例句與造句

1. It is also the first pulsating white dwarf to have its main pulsation mode index identified.
2. The star is a pulsating white dwarf of type DAV, with an extremely stable period.
3. G 117-B15A, also known as RY Leonis Minoris, is a pulsating white dwarf of apparent magnitude 15.5.
4. TY Coronae Borealis is a pulsating white dwarf ( of ZZ Ceti ) type, which is around 70 % as massive as the Sun, yet has only 1.1 % of its diameter.
5. "' GD 66 "'or "'V361 Aurigae "'is a 0.64 solar mass ( ) pulsating white dwarf star located 170 light years from Earth in the Auriga constellation.
6. It's difficult to find pulsating white dwarfs in a sentence. 用pulsating white dwarfs造句挺難的
7. In addition to being used to study GRBs, PROMPT and the other Skynet telescopes, often in campaigns with other optical and radio telescopes around the world, and also with space telescopes, are being used to study blazars, supernovae ( SNe ), novae, pulsating white dwarfs, a wide variety of variable stars, eclipsing binaries, exoplanetary systems, trans-Neptunian objects and Centaurs, asteroids, and near-Earth objects ( NEOs ).
8. Known types of pulsating white dwarf ( or pre-white dwarf ) include the " DAV ", or " ZZ Ceti ", stars, with hydrogen-dominated atmospheres and the spectral type DA; " DBV ", or " V777 Her ", stars, with helium-dominated atmospheres and the spectral type DB; and " GW Vir " stars, with atmospheres dominated by helium, carbon, and oxygen.
9. A "'pulsating white dwarf "'is a white dwarf star whose luminosity PG 1159 . ( Some authors also include non-PG 1159 stars in the class of GW Vir stars . ) GW Vir stars may be subdivided into "'DOV "'and "'PNNV "'stars; they are not, strictly speaking, white dwarfs but " pre-white dwarfs " which have not yet reached the white dwarf region on the Hertzsprung-Russell diagram . and in May 2012, the first extremely low mass variable ( "'ELMV "') white dwarf was reported.