Transcript Astronomy
Star Characteristics Stellar Evolution Star Groups The Big Bang Theory Potpourri 100 pt 100 pt 100 pt 100 pt 100 pt 200 pt 200 pt 200pt 200 pt 200 pt 300 pt 300 pt 300 pt 300 pt 300 pt 400 pt 400 pt 400 pt 400 pt 400 pt 500 pt 500 pt 500 pt 500 pt 500 pt The color of the hottest stars White The relative size of the sun Medium The speed of 300,000 km/s A light-year The apparent shift in a star’s position when viewed from different locations Parallax Stars that are always visible in the night sky Circumpolar stars Places of gas and dust where stars are born Nebulae Small, dense stars that form as a result of supernovas Neutron Stars The graph that illustrates the pattern of star’s surface temperatures, against their luminosity Hertzsprung-Russell Diagram Neutron stars that emit a beam of radio waves that sweep across space Pulsars The percentage of helium a nebula is commonly consisted of 28% The type of galaxy our galaxy is Spiral galaxy A quasi-stellar radio source Quasar A large-scale group of stars, gas, and dust that is bound together by gravity A galaxy Groups of stars that have a spherical shape and can contain up to 100,000 stars Globular clusters Giant stars that brighten and fade in a regular pattern Cepheid variables The study of the origin, structure, and future of the universe Cosmology The type of matter that makes up 23% of the universe and does not give off light Dark matter The time passed since the event called the big bang 14 billion years Radiation considered a remnant of the big bang Cosmic background radiation Inflation began to occur this long after the big bang -35 10 seconds A seemingly fixed pattern of stars that can be viewed in the night sky A constellation The type of sun Betelgeuse is Red supergiant According to current theories, this object is most likely to be found at the core of the Milky Way Galaxy A black hole Something that is achieved when the inward force of gravity is balanced by the outward pressure from fusion and radiation inside a star Stellar equilibrium The temperature a protostar increases to 10,000,000°celsius