Astrophysical Journal 502 2 : 141—149 | University of Birmingham Astrophysics and Space Research Group |
---|---|
"A Chronology of the Hubble Space Telescope" | "Compositions of halo clusters and the formation of the galactic halo" |
Publications of the Astronomical Society of the Pacific 112 772 : 747—750.
"An optical and radio survey of the nuclei of bright galaxies — Activity in normal galactic nuclei" | "Advanced Technology Large-Aperture Space Telescope ATLAST : A Technology Roadmap For The Next Decade", 2009, M |
---|---|
Astrophysical Journal 435 1 : 22—36 | "Scientific Impact of Large Telescopes" |
US National Academy of Sciences.
11It is about 25,000 light-years from the center of the galaxy, and it revolves around the galactic center once about every 250 million years | , the Milky Way Via Lactea ] [is] a vast ring of stars … " On page 73, Wright called the Milky Way the Vortex Magnus the great whirlpool and estimated its diameter at 8 |
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The Astrophysical Journal 540 1 : 45—56 | Gebhardt, K; Bender, R; Bower, G; Dressler, A; et al |
, , MacTutor History of Mathematics archive, University of St Andrews.
12