Astr 323 February 18, 2004: Thin Disk  

Local Group Spirals

Local Group

Bulges

M31 Halo

V Band luminosity of M31

Question: What would you have to estimate?

Small Bulges

M31 disk

Polar Plots of the sky

Disk Globular Clusters graph

Old Stellar populations in M31

Question: consider the metal rich Globular clusters

Question: Which is appropriate for the old thin disk?