General Meeting

Next Meeting:  Friday, May 5, 2017

Open to the Public:  TAAA encourages the public to join our general meetings held on the first Friday of the month in the Steward Observatory Lecture Hall (Room N210) on the U of A Campus.

NOTICE:  The May 5 meeting will be held in the Kuiper Science Building (Lunar & Planetary Lab), 1629 E University Blvd (just east of Flandrau Planetarium on the UA Mall).  Room 308 (one floor up from ground level).

Gateway to the Galaxy
Bringing the Magic of the Universe to Life
6:30 (Social)
7:30 (Presentation)

Experience the excitement firsthand of the future of our Chiricahua Astronomy Complex (CAC).  Learn the history of how it all got started, the recent events that are turning CAC into a world-class complex, and the future that will provide unprecedented dark-sky observing and education opportunities.

TAAA Elections will follow Presentation

See Map

Previous Meeting:  Friday, April 7, 2017

Introductory Presentation – 6:30 PM

Seasonal Night Sky Objects

Presenter:  Mary Turner, PhD

Mary Turner, TAAA’s appointed Chief Observer, takes us on a tour of the spring night sky. As usual in her popular talks, Mary’s use of astronomical data, images, and mythology brings the seasonal changes in the sky to life.

Main Presentation – 7:30 PM

Satellite Galaxies and Dwarfs in the Local Group

Presenter: Ekta Patel is a third year graduate student in UA’s Department of Astronomy and Steward Observatory, pursuing her doctoral degree in Astronomy & Astrophysics. She holds a B.A. in physics from New York University. Ekta is also a National Science Foundation Graduate Research Fellow. Her theoretical research focuses on the orbital evolution of satellite galaxies — galaxies that orbit larger host galaxies.

In her presentation, Ekta will review the current classification system used by astronomers to identify types of galaxies. She will then present an overview of satellite galaxies—what they are, how they were discovered, and how astronomers use them to understand the formation and evolution of our own Milky Way galaxy and our neighboring Andromeda galaxy. She will explain her current research, which uses computer simulations of the universe to study satellite galaxies in a context beyond the scope of what observations alone can teach us.