| 单词 | chromosphere |
| 例句 | As the period of totality draws to an end, the area of first contact will brighten and, for a short moment, the neon-scarlet chromosphere is visible in its breathtaking beauty. Why I chase eclipses 2017-08-19T04:00:00Z The spacecraft is equipped with seven payloads to study the sun’s corona, chromosphere, photosphere and solar wind, the Indian Space Research Organization said. India launches spacecraft to study the sun after successful landing near the moon’s south pole 2023-09-01T04:00:00Z There are dramatic changes in the chromosphere and corona as well. Astronomy 2016-10-13T00:00:00Z Haswell hypothesized that the resulting trail of gas from the planet absorbed the same wavelengths of light that the star's chromosphere emits, making it appear dark. Newfound "Ablating" Exoplanets Could Reveal Alien Geology 2019-12-23T05:00:00Z Mariona Badenas, 25, of Spain, walked past, heading for the observatory, where a special telescope allows her to look at the sun’s chromosphere, or second layer of atmosphere. Life on Mars gets a test run in the Utah desert 2019-06-23T04:00:00Z Presented in an inverted format and colour enhanced to create a warm sunny glow, the photograph shows the beautiful structure within the hydrogen chromosphere. The year's best astronomy photos 2018-10-28T04:00:00Z If this is true, the sun’s chromosphere may actually be complete, with no holes at the poles. Celebrating Sun-Earth Day: A Total Eclipse of the Mind 2018-03-25T04:00:00Z These are regions within the chromosphere that have higher temperature and density than their surroundings. Astronomy 2016-10-13T00:00:00Z The hot, outer layers of its atmosphere known as the chromosphere appeared to be missing. Newfound "Ablating" Exoplanets Could Reveal Alien Geology 2019-12-23T05:00:00Z In graduate school, Pasachoff studied solar physics, using an observatory in Sunspot, N.M., to observe a thin layer of the sun’s atmosphere known as the chromosphere. Three years of preparation, two minutes of totality. For this eclipse scientist, it's all worth it 2017-08-22T04:00:00Z While the videographers are at work, Zurbuchen will be operating a handheld spectrometer to analyze the sun’s chromosphere and corona — the wispy, outer atmosphere that is only visible during a total eclipse. NASA research plane will fly from Seattle for eclipse mission 2017-08-11T04:00:00Z The Sun photographed in Calcium-K light, depicting the star’s inner chromosphere. The Best Astronomy Pictures of the Year Are Just Incredible 2017-07-28T04:00:00Z The parts of the atmosphere are also labeled the photosphere, chromosphere, and corona. Astronomy 2016-10-13T00:00:00Z She and her colleagues scoured data from 2,700 nearby sunlike stars and found that 39 appeared to be missing their chromospheres. Newfound "Ablating" Exoplanets Could Reveal Alien Geology 2019-12-23T05:00:00Z They explore helioseismology, which allows us to peer inside the Sun; look at chromosphere and corona; and proffer pointers on safe amateur observation. Books in brief : Nature : Nature Research 2017-07-18T04:00:00Z The spicules surge thousands of miles high, passing through the chromosphere and into the sun’s corona before collapsing. Solving the Scorching Mystery of the Sun’s Erupting Plasma Jets 2017-06-23T04:00:00Z These are streams of cooler gas suspended over the chromosphere by powerful magnetic fields. The secret life of the Sun 2013-07-05T14:33:58Z In all the situations we are familiar with, temperatures fall as one moves away from the source of heat, and the chromosphere is farther from the center of the Sun than the photosphere is. Astronomy 2016-10-13T00:00:00Z It is designed to capture detailed images of light moving from the sun's surface, known as the photosphere, into the chromosphere. NASA telescope to probe long-standing solar mystery 2013-06-27T17:21:28Z From that vantage point the telescope will observe a small section of the chromosphere, a violently variable region between the corona and the surface. Why Does the Sun s Corona Get So Hot? NASA Launches Telescope to Find Out 2013-06-25T14:45:05.407Z The fields enter a reddish layer called the chromosphere where their violent nature is unleashed. Solving the Scorching Mystery of the Sun’s Erupting Plasma Jets 2017-06-23T04:00:00Z Above the visible surface of the Sun is the lower atmosphere, or 'chromosphere', where temperatures range from 6,000C to about 20,000C. The secret life of the Sun 2013-07-05T14:33:58Z Scientists study events like this in order to try to understand what heats the chromosphere and corona to high temperatures. Astronomy 2016-10-13T00:00:00Z But then