Milky Way Galaxy REVIEW

A collection of stars, dust, and gas bound together by gravity

• Galaxy
• Galactic disk
• spiral arm
• dark halo

Tags

NGSS.MS-ESS1-2

Flattened region of gas and dust that bisects the galactic halo in a spiral galaxy; region of active star formation.

• Spiral galaxy
• Galactic disk
• spiral arm
• variable star

Thick distribution of warm gas and stars around the galactic center

• Galaxy
• Galactic bulge
• spiral arm
• dark halo

Region of a galaxy extending far above and below the galactic disk, where globular clusters and other old stars reside

• Dark halo
• Galactic halo
• dark matter
• variable star

Galaxy composed of a flattened, star-forming disk component which may have spiral arms and a large central galactic bulge

• Variable stars
• Galactic center
• Spiral galaxy
• Rotation curve

A star whose luminosity changes with time

• pulsating variable stars
• dark matter
• self-propagating star
• variable star

A star whose luminosity varies in a predictable, periodic way

• pulsating variable stars
• dark matter
• self-propagating star
• variable star

The center of the Milky Way, or any other galaxy.

• Variable stars
• Galactic center
• Spiral galaxy
• Rotation curve

Distribution of material in a galaxy forming a pinwheel-shaped design, beginning near the galactic center

• Spiral galaxy
• Galactic disk
• spiral arm
• variable star

Plot of the orbital speed of disk material in a galaxy against its distance from the galactic center.

• Variable stars
• Galactic center
• Spiral galaxy
• Rotation curve