Star Clusters

Yet another standard!

Though, actually, Hubble used Globular Clusters as a standard to help prove that Andromeda was a

Galaxy far far away

Star Clusters

• Smaller than Galaxies!!! Found in galaxies!• Globular Clusters – a group of stars:

– Like a globe – 100,000 to Millions of Stars– Orbit the galaxy, forming a Halo

• Open Clusters – a group of stars:

– No specific shape – tens of stars to thousands of stars

– Can be found anywhere in the galaxy – formed in the same location

Globular cluster

M22

Omega Centauri

Open

Cluster

M7

NGC 3293

Makali’iPleiadesSubaruMata ali’i

Another Pleiades

DisclaimerAloha

I put together these power points for use in my science classes.You may use them in your classes.

Some images are public domain, some are used under the fair-use provisions of the copyright law, some are mine. Copyright is retained by the owners!

Ted Brattstrom