in the lower atmosphere, known as the chromosphere, temperatures heat up again. NASA telescope to probe long-standing solar mystery 2013-06-27T17:21:28Z Unlike the corona’s wispy prominences or the spotted, fiery surface, the chromosphere is tricky to behold. Why Does the Sun s Corona Get So Hot? NASA Launches Telescope to Find Out 2013-06-25T14:45:05.407Z Its narrow field of view will be trained on just a small part of the chromosphere: about 1% of the Sun’s disk. NASA sets sights on the Sun 2013-06-19T17:20:23.097Z This allows Poole to highlight the chromosphere, the Sun’s lower atmosphere. Amazing Video of Solar Eclipse Shows Sun's Structure 2012-05-21T15:15:11.850Z Unlike the chromosphere, the corona has been known for many centuries: it was referred to by the Roman historian Plutarch and was discussed in some detail by Kepler. Astronomy 2016-10-13T00:00:00Z The sun's original image is nearly 17 inches in diameter on the plate, and the solar chromosphere and prominences, together with the photosphere and facul�, are all recorded by monochromatic light. Astronomy: The Science of the Heavenly Bodies 2012-03-17T02:01:02.630Z In the general solar spectrum this element is represented by a large number of lines, but in the spectrum of the prominences and chromosphere one pair only can be detected. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 8 "Hudson River" to "Hurstmonceaux" 2012-02-24T03:00:27.173Z This layer of luminous gases is called the chromosphere, or coloured sphere. Through Magic Glasses and Other Lectures A Sequel to The Fairyland of Science 2011-10-03T02:00:33.003Z This crimson rim, the sierra or chromosphere as it is usually called, is always to be found edging the entire Sun, and therefore must carpet the surface everywhere. Are the Planets Inhabited? 2011-04-24T02:00:07.733Z Vast plumes of gas erupt into the chromosphere and corona. Astronomy 2016-10-13T00:00:00Z From the outer surface of the sun's chromosphere rise in eruptive columns vapors of hydrogen and the various metals of which the sun is composed. Astronomy: The Science of the Heavenly Bodies 2012-03-17T02:01:02.630Z As spicules measuring in the tens of thousands of degrees kelvins rise from the chromosphere, the researchers noticed, patches of the corona above flare up at one million to two million degrees. Feeling the Heat 2011-02-15T05:16:57.373Z This photograph completely confirms Young’s discovery, and shows the prominent Fraunhofer lines bright, the bright lines of the chromosphere spectrum being especially conspicuous. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 10 "Echinoderma" to "Edward" 2011-01-19T03:00:19.027Z But under ordinary conditions, we do not see the chromosphere itself, but look down through it on the photosphere, or general radiating surface. Are the Planets Inhabited? 2011-04-24T02:00:07.733Z Make a sketch of the Sun’s atmosphere showing the locations of the photosphere, chromosphere, and corona. Astronomy 2016-10-13T00:00:00Z Beneath the chromosphere is the layer of the sun from which emanates the light by which we see it, called the photosphere. Astronomy: The Science of the Heavenly Bodies 2012-03-17T02:01:02.630Z The varying aspect of the spectra suggested at one time the sun's chromosphere, at another time the conditions that are present in nebul�, etc. A Text-Book of Astronomy 2011-01-05T03:00:57.347Z This layer is much thinner than the chromosphere, and may be considered to form the base of the latter. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 10 "Echinoderma" to "Edward" 2011-01-19T03:00:19.027Z So far as the sun's chromosphere is concerned, the possible amount of radium present would seem to be very small. A Brief Account of Radio-activity The region of the Sun’s atmosphere that lies immediately above the photosphere is called the chromosphere. Astronomy 2016-10-13T00:00:00Z Between photosphere and chromosphere is a very thin envelope, probably not over 700 miles in thickness, called the reversing layer. Astronomy: The Science of the Heavenly Bodies 2012-03-17T02:01:02.630Z He argues that it is formed within the mass of cooled hydrogen drawn from the chromosphere into the vortex of the cyclone. Essays: Scientific, Political, & Speculative, Vol. I This can only be attributed to the reflection of the light of the prominences and chromosphere from the atmosphere between us and the moon. