protoplanetary nebulas造句

例句与造句

1. "' IRAS 19475 + 3119 "'is a protoplanetary nebula in the constellation of AGB star.
2. "' IRAS 23304 + 6147 "'is a protoplanetary nebula in the constellation Cassiopeia, 16, 000 light years away.
3. The central star of the protoplanetary nebula has been found to be variable with a small range from visual magnitude + 12.99 to + 13.15.
4. This discrepancy arises because its distance is too great to be measured by parallax and it has some properties of both a yellow hypergiant and a protoplanetary nebula / Post-AGB star.
5. The name "'protoplanetary nebula "'is an unfortunate choice due to the possibility of confusion with the same term being sometimes employed when discussing the unrelated concept of protoplanetary disks.
6. It's difficult to find protoplanetary nebulas in a sentence. 用protoplanetary nebulas造句挺难的
7. During the ensuing protoplanetary nebula phase, the central star's effective temperature will continue rising as a result of the envelope's mass loss as a consequence of the hydrogen shell's burning.
8. The objects of the inner Solar System are composed mostly of rock, the collective name for compounds with high melting points, such as silicates, iron or nickel, that remained solid under almost all conditions in the protoplanetary nebula.
9. :Talk : Protoplanetary nebula actually says it was January 11th 2007 . " . . . that a "'protoplanetary nebula "'is a short-lived phase of stellar evolution ? " was added here and removed here.
10. :Talk : Protoplanetary nebula actually says it was January 11th 2007 . " . . . that a "'protoplanetary nebula "'is a short-lived phase of stellar evolution ? " was added here and removed here.
11. Systems that can be strongly influenced by the dynamics of preferential concentration are aerosol production of fine powders, spray, emulsifier, and crystallization reactors, pneumatic devices, cloud droplet formation, aerosol transport in the upper atmosphere, and even planet formation from protoplanetary nebula.
12. The name "'protoplanetary nebula "'is a consequence of the older term "'planetary nebula "', which was chosen due to early astronomers looking through telescopes and finding a similarity in appearance of planetary nebula to the gas giants such as Neptune and Uranus.
13. A "'protoplanetary nebula "'or "'preplanetary nebula "'( PPN ) is an astronomical object which is at the short-lived episode during a star's rapid evolution between the late asymptotic giant branch ( LAGB ) phase and the subsequent planetary nebula ( PN ) phase.