Stellar Sentence Examples

As early as 1573, Thomas Digges had suggested that this theory should necessitate a parallactic shifting of the stars, and, consequently, if such stellar parallaxes existed, then the Copernican theory would receive additional confirmation.

The moon was the earliest " measurer " both of time and space; but its services can scarcely have been rendered available until stellar " milestones " were established at suitable points along its path.

In 1882 Pritchard commenced a systematic study of stellar photometry.

In 1876 he successfully applied photography to the study of the ultra-violet region of stellar spectra.

The final stage of stellar evolution depends upon star size.

Now it is necessary to bear in mind that all observed motions are relative; and, especially in dealing with stellar motions, it is arbitrary what shall be considered at rest, and used as a standard to which to refer their movements.

If she wants cheerleaders with stellar tumbling skills, make sure you're practicing your tumbling runs.

Spiral nebulae have the remarkable characteristic of avoiding the galactic plane, and it has been suggested that the space outside the limits of the stellar universe is filled with them.

See, Evolution of Stellar Systems, and another list will be found in Lick Observatory Bulletin, No.

He also discussed many other problems, such as stellar distribution, the extent of the universe, &c., whilst at Brera.

Man's place is not even central, as he appears a temporary inhabitant of a minor planet in one of the lesser stellar systems. Every science is involved, and theology has come into conflict with metaphysics, logic, astronomy, physics, chemistry, geology, zoology, biology, history and even economics and medicine.

The advances in stellar photography made by Paul and Prosper Henry and others suggested to him the magnificent idea of obtaining, through the collaboration of astronomers in all parts of the world, an autographic picture of the entire sphere containing more than fifty million stars, which should faithfully record in future ages the state of the sky at the end of the i 9th century.

From the astronomers the Stoics borrowed their picture of the universe - a plenum in the form of a series of layers or concentric rings, first the elements, then the planetary and stellar spheres, massed round the earth as centre - a picture which dominated the imagination of men from the days of Eudoxus down to those of Dante or even Copernicus.

He invented the spectroheliograph first used in 1892 for photographing solar prominences and won an international reputation for his solar and stellar spectroscopic work.

He was the author of The Study of Stellar Evolution (1908) and Ten Years' Work of a Mountain Observatory (1915), besides numerous papers in the Contributions from the Mount Wilson Observatory and other scientific publications.

He observed the total solar eclipse of the 18th of July 1860, at Torreblanca in Spain, and in the same year began experiments in stellar spectroscopy.

Thus has arisen in recent times what we may regard as a third branch of astronomical science, known as Stellar Statistics.

The principal modification is that,up to the present time, stellar astronomy has not advanced so far that a computation of the perturbations in each case of a system of stars is either necessary or possible, except in exceptional cases.

Moreover, the absence of sensible parallaxes in the stellar heavens seemed inconsistent with its validity; and a mobile earth outraged deep-rooted prepossessions.

It does in fact prevail among the satellite-families of our acquaintance, and presumably in stellar combinations as well.

Meanwhile, the elementary requirement of making visual acquaintance with the stellar heavens was met, as regards the unknown southern skies, when Johann Bayer published at Nuremberg in 1603 a celestial atlas depicting twelve new constellations Bayer.

The proof supplied by him in 1802 that coupled stars mutually circulate threw open a boundless field of research; and he originated experimental inquiries into the construction of the heavens by systematically collecting and sifting stellar statistics.

He, moreover, definitively established, in 1783, the fact and general direction of the sun's movement in space, and thus introduced an element of order into the maze of stellar proper motions.

Photometric catalogues, accordingly, form an indispensable part of stellar statistics; and their construction has been zealously prosecuted.

The exhaustive ascertainment of stellar parallaxes, combined with the visible facts of stellar distribution, would enable us to build a perfect plan of the universe in three dimensions.

The assured general fact as regards the direction of stellar movements was that they included a common parallactic element due to the sun's translation.

Yet the general agreement of solar and stellar chemistry does not exclude important diversities of detail.

He observed, in 1823, dark lines in stellar spectra which Kirchhoff's discovery supplied the means of interpreting.

There ensued a general classification of the stars by Secchi into four leading types, distinguished by diversities of spectral pattern; and the recognition by Huggins of a considerable number of terrestrial elements as present in stellar atmospheres.

C. Vogel published a modification of Secchi's scheme of stellar diversities, and gave it organic meaning by connecting spectral differences with advance in " age."

