- EAN13
- 9782384691548
- Éditeur
- Human and Literature Publishing
- Date de publication
- 14/02/2023
- Langue
- anglais
- Fiches UNIMARC
- S'identifier
The Advance of Astronomy in the Warfare of Science
Andrew D. White, Robert S. Ball
Human and Literature Publishing
Livre numérique
-
Aide EAN13 : 9782384691548
- Fichier EPUB, libre d'utilisation
- Fichier Mobipocket, libre d'utilisation
- Lecture en ligne, lecture en ligne
3.49
One of the most remarkable chapters in the astronomy of the past century was
commenced on the very first night with which that century began. It was,
indeed, on the 1st of January, 1801, that the discovery of a new planet was
announced. The five great orbs—Jupiter, Saturn, Mercury, Mars, and Venus—had
been known from the earliest times of which we have records, and the planet
Uranus had been discovered nearly twenty years before the previous century
closed. The solar system was thus thought to consist of these six planets and,
of course, the earth. On the memorable night to which I have referred, Piazzi,
the astronomer, made a remarkable advance. He discovered yet another
planet—the seventh, or eighth, if the earth be included. The new body was a
small object in comparison with those which were previously known. It was
invisible to the unaided eye, and seemed no more than a starlike point even
when viewed through a telescope. It revolved around the sun in the wide region
between the orbits of Mars and Jupiter. This discovery was speedily followed
by others of the same kind, and, as the century has advanced to its close, the
numbers of these planets—asteroids, as they are generally called—has been
gradually increasing, so much so that now, of these little bodies known to
astronomers, the number amounts to about four hundred and fifty.
commenced on the very first night with which that century began. It was,
indeed, on the 1st of January, 1801, that the discovery of a new planet was
announced. The five great orbs—Jupiter, Saturn, Mercury, Mars, and Venus—had
been known from the earliest times of which we have records, and the planet
Uranus had been discovered nearly twenty years before the previous century
closed. The solar system was thus thought to consist of these six planets and,
of course, the earth. On the memorable night to which I have referred, Piazzi,
the astronomer, made a remarkable advance. He discovered yet another
planet—the seventh, or eighth, if the earth be included. The new body was a
small object in comparison with those which were previously known. It was
invisible to the unaided eye, and seemed no more than a starlike point even
when viewed through a telescope. It revolved around the sun in the wide region
between the orbits of Mars and Jupiter. This discovery was speedily followed
by others of the same kind, and, as the century has advanced to its close, the
numbers of these planets—asteroids, as they are generally called—has been
gradually increasing, so much so that now, of these little bodies known to
astronomers, the number amounts to about four hundred and fifty.
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