It has never happened, and never will. The center of the galaxy does not lie in the plane of the ecliptic, so all the planets can never line up pointing that way.
"One calculation of alignments within around thirty degrees (about as close as they can get) shows that the last such alignment was in 561 BC, and the next will be in 2854. All nine planets are somewhat aligned every 500 years, and are grouped within 30 degrees every 1 to 3 alignments."http://curious.astro.cornell.edu/question.php?number=203
There is always a problem with using the term Planetary alignment. How close do you want the planets to be in alignment. Do you include the ecliptic? If you want all the planets to be aligned in a straight line with only a 1 mile difference, then you'll have a wait a long long while - probably infinity. Even then, you have to take into account the ecliptic as space is 3 dimensional, so the planets will never align in a perfect straight line as seen from Earth. The last "close" alignment was in May 2000 and nothing happened then.
Aristarchus was the first do to so. Copernicus discovered the math was easier if he assumed the sun was the center, but I'm not sure how hard he pushed the theory. Galileo pretty much proved the sun was the center of the solar system. Of course, he thought the sun was the center of the universe. The realization it was not pretty much came just last century.
The last time the planets aligned in a straight line while revolving around the sun was on March 20, 1345. This phenomenon, known as a planetary alignment, occurs when several planets appear in a line relative to the sun from the perspective of Earth.
Yes, recent research has found that a large percentage of stars have planetary systems. It is now believed that planets are a common feature in our galaxy, with some stars possibly hosting multiple planets. The discovery of thousands of exoplanets in the last few decades has increased our understanding of the prevalence of planets in the universe.
The last time all of the planets aligned in a straight line was 561 BC. This phenomenon is known as a grand conjunction, where all the visible planets appear to align along the zodiac during a short period.
Nicolaus Copernicus (always referred to by just his last name) created the "Heliocentric Theory" which says that all of the planets revolve around the sun, in 1543. This challenged the belief that the earth was the center of the universe and was not accepted until about 1700.
"One calculation of alignments within around thirty degrees (about as close as they can get) shows that the last such alignment was in 561 BC, and the next will be in 2854. All nine planets are somewhat aligned every 500 years, and are grouped within 30 degrees every 1 to 3 alignments."http://curious.astro.cornell.edu/question.php?number=203
The last time that all of the planets aligned in a straight line was in 561 BC. However, it's important to note that a perfect alignment of all the planets is a rare event due to their different orbital planes and speeds.
There is always a problem with using the term Planetary alignment. How close do you want the planets to be in alignment. Do you include the ecliptic? If you want all the planets to be aligned in a straight line with only a 1 mile difference, then you'll have a wait a long long while - probably infinity. Even then, you have to take into account the ecliptic as space is 3 dimensional, so the planets will never align in a perfect straight line as seen from Earth. The last "close" alignment was in May 2000 and nothing happened then.
Aristarchus was the first do to so. Copernicus discovered the math was easier if he assumed the sun was the center, but I'm not sure how hard he pushed the theory. Galileo pretty much proved the sun was the center of the solar system. Of course, he thought the sun was the center of the universe. The realization it was not pretty much came just last century.
Yes, it is theoretically possible for all the planets in our solar system to align, but it is extremely rare due to the different orbits and speeds at which they move. The last time all the planets aligned in a straight line was in 561 BC, and the next alignment of all the planets is not expected to occur for several centuries.
The Last Book in the Universe was created in 2000.
The planets do not align frequently. A perfect alignment of all planets in our solar system is very rare due to their different orbits and speeds of rotation. The last time all the planets aligned in a straight line was in 561 BC, and such a perfect alignment won't happen again for millions of years.
The last time the planets aligned in a straight line while revolving around the sun was on March 20, 1345. This phenomenon, known as a planetary alignment, occurs when several planets appear in a line relative to the sun from the perspective of Earth.
Last Life in the Universe was created on 2003-08-08.
Outer planets