Stellar lineof-sight work, however, made no satisfactory progress until, in 1888, Vogel changed the venue from the eye to the camera.

Lastly, we may mention a few distinguished men who ran counter to their age in denying stellar influences.

The partition of the stellar expanse into areas characterized by specified stars can be traced back to a very remote antiquity.

I'm just feeling magnanimous after my stellar performance with the socialite.

Sort by Sort output list by distance from search center (in arcminutes ), increasing right ascension or declination, or stellar magnitude.

The importance of stellar astrophysics is evident in a broad range of areas.

This will keep stellar brightness near normal, with some minor color shift.

Still, you'll have had your money's worth by then, thanks to a truly stellar cast.

The central region of NGC 1705 is dominated by a gigantic unresolved stellar cluster.

His stellar performance complete failure to help out the peugeot workers at Ryton has probably hastened his shift to another portfolio.

The whole area is covered in stars, creating a proverbial stellar haystack.

This lush coastal wilderness is home to abundant wildlife including humpback and orca whales, puffins, and stellar sea lions.

The mass-loss from these objects is invariably very inhomogeneous which has important implications for stellar wind dynamics.

In a stellar interferometer, the light sources can be two stars, or light from opposite ends of a star along its diameter.

What is the relation between stellar luminosity and stellar mass?

Until now methanol masers have been found only in association with massive young stellar objects.

We address these objectives by producing albedo maps, and reflection and emission spectra, and observing stellar occultations.

His reasoning was correct, but even Tycho's marvelous instruments were not accurate enough to register stellar parallax given the vast distances involved.

A range of stellar phenomenology and behavior will be presented together with basic astrophysical interpretations.

They treated the raw model colors in the same manner as raw stellar photometry.

It continues to lose mass via a stellar wind as it dies, forming a planetary nebula.

Abstract Fourier decomposition is a well-established technique used in the study of stellar pulsation.

However, the pattern of lines did not match any of the lines seen in thousands of stellar spectra gathered over a hundred years.

What is the relation between stellar luminosity and stellar luminosity and stellar mass?

The movie itself is a enormous amount of fun that benefits from the company of an absolutely stellar cast.

Lumagen's own calibration, and video processing algorithms are used to complement and enhance the already stellar Realta HQV processing.

The 2007 course will involve an equally stellar cast of characters.

I accept that the Church's history is not always stellar where helping the poor is concerned.

Saturday Mainstage Stars don't come much more stellar than this.

Stellar properties are collected from the literature (references given below as indicated by superscripts ).

The high temperature central regions drive the outer half of the star away in a brisk stellar wind, lasting a few thousand years.

Look for him to get the games first touchdown, but not have a stellar day.

It's a stellar nursery centered on a bright open cluster called The trapezium.

Vogel of Potsdam introduced the method of photographing stellar and terrestrial spectra on the same plate, and in this way obtained an immense advance in the ease and precision of observation.

To derive the stellar velocity in the line of sight relative to the observer it was then necessary to assume that the normal wave-lengths of the stellar and terrestrial spectra are accurately known.

But the spectroscopes that can be employed for stellar spectroP graphs are not sufficiently powerful to separate fully lines which are very closely adjacent, and therefore a line, assumed to be of a known wave-length, may be apparently displaced by the near neighbourhood of an unknown line.

The solar spectrograph is attached by clamps to the plate A l, the stellar spectrograph to the plate A2.

The screw Q serves to adjust the axis of O i to coincidence with the centre of the lines of the solar spectrograph, and the screw G then serves to move the slide 132 till the optical axis of 0 2 is coincident with the centre of the lines of the stellar spectrograph.

If the stellar spectrograph is viewed in the focus of 0 2 and the converging rays are reflected by the prism P2 to P4, no image would be seen in the eyepiece, for the rays would pass out directly through the parallel glass plate which is formed by the cementing together of the prisms P 3 and P 4.

Therefore, if one-half of the cemented face of P4 is silvered, it becomes possible to view, side by side, one-half of the image of the solar spectrograph formed by 0 1 and one-half of the image of the stellar spectrograph formed by 02.

This has the effect of forming the image of the latter farther from the observer's eye, and so it becomes necessary to turn the handle of the rack-pinion V in such a way as to move the prisms P3 and P4 nearer to P2 till the lines of the stellar spectrograph are again sharply in focus.

