What did seven century astronomer Edmund halley notice about the comet later named after him?

Answer 1

Halley's Comet is a short-period comet; we can predict that it will return to the inner solar system within our lifetimes, and several times in recent history. Most other comets are either long-period and will not return for centuries, or will never again be visible.

Sometimes it is very bright; sometimes it is a "fizzle". It is this element of reassuringly-predictable repeating mystery that makes it noteworthy.

Answer 2

The comet’s orbital period was first discovered by an English astronomer by the name of Edmund Halley in 1705 which is why now the comet is crowned this famous name. He examined reports of a comet approaching Earth in 1531, 1607 and 1682. He concluded that these three comets were actually the same comet returning to the solar system in an orbit, and predicted the comet would come again in 1758 and of course, when the time came his theory was vindicated despite him not living to see the event for himself and the comet was named after him.Taken from the CometWatch website

Answer 3

Most comets have an orbit around the Sun that takes several thousand years. Halley's comet orbits much closer, and can thus be seen far more often - about once every 75 years. This makes it, and comets in general, much easier to study.

Answer 4

Each time a comet appeared in the sky, people thought it was appearances of

different comets. Halley theorized that at least some comets were members of

the solar system, orbited the sun, and could reappear several times. He found

evidence throughout recorded history of the appearance of a great comet at

intervals or multiples of 70 to 75 years, calculated the orbit of a comet that

appeared during his own lifetime, theorized that they were all the same comet,

and predicted the time of its next reappearance. Halley died before that date,

but the comet did appear at time he had predicted, and was then named for him.

Answer 5

Because it is a comet that was predicted by the astronomy Halley.

Although Halley's Comet was named after Edmond Halley, an English astronomer in his honor from predicting the next sighting of the comet, there can be a big debate on who and where exactly discovered the comet.

First sightings of the comet go all the way back even before Edmond Halley was born. First sightings of this comet were seen by the Babylonians, Chinese, and even medieval Europeans. However, they didn't believe that they were seeing the same exact comet. It was Edmond Halley who discovered the recurring appearance of this comet.

Answer 6

Probably, during the 1682 apparition - but it wasn't called "Halley's Comet" back then.

It wasn't until 1705 that his calculations led him to believe that the comet of

1682 was the same comet as had appeared in 1531 and 1607, and that the

comet would become visible again in 1758. When that prediction came true

(on December 25, 1758) the name "Halley's Comet" was applied in his honor.

Halley himself died almost 17 years earlier, on January 14, 1742, at the age of 85.

Answer 7

Edmund Halley did not "discover" the comet that bears his name. Hally was the first to realize that this comet was probably the same comet that had been observed ad documented several times throughout history, and predicted based on his observations that the comet would become visible again.

Halley didn't live to see the comet return on schedule, but it was named in his honor.

Answer 8

Halley did more than "notice" the behavior of the comet. He was a brilliant mathematician

who was able to take a collection of historical records and descriptions of comet appearances,

and derive mathematically the indication that a particular series of comet visits that occurred

every 76 years, could be explained on the basis of a single returning body.

The story isn't too exciting until you consider that no comet had ever been predicted.

Aristotle and others believed that comets were the result of disturbances in earth's

atmosphere. Newton developed planetary orbits from his theory of universal gravitation,

but he wasn't able to reach the point where he could show any connection with comets.

Based on Halley's own work with Newton's gravitation, and his his mathematical analysis

of past comets, he predicted the appearance of a large, bright comet in 1758.

Halley died 14 years before it arrived and he could see it. But when it did arrive, to

vindicate his work and radically change all understanding of comets, it was named

after him. And today, we can calmly tell you to look for it when it sails by here

again in 2061.

And by the way ... Halley was not of the "seven century", or even the seventeenth.

He was born in 1682, and did his most historic work in the 1700s, which was the

eighteenth Century.

Answer 9

because he was the one who said it was the same comet people were seeing, but it was coming back to earth every 76 years. he said it would come back in a certain year, and it did. He didn't live to see it, but they named the comet in his honor.

Answer 10

He discovered it and predicted it would come every 76 years.