returns to the same place in the sky where it was… Read More

### How many months can you stay to US if you have your tourist visa?

Fron one to 6 months,from what I know. No more than that. Read More

### How many months are in ten weeks?

i am guessing that it should be 2 months and 2 days or a bit less or more Read More

### How many months is 85 days?

Depends on which months! Feb. has less days, leap years more... The answer is about 3! Read More

### What is the rotation of Ceres?

The sidereal rotation period of Ceres is about 9.075 hours. See related link for more information Read More

### What planets day is more than half as long as its year?

The "Solar day" on Venus. Or, the "Sidereal day" on Mercury. Read More

### How many months can elephants live?

They can live up to eight hundred and forty months and maybe more if the stay healthy! Read More

### How often does the moon revolve around earth relative to the stars?

The sidereal revolution time of the Moon is 27.32 days. This is the length of time it revolves relative to distant stars. Of more use, however, is the synodic period, which is 29.53 days, the average length of time it takes to repeat a phase. The reason for the difference between these two times is that the Moon is revolving around the Earth, at the same time the Earth is rotating about its axis, at… Read More

### How many months are in 105 days?

105 days is more than 3 months, about 3.45 months (about 3 months and 2 weeks). Months are not a fixed number of days, the average is 30.4 days per month. Read More

### If there are 7 months that have 31days and 11month with 30days how many months have 28days in them?

The commonly give answer is something like this: "All months have 28 days, some even have more." Read More

### How many Thursdays in 4 months?

It depends on the year and months. However, the answer cannot be less than 17 or more than 18. Read More

### How many months have 28days in the year?

All of the months in the year have 28 days in them. Moreover ... All of the months except February have even more than that every year, and even February has more than that every 4th year. Read More

### How long does it take the moon to orbit the Earth once?

The moon's synodic period of orbit around the earth is 29.53 days, roughly. This is the length of time it takes for the moon to reach the same position relative to the sun as the starting position. So the synodic period reflects the cycle of moon phases. Each full cycle of moon phases takes about 29.53 days to complete. The synodic period covers more than 360 degrees of orbit, because the earth is orbiting the… Read More

### 18 weeks equals to how many months?

A little more than four months. (It depends on the date the week count starts, since months have different amount of days.) Read More

### How many more months have 31 days than have 30?

There are 7 months with 31 days There are 4 months with 30 days There is 1 month with 28 days The answer is 3 Read More

### Which planet's day is more than half as long as its year?

Mercury has a "sidereal day" which is like that. Venus has a "solar day" which is like that. Read More

### How many Earth hours is in one Mars day?

The simple answer is "just over 24 hours". More details: A day on Mars is 24 hours, 39 minutes and 35 seconds That's the "solar day". The rotation period or "sidereal day" is a couple of minutes less. For comparison, on Earth the solar day is 24 hours and the sidereal day is about 23 hours and 56 minutes. Read More

### The time required for a planet to complete one turn on its axis is called a what?

It can be called a couple of different things because, believe it or not, "one turn on its axis" can mean two different things. Without getting into a long explanation, here are the basics. You can do more study if you want more details. If you are considering the rotation (turning on the axis) of earth, and you are talking about the earth rotating from one solar noon to the next solar noon, (the moment… Read More

### 23 weeks is how many months?

About 5.2 months 23 weeks (161 days) is equal to about one week more than 5 average months of 30.4 days, approximately 5 months and 6 days. Read More

### How many months does it take to get to Saturn?

With current technology, it is more like several years. Read More

### How many times do you get white mark on my pants?

for about 6 months or more before your period Read More

### How many hours is 5?

Please be more specific as to five 'what' - days, months, years... Read More

### What causes lunar phases?

The phase of the moon (new, half, full, etc) is a function of how much of its lit surface we can see from the earth. Half the moon is always sunlit, half is dark, but as the moon orbits the earth, more or less of the lit face is pointed towards us here on earth. The moon's synodic period around the earth is about 29.5 days, which coincides with the length of a month. Once… Read More

### How do the moon phases happen?

The phase of the moon (new, half, full, etc) is a function of how much of its lit surface we can see from the earth. Half the moon is always sunlit, half is dark, but as the moon orbits the earth, more or less of the lit face is pointed towards us here on earth. The moon's synodic period around the earth is about 29.5 days, which coincides with the length of a month. Once… Read More

### The Amount of time that an object takes to rotate ONCE is called its What?

Assuming that this is a question about astronomy, the answer would be "day" or, more exactly, "sidereal day". Read More

### How many months' validity are essential on a British passport if you want to travel to India?

The passport should be valid for more than six months. Read More