The Milky WayA swirling spiral of 100 billion star-suns, star clusters, nebulae, and cosmic dust, the Milky Way is our Home Galaxy; yet research during the past ten years have overturned assumptions about even its most fundamental characteristics. |
Contents
Pulsating Stars and Globular | 8 |
The Milky Way Telescopic Views Photographic | 20 |
Terms and Concepts Telescopes and Auxiliary | 27 |
Copyright | |
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21-centimeter absolute magnitude absorption lines apparent magnitude associated astronomers average Baade band bright brighter brightest stars central plane cepheids clouds clus color cosmic dust cosmic rays dark nebulae diagram direction distance distant stars dwarfs effects emission nebulae faint stars filter galactic center galactic longitude galactic plane galactic rotation gas and dust globular clusters globules H II regions H-alpha Hyades infrared interstellar absorption interstellar gas ionized kilometers per second light luminosity main sequence mass measure Messier 31 micron Milky Milky Way system nebulosity neutral atomic hydrogen nucleus number of stars Observatory observed open clusters optical orbit Orion parallax parsecs particles photoelectric photograph polarization Population produced proper motions protostars radial velocities reddening reflector RR Lyrae variables Sagittarius second of arc shown solar southern spectral class spectral types spectrum spiral arms spiral features spiral structure stellar studies Sun's supergiant supernova tion tudes ultraviolet visual wavelength