The eye is applied to the spectroscopic end of the complex arrangement to watch the development of solar hurricanes.
Refined spectroscopic analysis of light is now made so that when any material burns, no matter what its distance, its spectrum tells what substance is burning.
An instrument devised by Hermann, for regulating and measuring the thickness of a layer of blood for spectroscopic examination.
But although in Michelson's hands the apparatus has done excellent spectroscopic work, it is not without its weak points.
I can't figure out why Pop found such strong spectroscopic lines of that new element while we were billions of miles away, and yet we can't find any traces of it anywhere on these planets, except what we found in that cache.
I had an idea, from the spectroscopic examinations we made 'way back there near Sirius, that we'd find it fairly good here.
Both components are spectroscopic binaries, and the system is a most interesting one.
Spectroscopic measures show that it is approaching the earth at the rate of 16 miles a second; but this would have no perceptible effect on its brightness in historical times.
It has recently been found to be a spectroscopic binary.
The star is a spectroscopic binary, it is true, but the maximum of light coincides with the greatest velocity of approach in the line of sight, and the minimum with the greatest velocity of recession.
Of those V Puppis and [Greek: b] Lyrae are known spectroscopic binaries.
Spectroscopic observations show that it is a very close binary pair.
Some recent spectroscopic observations seem to favour the short period.
Thus the light curve and the spectroscopicvelocity curve are very similar in shape, but one is like the other turned upside down.
The brighter component was found to be a spectroscopic binary by Wright, so that on the whole the star is a most interesting object.
Adams, by his spectroscopic method applied with the 60-inch Mount Wilson reflector, obtained 0.
Spectroscopic observations now in regular progress have carried the range of these investigations far beyond the possibilities of the 60-inch telescope.
Is not this a rational conclusion, since it has been demonstrated by universal chemistry and spectroscopic analysis that all laws, force and substance are the same in all suns and worlds and throughout the universe?
I contend that no reliance can be placed in the spectroscopic evidence of heat in the sun, or any distant globe.
These two observers at once directed their telescope armed with spectroscopic adjuncts--the telespectroscope is the pleasing name of the compound instrument--to the new-comer.
It may be well, however, before describing it, to indicate in a few words the meaning of various kinds of spectroscopic evidence.
Spectroscopic analysis, that powerful help to the modern astronomical inquirer, has shown in one of these cases that just such changes had taken place as we might fairly expect would follow if a mighty comet fell into the sun.
Spectroscopic analysis and exact telescopic scrutiny will not permit some speculations to be entertained which formerly met with favour.
It is worthy of remark that the community of motion is also shown by spectroscopic observations of the radial motions described below.
A second method is based on the spectroscopic measures of the motion of stars in the line of sight, or the line from the earth to the star.
The coincidence between the spectroscopic and the photometric evidence permits us to feel complete confidence in the theory of eclipses.
This star, which is the Algol variable V Puppis, has been found to be a spectroscopic binary.
As the star is faint, there is as yet no direct spectroscopic evidence of orbital motion.
The matter rested thus for some months until the spectroscopic evidence was re-examined by Miss Cannon on behalf of Professor Pickering, and we find in the notes on page 177 of Vol.
The spectroscopic method has been successfully applied in this case, and the component stars are proved to move in an orbit about one another.
Still more recently, he has collected the alpha-particles shot through an extremely thin wall of glass, and demonstrated by direct spectroscopic evidence the presence of helium.
Instead of a single measure for each star, in the case of the so-called spectroscopic binaries, we must make enough measures to determine the dimensions of the orbit, its form and the period of revolution.
To secure satisfactory spectroscopic observations of nebulae is often very difficult.
In general, the proportion of spectroscopic doubles discovered to date is greatest in Class B and decreases as we proceed toward Class M.
And spectroscopiccoincidences admit of no compromise.
Now all these bodies had kept at a respectful distance from the sun; for of the great comet of 1880 no spectroscopic inquiries had been made.
