Section 1.3 Pages 384-391. A star is a hot, glowing ball of gas (mainly hydrogen) that gives off light energy. Very hot stars look blue, while cooler.
Chapter 21 STARS. Characteristics of Stars Groups of stars that form patterns in the sky are called constellations –Example: Ursa Major (Big Bear), Ursa.
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.
Origin of the Elements Cosmochemistry I Lecture 39.
STARS. WHAT ARE STARS? Stars are balls of hot gas. They are much larger than planets and much further from Earth. The sun is the closest star to Earth.
1 Announcements Astronomy 101A 10/05/11 TJacobsen Observatory 8:30 - 9:30 pm OPTIONAL (especially if it is not clear) TReview for exam 1 on Friday; exam.
Chandra Emission Line Diagnostics of Sco Geneviève de Messières (Swarthmore College ‘04), Carolin Cardamone ( Wellesley College ‘02), David H. Cohen.
Stars. Life cycle of star H8Jz6FU5D1A H8Jz6FU5D1A.
Twinkle, twinkle, little star, how I wonder what your Hertzsprung- Russell diagram classification….are.
Topic 5: History and Structure of the Universe Interesting Fact: When you look at the stars, you are actually looking back in time. This is because light.
1 The Universe Chapter 20. 2 The Life and Death of Stars Stars are huge spheres of hot gases that emit light and other forms of electromagnetic radiation.
PG. 127 Measuring the Stars. Groups of stars Long ago, people grouped bright stars and named them after animals, mythological characters or every day.