The effect of turning the pinion V is, of course, to displace the focus both of the solar and stellar spectrographs in the field of the eyepiece, but this d .a displacement is easily restored by From Zeitschr.

It is obvious that these two conditions can be produced at the will of the observer by simply turning the screw S, and that the difference of the readings of the screw-head, which are required to reproduce the two conditions in question, gives a measure of the displacement of the stellar lines relative to the solar lines.

In 1877 he decided to devote one of the telescopes of the observatory to stellar photometry, and after an exhaustive trial of various forms of photometers, he devised the meridian photometer (see Photometry, Stellar), which seemed to be free from most of the sources of error.

Yet this number, although it represents a portentous expenditure of labour, is insignificant compared with the multitude of the stellar throng; nor had any general tendency been discerned to regulate what seemed casual flittings until Professor Kapteyn, in 1904, adverted to the prevalence among all the brighter stars of opposite streamflows towards two " vertices " situated in the Milky Way (see Star).

Of these formulae '(chosen because illustrated by Greek heroic legends) - (I) is a sanction of barbarous nuptial etiquette; (2) is an obvious ordinary incident; (3) is moral, and both (3) and (1) may pair off with all the myths of the origin of death from the infringement of a taboo or sacred command; (4) would naturally occur wherever, as on the West Coast of Africa, human victims have been offered to sharks or other beasts; (5) the story of flight from a horrible crime, occurs in some stellar myths, and is an easy and natural invention; (6) flight from wizard father or husband, is found in Bushman and Namaqua myth, where the husband is an elephant; (7) success of youngest brother, may have been an explanation and sanction of " tungsten-recht " - Maui in New Zealand is an example, and Herodotus found the story among the Scythians; (8) the bride given to successful adventurer, is consonant with heroic manners as late as Homer; (9) is no less consonant with the belief that beasts have human sentiments and supernatural powers; (to) the " strong man," is found among Eskimo and Zulus, and was an obvious invention when strength was the most admired of qualities; (II) the baffled ogre, is found among Basques and Irish, and turns on a form of punning which inspires an " ananzi " story in West Africa; (12) descent into Hades, is the natural result of the savage conception of Hades, and the tale is told of actual living people in the Solomon Islands and in New Caledonia; Eskimo Angekoks can and do descend into Hades - it is the prerogative of the necromantic magician; (13) " the false bride," found among the Zulus, does not permit of such easy explanation - naturally, in Zululand, the false bride is an animal; (14) the bride accused of bearing be 1st-children, has already been disposed of; the belief is inevitable where no distinction worth mentioning is taken between men and animals.

That information enables us to compare stellar coronae with the solar corona.

Then chances are you may already be part of our stellar speaker line-up.

Lumagen 's own calibration, and video processing algorithms are used to complement and enhance the already stellar Realta HQV processing.

I accept that the Church 's history is not always stellar where helping the poor is concerned.

Saturday Mainstage Stars do n't come much more stellar than this.

Stellar properties are collected from the literature (references given below as indicated by superscripts).

It 's a stellar nursery centered on a bright open cluster called The Trapezium.

Singularity While Enterprise is surveying a black hole in a trinary star system, the stellar phenomenon causes strange effects on the crew.

Another source of uncertainty in this estimate lies in our ignorance of some of the finer details of stellar evolution.

Buying a foreclosed property can be a great way to get a stellar deal on a house.

Whether you are looking for children's items, toys, designer clothing, or gifts, Johnson Creek has a stellar lineup of 60 stores for your purchasing convenience.

However, armed with the basic facts of home surveillance you might have no trouble getting yourself a stellar deal by buying your home security surveillance system online.

Selecting the right whiskey is the key to creating a stellar Washington Appletini cocktail.

These cards offer stellar services and benefits, and it's considered a sign of prestige for a business to have an American Express corporate card.

The APR may be as high as 22.24 percent for those with less stellar creditworthiness.

For designers without certification, references and a stellar portfolio become even more essential.

Walker Zanger has over 55 years of a stellar reputation in the stone tile industry as a manufacturer and distributor of some of the world's best tiles.

Mark cosmetics offers a stellar cosmetic line.

The two darkest shades in brownie are stellar eye shadows - use the darkest in the crease and dust the other all over the lid for a gorgeous holiday look.

Another way to get stellar candid shots is to blend into the background.

You may think that your camera's flash will aid in taking stellar shots of fireworks, but it is unlikely that a built-in flash or even an add-on will be powerful enough to further illuminate the night sky.

