Mar 24, 2014
Kriek’s presentation will give a broad view of galaxies as the building blocks of the Universe; massive structures that contain up to 100s of billions of stars. Galaxies in today's Universe show a striking diversity among their properties, with large variations in their appearance, age, size, weight, and stellar birth rate. Despite this diversity, galaxies can broadly be divided into two types: low-mass spiral galaxies with high stellar production rates, and massive old elliptical galaxies in which no new stars are being formed. This broad distinction was already recognized by Edwin Hubble in the 1920s, yet it has remained puzzling as to how the different galaxy classes originated and how they may be related to each other. Kriek’s talk will cover this issue and present the current view of how the different types of galaxies may have formed and have evolved over cosmic time.
Welcome to the San Francisco Amateur Astronomers! We are here to help you get the most out of amateur astronomy. You’ll find our club has something fun and interesting for you to do whether you are a beginner or an experienced amateur. Our members are all Bay Area enthusiasts who love the varied aspects of our hobby – public outreach, star viewing trips, scientific lectures, telescope making clinics as well as private members-only dark sky viewing nights and more. The SFAA has been operating since 1952 and proudly continues a long tradition of helping promote the appreciation of the wonders of the night sky within our Bay Area community.
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