Ví dụ về việc sử dụng Variable stars trong Tiếng anh và bản dịch của chúng sang Tiếng việt
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She identified 1777 variable stars.
Other variable stars are V2(irregular) and V3(semiregular).
There have been 13 variable stars found in M9.
It is the prototype of the class of Gamma Cassiopeiae variable stars.
Messier 15 contains 112 w: variable stars, a rather high number.
M2 contains about 150,000 stars, including 21 known variable stars.
Only about 55 variable stars have been discovered in the central part of M55.[1].
There are at least 18,RR Lyrae type variable stars in this cluster.
Variable stars are called things like RR Lyrae(in Lyre) or TT Arietis, in order of discovery.
In doing so, he discovered 379 new variable stars and over 1000 stars of high proper motion.
The κ- mechanism(Latinised as kappa- mechanism)is the driving mechanism behind the changes in luminosity of many types of pulsating variable stars.
There are many kinds of variable stars, but the one that is most useful for measuring the Hubble constant is called a Cepheid variable. .
It was recovered twopassages later by Ernst Zinner while observing variable stars near Beta Scuti on October 23, 1913.
About 45 variable stars of the T Tauri type, young stars still in the process of formation as well as some 17 Herbig- Haro objects are known in M78.
Finally, it is worth mentioning that, in astronomy, the variable stars are those who experience significant variations in luminosity.
Cataclysmic variable stars(CV) are stars which irregularly increase in brightness by a large factor, then drop back down to a quiescent state.
It was recovered two passages later by Ernst Zinner(from Bamberg, Germany)while observing variable stars near Beta Scuti on October 23, 1913.
Cataclysmic variable stars are binary stars that consist of two components; a white dwarf primary, and a mass transferring secondary.
Edwin Hubble, in the paper N.G.C. 6822, A Remote Stellar System,[6]identified 15 variable stars(11 of which were Cepheids) of this galaxy.
This star was first catalogued by American astronomer Frank Elmore Ross in 1925,and formed part of his fourth list of new variable stars.
Nearby examples of specific phenomena, such as variable stars, can then be used to infer the behavior of more distant representatives.
Small amplitude rapid variations have been known in many early supergiant stars, but they were not formally grouped into aclass until the 4th edition of the General Catalogue of Variable Stars was published in 1985.
Plentiful in M15, RR Lyrae starsare evolved pulsating variable stars whose brightness and pulsation period, typically less than a day, are related.
Astronomers use more specialised terms which refer toactual physical differences among the'zoo' of young variable stars, such as'Classical T Tauri' or'UX Orionis' stars. .
Today similar flare stars are classified as UV Ceti type variable stars(using the abbreviation UV) in variable star catalogs such as the General Catalogue of Variable Stars.
In 1929, the German astronomer Cuno Hoffmeister published acatalog of 354 objects he thought were variable stars, or stars that get brighter and fainter over fairly short periods of time.
A 2010 study identified 245 variable stars in the cluster's field, of which 209 are RR Lyrae variables, four are Type II Cepheids, 25 are long period variables, and one is an eclipsing binary.
PZ Cas is a slow semi-regular variable star with the periodquoted as 925 days in the General Catalogue of Variable Stars,[8] although periods of 850 and 3,195 days have been derived.[2][3] The visual range is approximate magnitude 8-10, large for this type of variable.[3].
V4998 Sagittarii was observed in 2003by the General Catalog of Variable Stars(GCVS) and was designated V4889 Sagittarii,‘'V'' indicating that it was a variable star and 4889 denoting its serial number.
Two more are suspected douple stars.[9][10]Further studies revealed seven variable stars, 5 eclipsing binaries, one delta Scutivariable and one gamma Doradus variable, with the gamma Doratus variable star membership being questionable.