Search results
Results from the WOW.Com Content Network
Class S stars have excess amounts of zirconium and other elements produced by the s-process, and have more similar carbon and oxygen abundances to class M or carbon stars. Like carbon stars, nearly all known class S stars are asymptotic-giant-branch stars. The spectral type is formed by the letter S and a number between zero and ten.
The stars of GG Tauri A are closer to the ring on the northern side (where the streamer is) than the southern side. [29] Finally, although there is not much gas falling into the inner disks, the accretion rate of gas has been measured to be ~ 6 × 10 −8 M ☉ yr −1 which is at least the rate of accretion from the inner disks to the stars ...
Sigma Octantis is a solitary [9] star in the Octans constellation that forms the pole star of the Southern Hemisphere.Its name is also written as σ Octantis, abbreviated as Sigma Oct or σ Oct, and it is officially named Polaris Australis (/ p oʊ ˈ l ɛər ɪ s ɔː ˈ s t r eɪ l ɪ s /). [10]
The Philip Larkin poem "The North Ship", found in the collection of the same name, references the star in the section "Above 80° N", which reads: " 'A woman has ten claws,' Sang the drunken boatswain; Farther than Betelgeuse, More brilliant than Orion Or the planets Venus and Mars, The star flames on the ocean; 'A woman has ten claws,'
There are four stars above magnitude 3 in Taurus. The brightest member of this constellation is Aldebaran, an orange-hued, spectral class K5 III giant star. [10] Its name derives from الدبران al-dabarān, Arabic for "the follower", probably from the fact that it follows the Pleiades during the nightly motion of the celestial sphere ...
Algol variables or Algol-type binaries are a class of eclipsing binary stars that are similar to the prototype member of this class, β Persei (Beta Persei, Algol). An Algol binary is a system where both stars are near-spherical such that the timing of the start and end of the eclipses is well-defined.
One of the simplest examples of a stellar engine is the Shkadov thruster (named after Dr. Leonid Shkadov, who first proposed it), or a class-A stellar engine. [5] Such an engine is a stellar propulsion system, consisting of an enormous mirror/light sail—actually a massive type of solar statite large enough to classify as a megastructure—which would balance gravitational attraction towards ...
A hypergiant (luminosity class 0 or Ia +) is a very rare type of star that has an extremely high luminosity, mass, size and mass loss because of its extreme stellar winds.The term hypergiant is defined as luminosity class 0 (zero) in the MKK system.