- Components of the Milky Way Galaxy
A spiral galaxy like the Milky Way has 3 basic components to its visible matter: (1) the disk (containing the spiral arms), (2) the halo, and (3) the nucleus or central bulge. These components are indicated schematically.
http://csep10.phys.utk.edu/astr162/lect/milkyway/components.html
(Added: Sat Oct 26 2002)
- Galaxies: The Milky Way
This site provides a collection of images and information about our galaxy. The site is part of the popular "Astronomy Picture of the Day" series.
http://antwrp.gsfc.nasa.gov/apod/lib/milky_way.html
(Added: Fri Oct 25 2002)
- MAP Cosmology 101 - The Milky Way
This page contains some basic information about the Milky Way Galaxy and the "MAP" mission. MAP is a NASA Explorer mission that will measure the temperature of the cosmic background radiation over the full sky with unprecedented accuracy.
http://map.gsfc.nasa.gov/m_uni/uni_101mw.html
(Added: Sun Oct 06 2002)
- Nebulae in the Milky Way
This site describes diffuse nebulae, planetary nebulae and supernova remnants. It also contains links to hundreds of images.
http://www.seds.org/messier/nebula.html
(Added: Tue Oct 29 2002)
- Orbit of the Sun in the Milky Way
Our whole solar system - orbits around the center of the Milky Way Galaxy. We are moving at an average velocity of 828,000 km/hr. But even at that high rate, it still takes us about 230 million years to make one complete orbit around the Milky Way.
http://starchild.gsfc.nasa.gov/docs/StarChild/shadow/questions/question18.html
(Added: Sat Oct 26 2002)
- Our Own Galaxy: The Milky Way
This site outlines the three main components of our fairly large spiral galaxy: a disk, in which the solar system resides, a central bulge at the core, and an all encompassing halo.
http://www.damtp.cam.ac.uk/user/gr/public/gal_milky.html
(Added: Fri Oct 25 2002)
- Population I and II Stars
The globular clusters of the Galactic halo and the galactic clusters of the disk represent two distinct populations of stars. Each population has a distinct history.
http://pegasus.phast.umass.edu/a100/handouts/populat/populat.html
(Added: Sat Oct 26 2002)
- Rotation Curve of the Milky Way Galaxy
The observed rotation curve can be decomposed into the individual parts contributed by each component of the Galaxy: the disk, bulge + stellar halo, and the rest of total mass is what is called dark matter---material that does not emit any light (at least it is too faint to be detected yet) but has a significant amount of gravitational influence.
http://www.astronomynotes.com/ismnotes/s7.htm
(Added: Sat Oct 26 2002)
- Star Clusters in the Milky Way
Globular clusters are gravitationally bound concentrations of approximately ten thousand to one million stars. They populate the halo or bulge of the Milky Way and other galaxies with a significant concentration toward the Galactic Center. Open (or galactic) clusters are physically related groups of stars held together by mutual gravitational attraction. They are believed to originate from large cosmic gas/dust clouds in the Milky Way, and to continue to orbit the galaxy through the disk.
http://www.seds.org/messier/cluster.html
(Added: Sat Oct 26 2002)
- Stellar Populations
Stars are generally classed into two main groups called Population I and Population II. The stars of the two populations are very similar. They all burn elements through fusion in the same way and follow the same evolution sequence. However, there are important differences in their characteristics which distinguish the two groups; one of the main differences lies in the metal content of the stars in each group.
http://www.astro.umd.edu/education/astro/mw/pop.html
(Added: Tue Oct 29 2002)
- Structure of the Milky Way
This is a tutorial on the shape of the Milky Way.
http://casswww.ucsd.edu/public/tutorial/MW.html
(Added: Fri Oct 25 2002)
- The Interstellar Medium
The region between the stars in a galaxy like the Milky Way is far from empty. These regions have very low densities (they constitute a vacuum far better than can be produced artificially on the surface of the Earth), but are filled with gas, dust, magnetic fields, and charged particles. This is commonly termed the interstellar medium.
http://csep10.phys.utk.edu/astr162/lect/milkyway/ism.html
(Added: Tue Oct 29 2002)
- The Milky Way - A Galaxy We Call Home
Astronomer Frank Summers takes kids on a visual tour of the Milky Way and some of the other galaxies in the universe.
http://school.discovery.com/schooladventures/universe/galaxytour/milkyway.html
(Added: Sun Oct 06 2002)
- The Milky Way - our Galaxy
This site describes the theory behind the origin and structure of the Milky Way Galaxy.
http://www.star.le.ac.uk/edu/mway/
(Added: Fri Oct 25 2002)
- The Milky Way Galaxy - SEDS
Extensive web-based material provided by the Students for the Exploration and Development of Space (SEDS).
http://seds.lpl.arizona.edu/messier/more/mw.html
(Added: Sun Oct 06 2002)
- The Milky Way Galaxy - Zoom Astronomy
Our solar system is located in the outer reaches of the Milky Way Galaxy, which is a spiral galaxy. The Milky Way Galaxy contains roughly 200 billion stars. Most of these stars are not visible from Earth. Almost everything that we can see in the sky belongs to the Milky Way Galaxy.
http://www.enchantedlearning.com/subjects/astronomy/solarsystem/where.shtml
(Added: Fri Oct 25 2002)
- The Milky Way's Black Hole
An international team of astronomers [2], lead by researchers at the Max-Planck Institute for Extraterrestrial Physics (MPE), has directly observed an otherwise normal star orbiting the supermassive black hole at the center of the Milky Way Galaxy.
http://www.eso.org/outreach/press-rel/pr-2002/pr-17-02.html
(Added: Sat Oct 26 2002)
- The Milky Way: A Tourist's Guide
An entertaining tour of our galaxy provided by Space.com.
http://www.space.com/news/milky_way_000104.html
(Added: Fri Oct 25 2002)
- Virtual Reality Milky Way Panorama
Check out this Virtual Reality Milky Way Panorama
by Dr.Axel Mellinger.
Click and move the mouse to pan and tilt. While panning, use control and shift keys to zoom in and out.
http://www.astronomical.org/constellations/consmap.htm
(Added: Wed Oct 23 2002)
- Virtual Universe: Milky Way Galaxy
This computer model was Monte Carlo sampled to produce these VRML models of the Milky Way Galaxy, which are available with 40,000 and 4,000 stars with the appropriate distribution of 15 spectral types.
http://iuniverse.gsfc.nasa.gov/iuniverse/galaxy/
(Added: Fri Oct 25 2002)
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