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A typical large galaxy like the Milky Way contains hundreds of billions of stars. There are more than 2 trillion (10 12) galaxies, though most are less than 10% the mass of the Milky Way. [107] Overall, there are likely to be between 10 22 and 10 24 stars [108] [109] (more stars than all the grains of sand on planet Earth).
The following is a list of particularly notable actual or hypothetical stars that have their own articles in Wikipedia, but are not included in the lists above. BPM 37093 — a diamond star Cygnus X-1 — X-ray source
The final fate of the star depends on its mass, with stars of mass greater than about eight times the Sun becoming core collapse supernovae; [101] while smaller stars blow off their outer layers and leave behind the inert core in the form of a white dwarf. The ejection of the outer layers forms a planetary nebula. [102]
BSc meteorologist Janice Davila tells Bored Panda that one of the most unknown facts from her field of expertise is that weather radars are slightly tilted upward in a half-degree (1/2°) angle.
And the Instagram page ‘Unbelievable Facts’ is one of the best places to do just that. Every day, they share fascinating trivia, building a collection that now includes over 10,000 unique facts.
These starfish have between 6 and 16 long, attenuated arms which they use for suspension feeding. [3] Other characteristics include a single series of marginals, a fused ring of disc plates, the lack of actinal plates, a spool-like ambulacral column, reduced abactinal plates, and crossed pedicellariae. [4]
Many restaurant owners think of getting a Michelin star as a major achievement. But, apparently, it can be more of a curse, as 40% of Michelin-awarded restaurants closed by the end of 2019.
One particularly interesting variable in Aries is SX Arietis, a rotating variable star considered to be the prototype of its class, helium variable stars. SX Arietis stars have very prominent emission lines of Helium I and Silicon III. They are normally main-sequence B0p—B9p stars, and their variations are not usually visible to the naked eye.