英语词汇“minute of arc”造句的方法、技巧、例句及翻译-英语例句辞典

Now, there are 60 minutes of arc in an angular degree, and 90 degrees, a right angle, from the horizon to the zenith. Cosmos 1980-01-01T00:00:00Z

After three years of calculation, he believed he had found the correct values for a Martian circular orbit, which matched ten of Tycho’s observations within two minutes of arc. Cosmos 1980-01-01T00:00:00Z

So a few minutes of arc is a very small quantity to measure—especially without a telescope. Cosmos 1980-01-01T00:00:00Z

BeppoSAX included a new type of gamma-ray telescope capable of identifying the position of a source much more accurately than previous instruments, to within a few minutes of arc on the sky. Astronomy 2016-10-13T00:00:00Z

He says, “They mostly lie in two bands,” and are especially numerous where the two bands meet, a region of 12 minutes of arc square containing no less than 148 of them. Astronomical Curiosities Facts and Fallacies 2012-03-27T02:00:18Z

Naval Observatory routinely uses 34 minutes of arc for the angle of refraction and 16 minutes of arc for the semidiameter of the sun's disc. Spring Arrives with Equinox Tuesday, Earliest in More Than a Century 2012-03-19T19:45:00.230Z

A small star has, however, been observed at Greenwich within one minute of arc of the place assigned to the temporary star by Picard's observations. Scientific American Supplement, No. 648, June 2, 1888. 2011-12-26T03:00:15.410Z

The tables employ three variables—the latitude of the locality measured to the nearest degree, the LHA as determined above, and the declination of the moon measured to the nearest 30 minutes of arc. A Quantitative Study of the Nocturnal Migration of Birds. Vol.3 No.2 2011-11-02T02:00:14.587Z

After all, a box a few minutes of arc on a side could still contain many stars or other celestial objects. Astronomy 2016-10-13T00:00:00Z

The apparent diameter of the object was about one minute of arc, and the duration of the transit 3 or 4 seconds, the direction of motion being from east to west. Astronomical Curiosities Facts and Fallacies 2012-03-27T02:00:18Z

The distance apart of these stars is about seven minutes of arc, while the distance between the two Thetas is about five and a half minutes of arc. Astronomy with an Opera-glass A Popular Introduction to the Study of the Starry Heavens with the Simplest of Optical Instruments 2011-07-17T02:00:30.177Z

This would make the moon appear about one-sixtieth, or one-half minute of arc smaller at the horizon than at the zenith. Visual Illusions Their Causes, Characteristics and Applications 2011-06-02T02:00:25.247Z

It is a question of seconds of arc in the one case and of minutes of arc in the other. Are the Planets Inhabited? 2011-04-24T02:00:07.733Z

It had two stout brass right ascension circles divided to 10 seconds, and declination circles divided to 5 minutes of arc. The Life of Roger Langdon Told by himself. With additions by his daughter Ellen. [With a preface by H. Clifton Lambert.] 2010-12-21T22:55:56.210Z

There are two quadruple sets three and a half minutes of arc apart. Pleasures of the telescope An Illustrated Guide for Amateur Astronomers and a Popular Description of the Chief Wonders of the Heavens for General Readers

They are about six minutes of arc apart, and are of the third and the fourth magnitude respectively. Astronomy with an Opera-glass A Popular Introduction to the Study of the Starry Heavens with the Simplest of Optical Instruments 2011-07-17T02:00:30.177Z

In fact they may be depended on almost to minutes of arc, i.e. to sixtieths of a degree. Pioneers of Science

This is an angle, roughly, of thirty-two minutes of arc; that is to say, slightly more than half a degree. Astronomy of To-day A Popular Introduction in Non-Technical Language

The height of these extraordinary objects was estimated by Arago at two minutes of arc, representing, at the sun's distance, an actual elevation of 54,000 miles. A Popular History of Astronomy During the Nineteenth Century Fourth Edition

They are about two and a quarter minutes of arc apart, and exceptionally sharp-sighted persons are able to see them divided with the naked eye. Pleasures of the telescope An Illustrated Guide for Amateur Astronomers and a Popular Description of the Chief Wonders of the Heavens for General Readers

It changes its place nearly seven minutes of arc in a century. Astronomy with an Opera-glass A Popular Introduction to the Study of the Starry Heavens with the Simplest of Optical Instruments 2011-07-17T02:00:30.177Z

