Today we’re talking about our galactic neighborhood: The Milky Way. It’s a disk galaxy, a collection of dust, gas, and hundreds of billions of stars, with the Sun located about halfway out from the center. The disk has grand spiral patterns, formed by the traffic jams of stars and nebulae, where stars are born. The central region is shaped like a bar and is mostly old, red stars. There’s also a halo surrounding us of old stars.

Check out the Crash Course Astronomy solar system poster here: [ Ссылка ]

--

Chapters:
Introduction: The Milky Way 00:00
What is the Milky Way Galaxy? 1:15
The Milky Way's Shape 2:18
Spiral Arms of the Milky Way 4:08
Mapping the Milky Way 7:15
Outer Halo of the Milky Way 9:09
Review 10:07
--

PBS Digital Studios: [ Ссылка ]

Follow Phil on Twitter: [ Ссылка ]

Want to find Crash Course elsewhere on the internet?
Facebook - [ Ссылка ]
Twitter - [ Ссылка ]
Tumblr - [ Ссылка ]
Support CrashCourse on Patreon: [ Ссылка ]

--

PHOTOS/VIDEOS
Milky Way, Artist’s Drawing [ Ссылка ] [credit: NASA/JPL-Caltech]
Joshua Tree [ Ссылка ] [credit: Rogelio Bernal Andreo]
Milky Way Center Region Mosaic [ Ссылка ] [credit: ESO]
New Hubble image of star cluster Messier 15 [ Ссылка ] [credit: NASA, ESA]
Artist’s impression of the Milky Way [ Ссылка ] [credit: ESA/Hubble and M. Kornmesser]
M83 (Hubble Only and Hubble-Subaru-ESO Composite) [ Ссылка ] [credit: Robert Gendler, 8.2 Meter Subaru Telescope (NAOJ), European Southern Observatories, Hubble Legacy Archive]
Hubble's Largest Galaxy Portrait Offers a New High-Definition View [ Ссылка ] [credit: NASA, ESA, K. Kuntz (JHU), F. Bresolin (University of Hawaii), J. Trauger (Jet Propulsion Lab), J. Mould (NOAO), Y.-H. Chu (University of Illinois, Urbana), and STScI]
NGC 3344 [ Ссылка ] [credit: Adam Block/Mount Lemmon SkyCenter/University of Arizona]
Annotated Milky Way [ Ссылка ] [credit: NASA/JPL-Caltech]
Black hole with corona, X-ray source (artist's concept) [ Ссылка ] [credit: NASA/JPL-Caltech]
A Galaxy and its Halo [ Ссылка ] [credit: ESA (image by C. Carreau)]
How to Become a Star [ Ссылка ] [credit: ESO]

свернуть