For more than a score of years it held its ground as the universal standard of reference in all spectroscopic inquiries within the range of the visible emanations.
The first spectroscopicstar catalogue was published by Dr.
And so fully is it compensated by the great light-grasping power of modern telescopes that important information can now be gained from the spectroscopic examination of stars far below the range of the unarmed eye.
A definitive scale for the spectroscopic determination of absolute magnitudes has now been established, and the parallaxes and absolute magnitudes have already been derived for about 1,800 stars.
Capella has been found to be a spectroscopic binary; also the pole star.
Recent spectroscopic observations of the nebulae applying the principle of Doppler have revealed high velocities of rotation.
By the spectroscopicmethod the proportion is not so large; Campbell finding that about one quarter of 1,600 stars examined are spectroscopic binaries, and Frost two-fifths to a half.
The spectroscopic evidence of water vapor in the Martian atmosphere is not very strong.
In 1889 the spectroscope achieved an unexpected triumph by enabling the late Professor Pickering to make the first discovery of a spectroscopic double, or binary star, a type of object now quite abundant.
These pioneer observations of motions in the line of sight, or radial velocities as they are now called, led directly to the acceptance of the high value of spectroscopic work as an adjunct of exact astronomy in stellar research.
Spectroscopic binaries form one of the special fields of research with this powerful instrument, and many new binaries have already been detected.
But the complete vindication of the spectroscopic method as an adjunct of the old astronomy came with its application to measurement of the distance of the sun.
So small a parallax value is of little reliability when it is directly computed from annual parallax observations, but is more trustworthy when derived with the spectroscopic method of ADAMS.
Through the spectroscopic method of ADAMS it will be possible to enlarge this number considerably, so that the distance of all stars, for which the spectrum is well known, may be determined with fair accuracy.
Spectroscopic astronomy had become a distinct and acknowledged branch of the science, possessing a large literature of its own, and observatories specially devoted to it.
Huggins is one of the most eminent astronomers of the present day, and his spectroscopic researches on the celestial bodies have had the most important results.
The primary task of the sun's motion in space, together with the motions of the brighter stars, had been already put well within our reach by the spectroscopic method of the measurement of star motions in the line of sight.
It thus appears that spectroscopic observations are quite accordant with the calculations founded on the molecular theory of gases as to the absence of aqueous vapour, and therefore presumably of liquid water, from Mars.
The blood gave no bands for methaemoglobin, but showed merely those of oxyhaemoglobin on spectroscopic examination.
The spectroscopic test, however, failed to show caesium in the ashed plant.
The ash of the Astragalus pectinatus (Hugo, June, 1907) was reported by the Bureau of Chemistry to show no barium on spectroscopic examination.
A sample of Aragallus lamberti and one of Astragalus mollissimus were sent to the Bureau of Chemistry forspectroscopic examination for various elements and they reported traces of barium in each.
The hard atom, however, seems to be refuted by spectroscopic analysis, which reveals to us in a manner that has never been revealed before, something of the sizes and vibrations of atoms.
That they are all composed of exactly similar elements of which the earth is composed, has been proved again and again by spectroscopic analysis, which teaches that hydrogen, iron, and calcium, etc.
So that spectroscopic results seem to confirm this hypothesis, as the pure Aether that would surround every star, or multiples of stars, would certainly not reveal any dark lines by means of the spectroscope.
This hypothesis was confirmed by Professor Vogel about 1889 by means of spectroscopic results.
Now if all the stars move through space with varying velocities, as spectroscopic and telescopic observations seem to suggest, the question naturally confronts us as to what is the particular kind of orbit which each star completes?
The purity of the compounds thus obtained is checked byspectroscopic observations.
Sir Norman Lockyer during a spectroscopicexamination of the sun's chromosphere.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "spectroscopic" in a variety of sentences. We hope that you will now be able to make sentences using this word.