What's more, stellar equipment can help you gain experience shooting in different situations, and with practice comes confidence.

Nothing impresses a crowd quite like stellar water shots.

While viewing examples of photography poses can acquaint you with different looks, the best way to capture a stellar shot is to make sure your subjects are comfortable in front of the camera.

Making the model feel as comfortable as possible will go a long way in helping you to snap stellar glamour figure shots.

This basically means that no matter what the occasion, you have something stellar to wear.

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Learn more about this stellar teen and the ways she became one of five girls chosen from the United States to be an "It Girl."

Crate & Barrel's comprehensive Resource Guide offers everything a couple needs to create a stellar registry.

A Macy's wedding registry simplifies the procedure by providing all of the tools necessary to create a stellar collection of wedding gift ideas for guests.

Perhaps this will be a wake up call for Haley Joel Osment, and he will use it as a stepping stone to get what was once a stellar acting career back on track.

His stellar career has gone from strength to strength from the time he emerged from his native Philadelphia, bringing with his a crossover friendly version of rap music that would revolutionize music.

Matt Damon - Damon had a stellar decade in the 2000's.

Aside from one or two standouts, this season of American Idol is far from stellar.

Though she has lead a very busy career with comedy tours, television shows and film appearances, 2009 was a stellar year for her, opening up many doors for her future.

Although the pay is far from stellar, you should be able to earn a decent amount of spending money.

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In addition to having a stellar resume geared toward your desired job, there are other things you can do to help make yourself a more desirable employee.

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Chicken manure sounds icky but actually it's considered a perfect fertilizer for yards and gardens because of its stellar nitrogen composition.

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Amazon has a stellar collection of Vigilante looks.

This translates into being able to intelligently compare prices and it makes it that much easier to spot a stellar deal!

The original title is re-imagined with stellar high-definition graphics and the same trusted gameplay engine.

Nevertheless, several stellar titles hit the shelves that are worth looking at.

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Although they don't always have the latest games or the largest selection, Outpost.com, the online extension of Fry's Electronics Store, occasionally has stellar prices on new video games.

That said, it's tough to shake the feeling that, once you turn a room inside out with the stellar control scheme, you've been there and done that.

A major part of any RPG is the battle system, and Final Fantasy 7 does a stellar job.

The target audience of Star Wars fans and Lego aficionados will especially enjoy it, and it is a stellar family title.

History has shown that players featured on the cover of a Madden football game have gone on to have less than stellar seasons.

Included was a stellar battle mode that allowed you to take on three or more friends in huge, non-linear arenas.

Beginning with the stellar Super Mario Kart back in the days of the Super Nintendo, the racing genre was broken wide open.

The only bone to pick with this stellar title is a small one that will go largely unnoticed.

The stellar audio and visuals only deepen an already immersive experience.

The PlayStation 3 controller was never designed for typing long strings of text, so you are left with a less than stellar on-screen keyboard that can be quite difficult to use.

Despite the massive popularity and stellar sales of Tetris, its creator had seen very little money.

Wind Waker, Link's first GameCube adventure, is widely regarded as a stellar game but is often criticized for its cell-shaded, cartoon look.

Head over to their website to get a ton of other songs, including their stellar Booster's Tower remix.

Many French wines have a deserved stellar reputation for excellence around the world.

Rochioli Vineyards are a stellar producer of wines, most notably Pinot Noir, with their winery located in the Russian River Valley region of Sonoma County.

A regular rehearsal schedule is also essential for becoming a stellar dance team.

While products and equipment alone will not create a stellar style, using the appropriate tools helps the style look as stunning as it would in a salon.

A healthy hair diet can help provide the necessary protein and nutrients for stellar hair growth as well as the nutrition necessary to keep long hair shiny, strong, and manageable.

Whether you want to create a variety of looks ease the grow-out process or help to disguise a less than stellar cut, you can do it all in celebrity style with Jessica and Ken's full line of budget-friendly hair extensions.

If you are looking for a professional real estate inspector, Illinois state licensing laws will go a long way to protect you against shoddy quality and less-than stellar professionalism.

There are ways you can look like a stellar employee during your maternity leave and receive a great review whether you are on leave or not.

Only your stellar ability to plan and handle a schedule will get you through your first few weeks back to work.

Diane Von Furstenberg is probably best know for her stellar wrap dresses but she has added a few maternity gems to her collections.