He thought he had found the truth; but no, before long the position of the planet, as calculated, and as recorded by Tycho, differed by eight minutes of arc, or about one-eighth of a degree. Pioneers of Science

Even when Venus is nearest to the earth the diameter of the planet subtends an angle not much more than one minute of arc. The Story of the Heavens

By the introduction of the astrolabe, Ptolemy, and the later Alexandrian astronomers could determine the places of the heavenly bodies within about ten minutes of arc. Human Traits and their Social Significance

Allowing an uncertainty of a few minutes of arc, a date fifty years on either side of these extremes would satisfy the requirements of the case. The American Journal of Archaeology, 1893-1

This difference actually meant that the British and Norwegian observers differed by one scale division on the theodolite, which was graduated to half a minute of arc. South with Scott

This has an aperture of five inches, a power of thirty diameters, and a field of view of seventy-eight minutes of arc. Scientific American Supplement, No. 530, February 27, 1886

When Kepler arrived he was told that their longitudes agreed within a couple of minutes of arc, but that something was wrong with the latitudes. Kepler

A minute of arc at the distance of 250 feet is seven-eighths of an inch; and this is the most accurate way, for the vernier will not mark so small a space accurately. Scientific American Supplement, No. 344, August 5, 1882

Helmholtz has defined the minimum angle measurable with the naked eye as being one minute of arc. History of Astronomy

The human eye can't resolve any object that subtends less than three minutes of arc. The Flying Saucers are Real

Adjacent to these "finder" diagrams are the settings—to the nearest minute of arc in declination, and of time in right ascension—as read from the large finding-circles, divided in black and white. Scientific American Supplement, No. 530, February 27, 1886

A marked improvement in residuals was the result of this step, proving, so far, the correctness of Ptolemy’s principle, but there still remained discordances amounting to eight minutes of arc. Kepler

The true meridian can thus be found within one minute of arc: Directions.—Nail a slat to the north side of an upper window—the higher the better. Scientific American Supplement, No. 344, August 5, 1882

That is to say, reduced to modern terminology, he places the limit of the sun's apparent size between thirty-three minutes and twenty-seven minutes of arc. A History of Science — Volume 1

