Astronomical Curiosities: Facts and FallaciesGore, J. Ellard (John Ellard)
Science
Astronomical Curiosities: Facts and Fallacies
Gore, J. Ellard (John Ellard)
Astronomy -- Miscellanea; Solar system -- Miscellanea
In the Sanscrit epic poem, "The Ramaya," it is stated that at the birth of
Rama, the moon was in Cancer, the sun in Aries, Mercury in Taurus, Venus
in Pisces, Mars in Capricornus, Jupiter in Cancer, and Saturn in Libra.
From these data, Mr. Walter R. Old has computed that Rama was born on
February 10, 1761 B.C.[493]
A close conjunction of Mars and Saturn was observed by Denning on
September 29, 1889, the bright star Regulus (α Leonis) being at the time
only 47' distant from the planets.[494]
An occultation of the Pleiades by the moon was observed by Timocharis at
Alexandria on January 29, 282 B.C. Calculations by Schjellerup show that
Alcyone (η Tauri) was occulted; but the exact time of the day recorded by
Timocharis differs very considerably from that computed by
Schjellerup.[495] Another occultation of the Pleiades is recorded by
Agrippa in the reign of Domitian. According to Schjellerup the phenomenon
occurred on November 29, A.D. 92.
"Kepler states that on the 9th of January, 1591, Mæstlin and himself
witnessed an occultation of Jupiter by Mars. The red colour of the latter
on that occasion plainly indicated that it was the inferior planet."[496]
That is, that Mars was nearer to the sun than Jupiter. But as the
telescope had not then been invented, this may have been merely a near
approach of the two planets.
According to Kepler, Mæstlin saw an occultation of Mars by Venus on
October 3, 1590. But this may also have been merely a near approach.[496]
A curious paradox is that one can discover an object without seeing it,
and see an object without discovering it! The planet Neptune was
discovered by Adams and Leverrier by calculation before it was seen in the
telescope by Galle; and it was actually seen by Lalande on May 8 and 10,
1795, but he took it for a _star_ and thus missed the discovery. In fact,
he _saw_ the planet, but did not _discover_ it. It actually appears as a
star of the 8th magnitude in Harding's Atlas (1822). The great "new star"
of February, 1901, known as Nova Persei, was probably seen by some people
before its discovery was announced; and it was actually noticed by a
well-known American astronomer, who thought it was some bright star with
which he was not familiar! But this did not amount to a discovery. Any one
absolutely ignorant of astronomy might have made the same observation. An
object must be _identified_ as a _new_ object before a discovery can be
claimed. Some years ago a well-known Irish naturalist discovered a spider
new to science, and after its discovery he found that it was common in
nearly every house in Dublin! But this fact did not detract in the least
from the merit of its scientific discovery.
Public-domain text, read in full here on John Shaqi.
Reviews
Reviews
No reviews yet
Be the first to share your thoughts on this work.
Elsewhere in the archive
Join the Discussion
Join the discussion
Sign in to leave a comment or review.
Sign InorCreate an account