1. Major features of the Milky Way and the Universe                  2. A constellation is a group of stars than appear to be together butare not. They seem…

1. Major features of the Milky Way and the Universe                  2. A constellation is a group of stars than appear to be together butare not. They seem…

1.Scientists believethat our galaxy is abarred spiral galaxy A barred spiral galaxy is a rotating, flat disk of stars, gas and dust with a bar-shaped center made of stars.2.…

1. Major features of the Milky Way and the Universe                  2. A constellation is a group of stars than appear to be together butare not. They seem…

1. Major features of the Milky Way and the Universe                  2. A constellation is a group of stars than appear to be together butare not. They seem…

1. Wonders of the Sky 2. Wonders of the Dark Sky 3. Twinkling: Star Scintillation Why do stars twinkle? Stars twinkle because their light is distorted…

1. Astronomy Topic 06 : Galaxies Stephen’s Quintet 2. Galaxies Galaxy : A group of millions or billions of stars, gas, and dust held together by gravity…

Slide 1 Announcements Observing on the roof of Van Allen Hall has started and will run Tuesday to Thursday from 9-11 pm this week. The first hour exam will be on Friday,…

Slide 1 Slide 2 Stellar Temperatures Wien’s law works perfectly for objects with Planck spectra. Stars don’t quite have Planck-like spectra. UV Blue Green Red Infrared…

Slide 1 8/6/2015 Stars Characteristics Slide 2 What are the characteristics of a star? Stars differ in… Stars differ in…MassSizeTemperatureColorLuminosity *Stars can…