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Astronomy & Space
This would help people know the deffinons of our universe
| Question | Answer |
|---|---|
| space and everything in it | universe |
| a huge group of single stars, solar systems, star clusters, dust and gas bound together by gravity. | Galaxy |
| how scientist think the universe was formed in an instance billions of years ago in an huge explosion | big bang theory |
| a law that states that the farther away a galaxy is, the faster it is moving away from us. | Hubble's law |
| a matter that does not give off electromagnet radiation | dark matter |
| causing the expansion of the universe to accelerate | dark energy |
| the left over thermal energy from the big bang | cosmic background radiation |
| a star system that has 2 or more stars | binary star |
| a system in witch one dim star blocks the light from another periodically | eclipsing binary |
| a cluster that is lose,disorganized,has a few thousand stars that has mostly super giants and a lot of dust and gas | open cluster |
| a cluster that has large grouping of older stars it is round and compact | globular cluster |
| clouds of dust and gas | planetary nebula |
| what phase does nuclear fusion begins | protstar |
| what is the longest part of a star life | main sequence |
| what does the H-R in the H-R diagram mean | hertzsprung- russell |
| what letters classifies the colors of the stars on a spectograph | O,B,A,F,G,K,M |
| what is the color of the hottest star | blue |
| what color is the coldest star | red |
| what is the life cycle of a low mass star | planetary nebula prostar main sequence Red giant collapse white dwarf/ black dwarf |
| what is the life cycle of a high mass star | planetary nebula prostar main sequence red super giant collapse supernova black hole /neturn star/ pulstar |
| an internment that breaks light into colors and produces of the resulting star | spectograph |
| the distance light travels in one year about 9.46 trillion kilometers | light-year |
| the apparent change in position when you look from different places | parallax |
| radio waves from objects in space | radio telescope |
| a building that contains one or more telescopes | observatory |
| a curved mirror to collect and focus light | reflecting telescope |
| a piece of glass that is curved so the medal is thicker than the edge | context lens |
| use context lens to gather and focus light | refracting telescope |
| telescope that uses lenses or mirrors to collect and focus visible light | optical telescope |
| an interments that collect and focus light and other forms of electromagnet | telescope |
| the distance between the crest of one wave and the crest of the next wave | wavelength |
| the light you can see | visible light |
| energy that can travel through space in the forms of waves | electromagnet |
| an object whose gravity is so strong that nothing, not even light can escape | black hole |
| the brightness see from earth | apparent brightness |
| the brightness the star would have if it was at a standard distance from earth | absolute brightness |
| the length of a path between two points | distance |
| the ability to do work or cause change | energy |
| disturbance that transfers energy from place to place | wave |
| a cloud of dust and gas composed primarily of hydrogen and helium | nebula |
| what is the bottom line on a H-R diagram | x-axis |
| what is the left line on the H-R diagram | y-axis |
Created by:
blackmongirl13
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