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 10 "Echinoderma" to "Edward" 2011-01-19T03:00:19.027Z Later on, just before the moon begins to uncover the face of the sun from the other side, we may again get a view of a strip of chromosphere. Astronomy of To-day A Popular Introduction in Non-Technical Language The name chromosphere, from the Greek for “colored sphere,” was given to this red streak. Astronomy 2016-10-13T00:00:00Z Their light shines through the chromosphere and the spots are ruptures in this envelope. Astronomy: The Science of the Heavenly Bodies 2012-03-17T02:01:02.630Z In every part of Europe, as well as in North America, observers devoted themselves to the daily study of the chromosphere and prominences. A Popular History of Astronomy During the Nineteenth Century Fourth Edition A few seconds before the commencement of the total phase the red light of the chromosphere becomes visible, and will be seen most distinctly as continuations of the solar crescent at its two ends. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 10 "Echinoderma" to "Edward" 2011-01-19T03:00:19.027Z This is a shallow layer of gases which lies immediately beneath the chromosphere. Astronomy of To-day A Popular Introduction in Non-Technical Language The temperature of the chromosphere is about 10,000 K. This means that the chromosphere is hotter than the photosphere, which should seem surprising. Astronomy 2016-10-13T00:00:00Z Still more violent are the convulsions when, from the surface of the chromosphere, as from a mighty furnace, vast incandescent masses of gas are projected upwards. The Story of the Heavens What we now call the "chromosphere" is an envelope of glowing gases, by which the sun is completely covered, and from which the "prominences" are emanations, eruptive or flame-like. A Popular History of Astronomy During the Nineteenth Century Fourth Edition A third layer or envelope immediately lying over the last one is the region known as the chromosphere. The Outline of Science, Vol. 1 (of 4) A Plain Story Simply Told When the chromosphere, in its turn during a total eclipse, has been covered by the moon, the corona alone is left. Astronomy of To-day A Popular Introduction in Non-Technical Language Note the very rapid increase in temperature over a very short distance in the transition region between the chromosphere and the corona. Astronomy 2016-10-13T00:00:00Z They are, in fact, thrown up from the chromosphere like gigantic jets of incandescent material. The Story of the Heavens Filaments were then thrown out downward towards the chromosphere, and finally the usual appearance of a "stemmed prominence" was assumed. A Popular History of Astronomy During the Nineteenth Century Fourth Edition From the uppermost portion of the chromosphere great fiery tongues of glowing hydrogen and calcium vapour shoot out for many thousands of miles, driven outward by some prodigious expulsive force. The Outline of Science, Vol. 1 (of 4) A Plain Story Simply Told The outer surface of the chromosphere is not by any means even. Astronomy of To-day A Popular Introduction in Non-Technical Language However, we now know that while this idea of layers—photosphere, chromosphere, transition region, corona—describes the big picture fairly well, the Sun’s atmosphere is really more complicated, with hot and cool regions intermixed. Astronomy 2016-10-13T00:00:00Z In such cases what we witness is evidently caused by movements along the surface of the chromosphere, conveying materials towards us or away from us. The Story of the Heavens Hence was derived a general and fully justified conviction that there could be outside, and incumbent upon the chromosphere, no such vast atmosphere as the corona appeared to represent. A Popular History of Astronomy During the Nineteenth Century Fourth Edition These flaming jets or prominences shooting out from the chromosphere are not to be seen every day by the naked eye; the dazzling light of the sun obscures them, gigantic as they are. The Outline of Science, Vol. 1 (of 4) A Plain Story Simply Told In the same way as the corona, the chromosphere and prominences were for a time supposed to belong to the moon. Astronomy of To-day A Popular Introduction in Non-Technical Language For example, clouds of carbon monoxide gas with temperatures colder than 4000 K have now been found at the same height above the photosphere as the much hotter gas of the chromosphere. Astronomy 2016-10-13T00:00:00Z The line is always present among the bright lines of the chromosphere spectrum. The Story of the Heavens The substance emitting them not only constitutes a fundamental ingredient of the chromosphere, but rises, in the fantastic jets thence issuing, to greater heights than hydrogen itself. A Popular History of Astronomy During the Nineteenth Century Fourth Edition The spectroscope shows us that this chromosphere