Some amateur astronomers use home-made radio telescopes, while others use radio telescopes that were originally built for astronomy research but have since been made available for use by amateurs.

Some astronomers endeavoured to explain this by parallax, but these attempts were futile, for the motion was at variance with that which parallax would produce.

Some astronomers had suggested that the impacts might have a noticeable effect on the Io torus, a torus of high-energy particles connecting Jupiter with the highly volcanic moon Io.

Some notable observed features of galaxy structure ( including our own Milky Way ) that astronomers wish to explain with galactic formation theories include ( but are certainly not limited to ) the following:

Some astronomers prefer to refer to Sedna and 2000 CR < sub > 105 </ sub > as belonging to the " extended scattered disc " rather than to the inner Oort cloud.

Some astronomers believe the two types of star clusters form via the same basic mechanism, with the difference being that the conditions that allowed the formation of the very rich globular clusters containing hundreds of thousands of stars no longer prevail in the Milky Way.

Some astronomers expressed scepticism at the result.

Some astronomers explain this by presence of small temperature fluctuations within planetary nebulae ; others claim that the discrepancies are too large to be explained by temperature effects, and hypothesize the existence of cold knots containing very little hydrogen to explain the observations.

Some Greek astronomers considered them to be a distinct constellation, and they are mentioned by Hesiod, and in Homer's Iliad and Odyssey.

Some Greek astronomers ( e. g., Aristarchus of Samos ) speculated that the planets ( Earth included ) orbited the Sun, but the optics ( and the specific mathematics – Newton's Law of Gravitation for example ) necessary to provide data that would convincingly support the heliocentric model did not exist in Ptolemy's time and would not come around for over fifteen hundred years after his death.

Some of the other astronomers involved in the project include Wei-Chun Jao, John Subasavage and Thom Beaulieu of Georgia State University, Phil Ianna of the University of Virginia in Charlottesville, Hartmut Jahreiß of the Astronomisches Rechen-Institut in Heidelberg, Germany and Edgardo Costa and Rene Mendez of the Universidad de Chile.

Some astronomers use the term QSO ( Quasi-Stellar Object ) for this class of AGN, reserving ' quasar ' for radio-loud objects, while others talk about radio-quiet and radio-loud quasars.

Some astronomers put this down to the presence of small temperature fluctuations within H II regions ; others claim that the discrepancies are too large to be explained by temperature effects, and hypothesise the existence of cold knots containing very little hydrogen to explain the observations.

Some astronomers have estimated that there may be twice as many Jupiter-sized rogue planets as there are stars.

Some astronomers therefore suspect that it was once a comet.

Some of these extrasolar planets are large and resemble Yavin, although astronomers cannot yet tell whether any Earth type planetary moons exist around such extrasolar planets.

Some astronomers believe that ring galaxies are formed when a smaller galaxy passes through the center of a larger galaxy.

Some amateur astronomers use their telescopes the same way, but direct optical viewing with eyepieces is still very common.

Some astronomers, however, prefer to specify the resulting magnification power rather than the focal length.

Some astronomers now agree that Dr. Stuart may indeed have photographed an asteroid impact on the Moon.

Some elements of Indian astronomy reached China with the expansion of Buddhism after the Eastern Han Dynasty ( 25 – 220 AD ), but the most detailed incorporation of Indian astronomical thought occurred during the Tang Dynasty ( 618-907 ), when numerous Indian astronomers took up residence in the Chinese capital, and Chinese scholars, such as the great Tantric Buddhist monk and mathematician Yi Xing, mastered its system.

Some astronomers have argued that Thule's present orbit is the natural result of the force of Jupiter on a body orbiting at precisely the distance from the Sun Thule does, in the same way ( though with the reverse effect ) as the Kirkwood gaps in the more inner parts of the asteroid belt.

Some astronomers suggested that perhaps they were all one comet, whose orbital period was somehow being drastically shortened at each perihelion passage, perhaps by retardation by some dense material surrounding the Sun.

Some sidewalk " pitch men " charged the public to view astronomical objects through their telescope but other astronomers allow people to view for free.

Some months later, FitzGerald published his conjecture in Science to explain the baffling outcome of the 1887 ether-wind experiment of Michelson and Morley.

Some analyses using the semiclassical approach to incorporating quantum effects into general relativity indicate that a feedback loop of virtual particles would circulate through the wormhole with ever-increasing intensity, destroying it before any information could be passed through it, in keeping with the chronology protection conjecture.

Some sentences of the 5th chapter were cited by Edgar Allan Poe at the beginning of The Murders in the Rue Morgue: " What Song the Syrens sang, or what name Achilles assumed when he hid himself among women, though puzzling Questions are not beyond all conjecture.

Some believe that, had Spee pressed the attack, Sturdee's ships would have been easy targets, although this is a subject of conjecture and some controversy.

Some well-known difficult abstract problems that have been solved relatively recently are the four-colour theorem, Fermat's Last Theorem, and the Poincaré conjecture.

Some physicists speculate that the CTCs which appear in certain GR solutions might be ruled out by a future theory of quantum gravity which would replace GR, an idea which Stephen Hawking has labeled the chronology protection conjecture.

Some support for this conjecture comes from the fact that in certain dimensions ( e. g. 10 ) the densest known irregular packing is denser than the densest known regular packing.

