SOLAR SYSTEM

UNIVERSE

METEORITES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Halley’s comet periodicity was first determined in ____ by an English astonomer named ____
A
1805, Edmond Halley
B
2005, Halley Edmond
C
1705, Edmond Halley
D
1805, Halley Edmond
Explanation: 

Detailed explanation-1: -Edmond Halley was an English geophysicist, astronomer, physicist, mathematician, and meteorologist. In September 1682 he calculated the periodicity of Halley’s comet by using Newton’s laws of motion. He gave the synopsis for Halley’s comet in his book in 1705. After that the comet was named after him in 1758.

Detailed explanation-2: -It was last here in 1986, and it is projected to return in 2061. The comet, officially called 1P/Halley, is named after English astronomer Edmond Halley, who examined reports of a comet approaching Earth in 1531, 1607 and 1682.

Detailed explanation-3: -The History of Halley’s Comet Until the time of English astronomer Edmond Halley (1656-1742), comets were believed to make only one pass through the solar system. But in 1705, Halley used Isaac Newton’s theories of gravitation and planetary motions to compute the orbits of several comets.

Detailed explanation-4: -Edmond Halley, Edmond also spelled Edmund, (born Nov. 8, 1656, Haggerston, Shoreditch, near London-died Jan. 14, 1742, Greenwich, near London), English astronomer and mathematician who was the first to calculate the orbit of a comet later named after him.

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