what is the diameter of Halley's comet how bright is Halley's comet and some more junk
He was a fellow Astromaut!
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Halley's comet was named after Edmond Halley, the English astronomer who first discovered that it was a periodic object in 1705. The comet had been seen and recorded as early as 240 B.C., but no one realized it was the same comet in the sky before Halley.
Edmund Halley was the fellow who first realized that the historical accounts of comets seemed to show that they were not solitary events; that they came back into view on a regular schedule. Examining the records, Halley calculated the probable orbit of the comet and concluded that the comet of 1682 was probably the same comet that had been seen in 1607 and before that in 1531. Halley predicted that the comet would once again be visible in 1758. When it was observed in December, 1758, it was dubbed "Halley's Comet", a title it retains.To astronomers, Halley's Comet is called "1P/Halley"; the 1P indicates that in the catalog of comets, this is the first entry and that it is "Periodic".
The new comet, Hale-Bop, was very bright when it came past about 6 years ago.
the mom: Gracey Halley the dad was also Edmond halley. the mom: Gracey Halley the dad was also Edmond halley.
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The last sighting of Halley's Comet was in 1986. It is expected to return in 2061.
Halley's comet was named after Edmond Halley, the English astronomer who first discovered that it was a periodic object in 1705. The comet had been seen and recorded as early as 240 B.C., but no one realized it was the same comet in the sky before Halley.
It is believed that Mark Twain (aka Samuel Clemens) was born the same month as the passing of Halley's comet in November 1835. Halley's Comet passed on November 10th 1835 and Twain was born November 30th 1835. Twain vowed he would "go out"with the passing of the comet, as it passes in 75 year cycles. Halley's comet passed again April 20th 1910, Twain passed April 21st 1910.
Edmund Halley was the fellow who first realized that the historical accounts of comets seemed to show that they were not solitary events; that they came back into view on a regular schedule. Examining the records, Halley calculated the probable orbit of the comet and concluded that the comet of 1682 was probably the same comet that had been seen in 1607 and before that in 1531. Halley predicted that the comet would once again be visible in 1758. When it was observed in December, 1758, it was dubbed "Halley's Comet", a title it retains.To astronomers, Halley's Comet is called "1P/Halley"; the 1P indicates that in the catalog of comets, this is the first entry and that it is "Periodic".
The new comet, Hale-Bop, was very bright when it came past about 6 years ago.
Halley's comet is important because it has 5 most important facts about it.
Halley's comet is important because it has 5 most important facts about it.
Every 76 years or so. The precise orbit is difficult to calculate precisely because the irregular thrust given off by escaping gasses, and by the variance of Halley's passes by the outer planets.
The Moon is bigger. It has a diameter of 2,159 miles (3,476 kilometers), which is about four times smaller than the diameter of Earth. Halley's Comet nucleus (the solid bit) is estimated to be approximately 5 miles by 9 miles.
Edmund Halley
the mom: Gracey Halley the dad was also Edmond halley. the mom: Gracey Halley the dad was also Edmond halley.