For those interested in a "challenging, fun and interesting" way to see San Francisco, as well as some stellar cardiovascular exercise, choose Stairways Across San Francisco with tour guide Dennis Macheel.

Carrie Prejean swimsuit pictures clearly show that the former Miss California looks stellar in a bathing suit.

The company has a stellar reputation for carrying hard-to-find costume patterns.

The band didn't get off to a stellar success.

If you are budget minded and need a special occasion dress, seek out resale shops or online auction sites such as eBay for stellar savings.

The book and the interview served as the catalyst that launched him into a stellar career in Entertainment, landing him his own show Crossing Over with John Edward on the Sci-Fi Channel.

Several brand name camera manufacturers offer stellar digital options for a couple hundred dollars or less.

Michelle Forbes (ex-Sonni/Solita, Guiding Light) and Ashley Jones (Bridget Forrester, Bold and the Beautiful) join the stellar cast of True Blood in the roles of Mary Ann and Daphne.

Season Two of True Blood debuted on HBO in June 2009 to stellar ratings.

What makes True Blood work is in large part due to the stellar cast embodying the characters and a writing staff that shows admiration for author Charlaine Harris' work.

Shooting stars art tattoo is also a way to show appreciation of life's little miracles or stellar occasions.

Down the road, you can add stars, planets and even constellations for a unique and stellar piece.

Those wishing for gorgeous views of Times Square will pay slightly higher nightly rates than those opting for less stellar views.

The majority of vacationers only have a limited amount of time to take a break from everyday life, and they don't want to waste it on a vacation that is less than stellar.

Disney, Carnival and Royal Caribbean have stellar reputations for offering the best family-friendly amenities.

Another stellar entry in the Breitling Chronomat Evolution series, the Breitling Chronomat Evolution 453 features a stunning blue scheme and comes equipped with chronomat and calendar.

The Breitling Men's Aerospace Advantage Watch is from Breilting's stellar Aerospace line.

Another stellar entry in the Breitling/Bentley team-up, the New Breitling Bentley Motors Mens Solid 18K Gold Watch K25362/B687 retails at a whopping $33,920.

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Another stellar entry in the Breitling/Bentley team-up, the New Breitling Bentley Motors Mens Solid 18K Gold Watch K25362/G555 retails at a whopping $33,920.

The Bulova Gents is a stellar timepiece that retails at $650.

Tissot is known for their stellar customer service.

Yoga memory foam mats cost considerably more than a traditional yoga mat, but receive stellar reviews from most customers.

This mat has gotten stellar reviews from yoga teachers and parents alike.

Most people set out to write a stellar letter, but these mistakes could hold the subject of the recommendation letter back.

On the other hand, you could be very well qualified for the position but if your resume is not stellar, you will lose out on the opportunity to sell the employer on why you would be a good fit for the position.

Many experts believe that the stellar sales are a combination of having a reputation for high quality as well as a cost-effectiveness which draws in consumers that would otherwise normally opt for other economy cars with lower quality.

If this is a home game, you'll need to make sure your half-time routine is stellar.

This may sound fairly easy, and for the most part, it is, if you happen to have a stellar memory.

This chocolate ganache glaze recipe shows how to create a stellar topping using equal parts cream and chocolate.

If a company has a less than stellar rating, consider purchasing a different policy.

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This company is a particularly good option for drivers who do not have a stellar driving history because there are other discounts available beyond good driver discounts.

The Vermont Country Store is a BBB Accredited business with an A+ rating and is rated Elite by Stellar Service.

Rycroft finished in second place on that premiere episode, which was a stellar showing for having so little time to prepare.

These stellar skin care companies know important keeping youthful-looking skin is to women and men.

By providing a stellar example of various techniques to get their own page ranks higher, the SEO in El Dorado's own site provides confidence for their clients.

The application of photography to exact astronomy has created the necessity for new forms of apparatus to measure the relative positions of stellar and planetary images on photographic plates, and the relative positions of lines in photographic spectra.

He now resolved to try the experiment of applying photography to the determination of stellar parallax.

He was elected a fellow of the Royal Society in 1840, and in 1892 was awarded one of the royal medals for his work on photometry and stellar parallax.

The average speed is obtained very accurately from solar and stellar observations for the position of the ship. The difference between the speed of the ship and the rate of paying out gives the amount of.

