AST 165 Lecture Notes - Lecture 10: Barred Spiral Galaxy, Dwarf Galaxy, Local Group

• School: CMU
• Department: Astronomy
• Course: AST 165
• Professor: LaCluyze

Document Summary

All-sky milky way panorama: 360 flattened pic of milky. Disk -> sun -> bulge -> halo -> 1000 light yrs. Takes light 0. 4 sec to get across earth. Takes light 8. 5 min to get from sun to earth. Takes light 4 hrs to get from sun to neptune. Nebula: cloud of gas and dust in space. Barred spiral galaxy: has bar shape throughout middle. Rounder (elliptical)