contains in the state of vapour a number of metallic substances, such as iron and magnesium. Outlines of the Earth's History A Popular Study in Physiography The colour of the chromosphere is, in reality, a brilliant scarlet; but, as we have already said, the intensely white light of the photosphere shines through it from behind, and entirely overpowers its redness. Astronomy of To-day A Popular Introduction in Non-Technical Language Finally, the hydrogen set free at the base of the whirlpool becomes reheated at this Page 92 great depth, and rises up tumultuously around the whirlpool, forming irregular jets, which appear above the chromosphere. Recreations in Astronomy With Directions for Practical Experiments and Telescopic Work The gaseous envelope from which the prominences spring has been called the chromosphere on account of the coloured lines displayed in its spectrum. The Story of the Heavens Slender columns can ordinarily be seen to connect the surface of the chromosphere with its outlying portions. A Popular History of Astronomy During the Nineteenth Century Fourth Edition Below the chromosphere is the photosphere, the lower envelope of the sun, if it be not indeed the body of the sphere itself; from this comes the light and heat of the mass. Outlines of the Earth's History A Popular Study in Physiography The solar spectrum is really composed of three separate spectra commingled, i.e. those of the photosphere, of the reversing layer, and of the chromosphere respectively. Astronomy of To-day A Popular Introduction in Non-Technical Language This region of discontinuous flame below the corona is called the chromosphere. Recreations in Astronomy With Directions for Practical Experiments and Telescopic Work About a dozen less conspicuous lines were gradually identified in the spectrum of the prominences and the chromosphere, which appeared also to be caused by this same mysterious helium. The Story of the Heavens At a distance, and quite apart from the chromosphere, prominences have been perceived, both by Secchi and Young, to form, just as clouds form in a clear sky, condensation being replaced by ignition. A Popular History of Astronomy During the Nineteenth Century Fourth Edition Below the corona and sharply separated from it the observer finds another body of very dense vapour, which is termed the chromosphere, and which has been regarded as the atmosphere of the sun. Outlines of the Earth's History A Popular Study in Physiography Taking into consideration the excessive force of gravity on the sun, one would expect to find the chromosphere and reversing layer growing gradually thicker in the direction of the photosphere. Astronomy of To-day A Popular Introduction in Non-Technical Language It had then three bright hydrogen lines, the strong double sodium line, and others, which made, it strongly resemble the spectrum of the chromosphere of our sun. Recreations in Astronomy With Directions for Practical Experiments and Telescopic Work Such lines are very numerous, but those pertaining to the single substance, hydrogen, predominate so greatly that we may say the chromosphere consists chiefly of this element. The Story of the Heavens Some of them rush through the chromosphere to a height of 80,000 miles in 15 minutes. A Trip to Venus There is a small envelope around the sun, but in the opinion of Dr. Hastings it does not extend beyond what is known as the chromosphere. Scientific American Supplement, No. 401, September 8, 1883 The layer itself appears to be in a fairly quiescent state; a marked contrast to the seething photosphere beneath, and the agitated chromosphere above. Astronomy of To-day A Popular Introduction in Non-Technical Language If it were normally in the sun's chromosphere, or coronal atmosphere, he said, it would combine with the hydrogen which we know is there and form an obscuring envelope of water vapor. Curiosities of the Sky Immediately surrounding the disc of the sun, which is visible to the naked eye, is a brilliant ring of light, known now as the chromosphere or sierra. Story of Creation as Told By Theology and By Science We have already seen, in dealing with total eclipses, that the exterior surface of the chromosphere is agitated like a stormy sea, and from it billows of flame are tossed up to gigantic heights. Astronomy of To-day A Popular Introduction in Non-Technical Language The eruptive prominences spurt up directly from the chromosphere with immense speeds, and change their shape with great rapidity. Astronomy of To-day A Popular Introduction in Non-Technical Language |
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