Fraunhofer is especially known for the researches, published in the Denkschriften der Miinchener Akademie for 1814-1815, by which he laid the foundation of solar and stellar chemistry.

For stellar parallaxes see Star; the solar parallax is discussed below.

But this explanation cannot be accepted as it stands, being open to the same objection as Arago's theory of stellar scintillation.'

In determinations of stellar or solar parallax, comparison stars, symmetrically situated with respect to the object whose parallax is sought, should be employed, in which case the instantaneous scale-value may be regarded as an unknown quantity which can be derived in the process of the computation of the results.

Examples of this mode of procedure will be found, in the case of stellar parallax in the Mem.

His experiments, in the same year, on the photographic registration of stellar spectra, marked an innovation of a momentous character.

In 1868 he proved incandescent carbon-vapours to be the main source of cometary light; and on the 23rd of April in the same year applied Doppler's principle to the detection and measurement of stellar velocities in the line of sight.

Data of this kind, which are by other means inaccessible to the astronomer, are obviously indispensable to any adequate conception of the stellar system as a whole or in its parts.

In the formation of the constellations of the zodiac little regard was paid to stellar configurations.

Such were the Hindu nakshatras, a word originally signifying stars in general, but appropriated to designate certain small stellar groups marking the divisions of the lunar track.

The small stellar groups characterizing the Arab " mansions of the moon " (manazil alkamar) were more equably distributed than either the Hindu or Chinese series.

In 1886 the widow of Henry Draper, one of the pioneers of stellar spectroscopy, made a liberal provision for carrying on spectroscopic investigations at Harvard College in memory of her husband.

Edward C. Pickering carried on his study of stellar spectra with the funds of the Henry Draper Memorial at Harvard, endowed by his widow (née Mary Anna Palmer) .

The mirrors of Lindemann's equatorial coude reflecting light downwards upon the mirror R would furnish an ideal siderostat for stellar spectroscopy in conjunction with a fixed horizontal telescope.

The determination of stellar parallaxes is a matter of great difficulty on account of the minuteness of the angle to be measured, for in no case does the parallax amount to I"; moreover, there is always an added difficulty in determining an annual change of position, for seasonal instrumental changes are liable to give rise to a spurious effect which will also have an annual period.

A unit of length, which is often used in measuring stellar distances, is the light year or distance that light travels in a year; it is rather less than six billion miles.

But, whilst recognizing the existence of local drifts and systems, and admitting the possibility of relative motion between the nearer and more distant, or other classes of stars, it is;only recently that astronomers have seriously doubted the correctness of the hypothesis of random distribution of stellar motions as at least a rough representation of the truth.

But the two theories lead to a very different statistical distribution of the stellar motions.

Various considerations tend to show that this apparent crowding does not imply a really greater density or clustering of the stars in space, but is due to the fact that in these directions we look through a greater depth of stars before coming to the boundary of the stellar system.

The planet showed a stellar disk varying in magnitude from 9 to 12.

The Greek signs of the zodiac, including Libra, are obvious upon both these monuments, which have thrown useful light upon the calendar system and method of stellar grouping of the ancient Egyptians.16 Planispheres.

Their presence indicates the characteristic difference between the spark and the arc. The name is due to Sir Norman Lockyer, who has studied these lines and drawn the attention of astronomers to their importance in interpreting stellar spectra.

Raucous Stellar Jays squawked their encouragement while buzzards circling over­head seemed to keep out a careful eye for fallen bikers.

The method originally used by Huggins, who first conceived and proved the possibility of measuring stellar velocities in the line of sight, was to measure with a filar micrometer the displacement of some well-known line in a stellar spectrum relative to the corresponding line of a terrestrial spectrum.

When James Bradley and Samuel Molyneux entered this sphere of astronomical research in 1725, there consequently prevailed much uncertainty as to whether stellar parallaxes had been observed or not; and it was with the intention of definitely answering this question that these astronomers erected a large telescope at the house of the latter at Kew.

The divergences depend mainly on the different views taken by their authors as to the order of stellar evolution.

There is another method of determining stellar distances, which is applicable to a few double stars.

Although the parallaxes hitherto measured have added greatly to our general knowledge of stellar distances and absolute luminosities of stars, a collection of results derived by various observers choosing specially selected stars is not suitable for statistical discussion.

He did much to advance stellar photography and its use in cataloguing the stars, and he was responsible for the geodetic surveys of Natal and Cape Colony, British Bechuanaland, German S.-W.