Name: 天王星の発見（天文学 (The Discovery of Uranus (Astronomy))
Uploaded: 2021-01-14T08:51:16.000Z
Duration: 3 min 57 s
Description: VoiceTubeの動画で発音を聞きながら英語表現を覚えよう！学べる英語：

基礎受動態

Six planets were known to the ancients: Mercury, Venus, Earth, Mars, Jupiter, and Saturn. It

wasn’t until 1781, during the Age of Enlightenment, the age of the “gentleman scientist,”

Friedrich Wilhelm Herschel was a German musician who fled French-occupied Hanover during the

Seven Years’ War. He made a new life in England, settling in Bath where he was appointed

a church organist, a respected position. He changed his name to William,

In 1773, at the age of 35, Herschel took up the gentlemanly pursuit of science. He acquired

a copy of James Ferguson’s book “Astronomy,” and Robert Smith’s “Opticks.” Eager

to apply what he had learned from these texts, Herschel began constructing special reflecting

mirrors and soon had made one of the most powerful telescopes of its day. With it, he

was able to view the heavens with great clarity. Herschel, with the assistance of his sister

Caroline, undertook a survey of the night sky, paying special attention to double stars.

On March 13, 1781, Herschel took a closer look at what was assumed to be a faint star.

It had been previously catalogued by other astronomers as 34 Tauri, the 34th star of

Taurus, the Bull. Through his powerful telescope, however, Herschel observed it with fresh eyes.

In his notes he wrote “In the quartile near Zeta Tauri ... either [a] nebulous star or

perhaps a comet.” Four days later, on March 17, 1781, he wrote “I looked for the Comet

or Nebulous Star and found that it is a Comet, for it has changed its place. ”

Herschel had discovered a new heavenly body that moved. It turned out not to be a comet,

but a PLANET, the first to be discovered since prehistoric times. It was twice as far away

from the sun as Saturn. Overnight, Herschel had doubled the size of the known solar system.

Herschel wanted to name his find “Georgium Sidus”, Latin for “Georgian star” after

King George III of England. Cooler heads prevailed, and the name Uranus was settled upon, which

followed the tradition of naming planets after Greek and Roman Gods.

As news of his discovery spread, Herschel became famous overnight, and he was appointed

by George III as the Royal Astronomer. He was elected a Fellow of the Royal Society,

and was awarded grants to continue his work and build more telescopes.

Herschel went on to discover two of the moons orbiting Uranus. His son John named them Oberon

and Titania after the King and Queen of the fairies in William Shakespeare’s A Midsummer

Night’s Dream. Most of the moons of Uranus discovered later were also named after Shakespearean

Herschel was knighted in 1816 for his invaluable contributions to science. His discovery of

Uranus shattered the notion that the ancients had discovered everything in the solar system.

Herschel’s work ushered in a new era of astronomy - one in which momentous discoveries

The universe is a pretty big place, and so is that subscribe button.

I’m not going to tell you to click it, because I’m certain you’ll do the right thing……