General Meeting – December 2019

Irvine Lecture Hall of the Chapman University 336 N Center St, Orange, CA, United States

Astro-cinematography from the Mount Laguna Observatory The stars and galaxies that fill the night sky appear roughly today as they have throughout human history. However, close inspection shows that these objects change, sometimes dramatically, over decades or months, or occasionally over just minutes. The field of time-domain astronomy has arisen in recent years thanks to […]

General Meeting – November 2019

Irvine Lecture Hall of the Chapman University 336 N Center St, Orange, CA, United States

OUR LITTLE CORNER OF THE GALAXY – THE EARTHLIGHT EXPRESS   In The Earthlight Express, internationally published science artist Chris Butler brings his popular Our Little Corner of the Galaxy tours of the universe close to home – with an excursion across the wild and majestic wastelands of Earth's moon.  Join Chris for a unique […]

General Meeting – October 2019

Irvine Lecture Hall of the Chapman University 336 N Center St, Orange, CA, United States

The Universe in Infrared Light (There is no Red in Infrared) The infrared part of the electromagnetic spectrum plays an indispensable role in both terrestrial and astronomical applications. On Earth, IR light runs our remote controls, provides security and surveillance, and identifies disease. In space, infrared light allows us to explore planet surface features, quantify […]

General Meeting – September 2019

Irvine Lecture Hall of the Chapman University 336 N Center St, Orange, CA, United States

News from the Universe The Virgo and two LIGO Gravitational Wave observatories are in observation mode. They detect more than one inspiral event per week, of Black Holes and Neutron Stars, and started making a strange picture of the collapsed-matter Universe. Why are there so many heavy Black Holes out there? How did they form […]

General Meeting – July 2019

Irvine Lecture Hall of the Chapman University 336 N Center St, Orange, CA, United States

From the big bang to the empty end - the universe from the point of view of modern cosmology The scientific view point on our Universe has gone through a major transformation in the last decades. In my talk, I will talk about the knows but also the major unknowns we have. My main focus […]

General Meeting – June 2019

Irvine Lecture Hall of the Chapman University 336 N Center St, Orange, CA, United States

Exoplanets: Finding Life in the Galaxy Join Dr. Zellem, a planetary astronomer at NASA’s Jet Propulsion Laboratory, as he discusses how scientists find and characterize exoplanets, planets outside of our Solar System, with the ultimate goal of finding extraterrestrial life. Robert Zellem

OCA General Meeting – DEC 2018

Irvine Lecture Hall of the Chapman University 336 N Center St, Orange, CA, United States

Astrophysics learning from the detection of Gravitational Waves We often said that the detection of gravitational waves would open a new window on the Universe. Well, it was more surprising than expected. I will illustrate the latest events found in the data, give you a glimpse of the strange things that we see through that […]

OCA General Meeting

Irvine Lecture Hall of the Chapman University 336 N Center St, Orange, CA, United States

Meetings are FREE and open to the public, and are held at Chapman University Agenda: Club Announcements Whats Up: See Announcement on Home Page. Main speaker: See announcement on Home Page break Library: Members can check out books from our extensive collection. Refreshments: will be available (coffee, donuts, soft drinks, etc.).