1. THE EARTH IS A SYSTEM 2. Earth’s Principal Systems  Atmosphere  Hydrosphere  Biosphere  Lithosphere  Magnetosphere  Cryosphere 3. Fig. 1-1, p. 5 4.…

1. Huddersfield Astronomical SocietyBeginners Astronomy Course Week 1 "Put three grains of sand in a vast cathedral, and the cathedral will be more closely packed with…

WHAT IS A GALAXY? WHAT IS A GALAXY? What does it consist? I. HISTORY Milky Way-âGalaxies kuklosâ In Greek mythology, Zeus places his son born by a mortal woman,…

WHAT IS A GALAXY? WHAT IS A GALAXY? What does it consist? I. HISTORY Milky Way-âGalaxies kuklosâ In Greek mythology, Zeus places his son born by a mortal woman,…

Andrzej Radosz Institute of Physics Wroclaw University of Technology [email protected] A (very) Short Story of the Big Bang 1. Introduction: night skyâ paradox 2. How…

 A galaxy is a group of stars, dust, and gases held together by gravity. • The Milky Way is a large spiral galaxy whose disk is about 100,000 light-years wide and about…

Large planetary system consisting of a combination of many smaller planetary systems and objects Constellation of Capricorn Photographed by the Hubble Space Telescope --…

25.3 The Universe Do Now Put the following in order from largest to smallest Galaxy Earth’s Moon Sun Universe Planet (Earth) Solar system What is the name of our Galaxy?…

NGC4603 Cepheids in NGC4603 Planetary Nebula Luminosity Function Number Milky Way novae Planetaries vs. Cepheids Tip of Red Giant Branch (TRGB) vs. Cepheids SBF vs. Cepheids…

Chapter 25 Beyond Our Solar System 25.3 The Universe  A galaxy is a group of stars, dust, and gases held together by gravity. • The Milky Way is a large spiral galaxy…