单词	minute of arc
例句	minute of arc Now, there are 60 minutes of arc in an angular degree, and 90 degrees, a right angle, from the horizon to the zenith. Cosmos 1980-01-01T00:00:00Z After three years of calculation, he believed he had found the correct values for a Martian circular orbit, which matched ten of Tycho’s observations within two minutes of arc. Cosmos 1980-01-01T00:00:00Z So a few minutes of arc is a very small quantity to measure—especially without a telescope. Cosmos 1980-01-01T00:00:00Z BeppoSAX included a new type of gamma-ray telescope capable of identifying the position of a source much more accurately than previous instruments, to within a few minutes of arc on the sky. Astronomy 2016-10-13T00:00:00Z He says, “They mostly lie in two bands,” and are especially numerous where the two bands meet, a region of 12 minutes of arc square containing no less than 148 of them. Astronomical Curiosities Facts and Fallacies 2012-03-27T02:00:18Z Naval Observatory routinely uses 34 minutes of arc for the angle of refraction and 16 minutes of arc for the semidiameter of the sun's disc. Spring Arrives with Equinox Tuesday, Earliest in More Than a Century 2012-03-19T19:45:00.230Z A small star has, however, been observed at Greenwich within one minute of arc of the place assigned to the temporary star by Picard's observations. Scientific American Supplement, No. 648, June 2, 1888. 2011-12-26T03:00:15.410Z The tables employ three variables—the latitude of the locality measured to the nearest degree, the LHA as determined above, and the declination of the moon measured to the nearest 30 minutes of arc. A Quantitative Study of the Nocturnal Migration of Birds. Vol.3 No.2 2011-11-02T02:00:14.587Z After all, a box a few minutes of arc on a side could still contain many stars or other celestial objects. Astronomy 2016-10-13T00:00:00Z The apparent diameter of the object was about one minute of arc, and the duration of the transit 3 or 4 seconds, the direction of motion being from east to west. Astronomical Curiosities Facts and Fallacies 2012-03-27T02:00:18Z The distance apart of these stars is about seven minutes of arc, while the distance between the two Thetas is about five and a half minutes of arc. Astronomy with an Opera-glass A Popular Introduction to the Study of the Starry Heavens with the Simplest of Optical Instruments 2011-07-17T02:00:30.177Z This would make the moon appear about one-sixtieth, or one-half minute of arc smaller at the horizon than at the zenith. Visual Illusions Their Causes, Characteristics and Applications 2011-06-02T02:00:25.247Z It is a question of seconds of arc in the one case and of minutes of arc in the other. Are the Planets Inhabited? 2011-04-24T02:00:07.733Z It had two stout brass right ascension circles divided to 10 seconds, and declination circles divided to 5 minutes of arc. The Life of Roger Langdon Told by himself. With additions by his daughter Ellen. [With a preface by H. Clifton Lambert.] 2010-12-21T22:55:56.210Z There are two quadruple sets three and a half minutes of arc apart. Pleasures of the telescope An Illustrated Guide for Amateur Astronomers and a Popular Description of the Chief Wonders of the Heavens for General Readers They are about six minutes of arc apart, and are of the third and the fourth magnitude respectively. Astronomy with an Opera-glass A Popular Introduction to the Study of the Starry Heavens with the Simplest of Optical Instruments 2011-07-17T02:00:30.177Z In fact they may be depended on almost to minutes of arc, i.e. to sixtieths of a degree. Pioneers of Science This is an angle, roughly, of thirty-two minutes of arc; that is to say, slightly more than half a degree. Astronomy of To-day A Popular Introduction in Non-Technical Language The height of these extraordinary objects was estimated by Arago at two minutes of arc, representing, at the sun's distance, an actual elevation of 54,000 miles. A Popular History of Astronomy During the Nineteenth Century Fourth Edition They are about two and a quarter minutes of arc apart, and exceptionally sharp-sighted persons are able to see them divided with the naked eye. Pleasures of the telescope An Illustrated Guide for Amateur Astronomers and a Popular Description of the Chief Wonders of the Heavens for General Readers It changes its place nearly seven minutes of arc in a century. Astronomy with an Opera-glass A Popular Introduction to the Study of the Starry Heavens with the Simplest of Optical Instruments 2011-07-17T02:00:30.177Z He thought he had found the truth; but no, before long the position of the planet, as calculated, and as recorded by Tycho, differed by eight minutes of arc, or about one-eighth of a degree. Pioneers of Science Even when Venus is nearest to the earth the diameter of the planet subtends an angle not much more than one minute of arc. The Story of the Heavens By the introduction of the astrolabe, Ptolemy, and the later Alexandrian astronomers could determine the places of the heavenly bodies within about ten minutes of arc. Human Traits and their Social Significance Allowing an uncertainty of a few minutes of arc, a date fifty years on either side of these extremes would satisfy the requirements of the case. The American Journal of Archaeology, 1893-1 This difference actually meant that the British and Norwegian observers differed by one scale division on the theodolite, which was graduated to half a minute of arc. South with Scott This has an aperture of five inches, a power of thirty diameters, and a field of view of seventy-eight minutes of arc. Scientific American Supplement, No. 530, February 27, 1886 When Kepler arrived he was told that their longitudes agreed within a couple of minutes of arc, but that something was wrong with the latitudes. Kepler A minute of arc at the distance of 250 feet is seven-eighths of an inch; and this is the most accurate way, for the vernier will not mark so small a space accurately. Scientific American Supplement, No. 344, August 5, 1882 Helmholtz has defined the minimum angle measurable with the naked eye as being one minute of arc. History of Astronomy The human eye can't resolve any object that subtends less than three minutes of arc. The Flying Saucers are Real Adjacent to these "finder" diagrams are the settings—to the nearest minute of arc in declination, and of time in right ascension—as read from the large finding-circles, divided in black and white. Scientific American Supplement, No. 530, February 27, 1886 A marked improvement in residuals was the result of this step, proving, so far, the correctness of Ptolemy’s principle, but there still remained discordances amounting to eight minutes of arc. Kepler The true meridian can thus be found within one minute of arc: Directions.—Nail a slat to the north side of an upper window—the higher the better. Scientific American Supplement, No. 344, August 5, 1882 That is to say, reduced to modern terminology, he places the limit of the sun's apparent size between thirty-three minutes and twenty-seven minutes of arc. A History of Science — Volume 1
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