Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Stars
HR diagram, Stars, ES spectrum, Waves
| Question | Answer |
|---|---|
| prominence | huge |
| flare | violent eruptions which shoot straight out |
| sunspots | darker areas on the surface of the Sun which are cooler and cause other solar disruptions |
| horizon | line where the sky and Earth meet |
| constellation | a group of stars forming a recognizable pattern |
| main sequence | majority of stars in the sky |
| Hertzsprung-Russell diagram | graph showing the luminosity versus the temperature of stars |
| apparent magnitude | brightness of a star as seen from Earth |
| low mass star | are the smallest |
| high mass star | hydrogen is fusing with helium but that it happens much faster |
| circumpolar | constellations appear to rotate around the star Polaris |
| luminoisity | brightness of a celestial body |
| wave | A disturbance that transfers energy from place to place |
| wavelength | Horizontal distance between the crests or between the troughs of two adjacent waves |
| Amplitude | the height of a wave's crest |
| Frequency | the number of complete wavelengths that pass a point in a given time |
| Hertz (Hz) | Unit of measurement for frequency |
| Trough | Lowest point of a wave |
| Crest | Highest point of a wave |
| Microwave | waves used to heat food |
| infrared waves | Waves that are longer than visible light waves |
| visible light | Electromagnetic radiation that can be seen with the unaided eye |
| Ultraviolet light | part of the electromagnetic spectrum that consists of waves with frequencies higher than those of visible light and lower than those of x-rays |
| X-rays | Electromagnetic waves with wavelengths just shorter than those of ultraviolet rays |
| gamma rays | Electromagnetic waves with the shortest wavelengths and highest frequencies |
| radio waves | Electromagnetic waves with the longest wavelengths and lowest frequencies |
| constellation | A group of stars that form a pattern in the sky |
| circumpolar | constellations that are visible all night |
| Polaris | the current star to which the North Celestial Pole of Earth points; also called the "North Star". |
| absolute magnitude | the brightness that a star would have at a distance of 32.6 light-years from Earth |
| Parallax | An apparent shift in the position of an object when viewed from different locations |
| Spectrascope | The instrument used to see the individual light frequencies emitted |
| spectrum | colored band produced when a beam of light passes through a prism |
| asterism | a prominent pattern or group of stars |
| Photosphere | the visible surface of the sun |
| Chromosphere | The middle layer of the sun's atmosphere |
| Corona | the outermost layer of the sun's atmosphere |
| Sunspot | A dark area of gas on the sun's surface that is cooler than surrounding gases. |
| prominence | A loop of gas that protrudes from the sun's surface |
| solar flare | A sudden eruption of intense high-energy radiation from the sun's surface |
| Coronal Mass Ejection (CME) | Coronal gas that is ejected into space from sun |
Created by:
user-2004312
Popular Earth Science sets