Some conjecture that the analysts may simply have had trouble accepting their own results or may have written the conclusions to satisfy the new political climate within Blue Book following the Robertson Panel.

Some conjecture that his 171 sacks in Buffalo set a standard that " may be unreachable " for future Bills.

Some results toward proving the Kakeya conjecture are the following:

Some modern costumers conjecture that the French farthingale and the " great farthingale " refer to one and the same garment, the difference in shape and construction being due to changes in fashion from the 1580s to the 1590s.

Some conjecture that African lamellophones were derived from xylophones and marimbas.

Some are of the opinion that Gergasa was the country of the ancient Girgashites ; but it is more probable that ' Gergesenes ' was introduced by Origen upon mere conjecture ; as before him most copies seem to have read ' Gadarenes ', agreeable to the Parallel Passages and the ancient Syriac version.

Some conjecture that this defeat led to his subsequent retirement having been demoralized by this incident.

Some of his major contributions included his work on quadratic forms, the Erdős – Ko – Rado theorem and his breakthrough on Catalan's conjecture.

Some set theorists conjecture that existence of a strongly compact cardinal is equiconsistent with that of a supercompact cardinal.

Some painters have less interest in the experience of the moment, with its attendant urgencies and ambiguities, than in looking beyond the flux of particular impressions to a higher, more serene level of truth.

" Critics believed that An American in Paris was better crafted than his lukewarm Concerto in F. Some did not think it belonged in a program with classical composers César Franck, Richard Wagner, or Guillaume Lekeu on its premiere.

Some jurisdictions have specialized appellate courts, such as the Texas Court of Criminal Appeals, which only hears appeals raised in criminal cases, and the United States Court of Appeals for the Federal Circuit, which has general jurisdiction but derives most of its caseload from patent cases, on the other hand, and appeals from the Court of Federal Claims on the other.

Some jurisdictions hold this as an absolute right, and in its absence, a sentence may potentially be overturned, with the result that a new sentencing hearing must be held.

Some sources state that At < sub > 2 </ sub > does not exist, or at least has never been observed, while other sources assert or imply its existence.

Some 98 % of Antarctica is covered by the Antarctic ice sheet, the world's largest ice sheet and also its largest reservoir of fresh water.

Some religious groups, such as the Association of Christian Schools International, opposed the ADA in its original form.

Some early scientists such as Georg Ernst Stahl ( 1659-1734 ) and Francisque Bouillier ( 1813 – 1899 ) had supported a form of animism which life and mind, the directive principle in evolution and growth, holding that all cannot be traced back to chemical and mechanical processes, but that there is a directive force which guides energy without altering its amount.

Some jurisdictions allow force to be used in defense of property, to prevent damage either in its own right, or under one or both of the preceding classes of defense in that a threat or attempt to damage property might be considered a crime ( in English law, under s5 Criminal Damage Act 1971 it may be argued that the defendant has a lawful excuse to damaging property during the defense and a defense under s3 Criminal Law Act 1967 ) subject to the need to deter vigilantes and excessive self-help.

Some of the earliest historiographic texts ( ABC 19, 20 ) suggest he rebuilt the city of Babylon ( Bab-ilu ) in its new location near Akkad.

Some mainframes designed in the 1960s, such as the Burroughs B5000 and its successors, had special instructions for array indexing that included index-bounds checking ..

Some have understood Ammianus's testimony as a claim that at the time of Atlantis's actual sinking into the sea, its inhabitants fled to western Europe ; but Ammianus in fact says that “ the Drasidae ( Druids ) recall that a part of the population is indigenous but others also migrated in from islands and lands beyond the Rhine " ( Res Gestae 15. 9 ), an indication that the immigrants came to Gaul from the north ( Britain, the Netherlands or Germany ), not from a theorized location in the Atlantic Ocean to the south-west.

Some Buddhists have argued on this basis that the act of killing is complicated, and its ethicization is predicated upon intent.

Some double-decker bridges only use one level for street traffic ; the Washington Avenue Bridge in Minneapolis reserves its lower level for automobile traffic and its upper level for pedestrian and bicycle traffic ( predominantly students at the University of Minnesota ).

Some philosophers deny that the concept of " being " has any meaning at all, since we only define an object's existence by its relation to other objects, and actions it undertakes.

Some scholars have claimed that the vow formula of the Rule is best translated as " to live in this place as a monk, in obedience to its rule and abbot.

Some important Roman ruins are exposed under the Plaça del Rei, its entrance located by the city museum ( Museu d ' Història de la Ciutat ); the typically Roman grid plan is still visible today in the layout of the historical centre, the Barri Gòtic (" Gothic Quarter ").

Some historians were prepared to go even further, claiming that blitzkrieg was not merely an operational doctrine of the German armed forces but a strategic concept on which the leadership of the Third Reich based its strategic and economic planning.

Some of its powers may, according to its articles, be exercised by directors, certain other powers may be reserved for the shareholders in general meeting.

Some 640 structures burned before a late afternoon sea breeze stopped its progress, allowing firefighters to put it out.

Some artists have also been linked to neo-Nazism, although most black metal fans and most prominent black metal artists shun Nazism and oppose its influence on the black metal subculture.

Some authors deviate from the definition just given by identifying each object with its identity morphism.

Some sets are infinite ; these sets have more than n elements for any integer n. For example, the set of natural numbers, denotable by, has infinitely many elements, and we cannot use any normal number to give its size.