Total Lunar Eclipse - a Global Event in the International Year of Light

As a grand finale for the International Year of Light Weekend of Light, on 27-28 September 2015 there will be a Total Lunar Eclipse that will be seen around the world. In the night from Sunday to Monday, the Moon will again darken and, during totality, be bathed in a coppery-red light. The event will be visible in its entirety to a large part of the world's population, including Western Europe, West Africa, South America and the eastern part of North America. For those regions where the eclipse will not be visible, the German Offenburg University will broadcast it live within the project EclipseLive.


Astronomical phenomena have fascinated people since the very beginning of mankind. They have an enthusiastic effect, especially on young people. Among the most amazing and well-known phenomena are solar and lunar eclipses. The impact factor of such events is very high, as they are covered by the mass media reports and on the internet, which in turn provides encyclopedic content and discussion in social networks.


Order of events (CEST):

Moon enters the penumbra of the Earth’s shadow 2.12am
Moon enters the umbra of the Earth’s shadow 3.07am
Beginning of total eclipse 4.11am
Totality 4.47am
End of total eclipse 5.23am
Moon exits the umbra  6.27am
Moon exits the penumbra 7.22am
Moonrise (27 September) 6.52pm
Sunset (27 September) 7.08pm


You can check the visibility and the order of events in your region here.

In the broadcasts of 2011, we counted more than 35,000 viewers from 154 countries, which we considered a success. The project, called “EclipseLive” involved more than 50 students of Offenburg University. We contacted researchers from astronomical observatories, some of which got involved and sent us live material from other spots around the world.

Afterwards, a digital “Moonbook” was developed by our students, which is available for download on iPad via iBooks or on your computer via iTunes for free.

The upcoming lunar eclipse should be regarded as an opportunity to attract people around the globe and engage them in an astronomical event. This time around, for a total duration of four hours, we will alternately broadcast live images from the telescope installed on our roof, and short background reports and live interviews.

You, our viewers, are very welcome to communicate with us and become actively involved in the broadcast. Our hosts will guide through the events of this exciting night and, with the help of our experts, try to answer all of your questions. To contact us, you can use one of the following options:


Twitter: @eclipse_live

Facebook: EclipseLive // Offenburg.University

Hashtag: #EclipseLiveOffenburg


Skype: eclipse-live

The EclipseLive2015 team is looking forward to receiving your messages, and to an exciting webcast on September 28 early in the morning!

About Offenburg University

Founded in 1964 as a "National School of Engineering," Offenburg University quickly established itself as a high-performance educational institution with a practical orientation. Today the University forms a thriving community, with more than 4,500 students on two campuses. We offer Bachelor's and Master's degrees in four departments: Business and Industrial Engineering, Electrical Engineering and Information Technology, Mechanical and Process Engineering, and Media and Information.

Offenburg University prides itself on the international orientation of its programs. In 1998, it was one of the first institutions of higher education in Germany to introduce English-taught Master's degree programs through its Graduate School. Today, we offer four programs which cater especially to international students, who comprise about twelve percent of the total student body. Additionally, the International Office maintains active exchange programs with more than 70 partner universities worldwide, providing our students plenty of opportunities to study and pursue internships abroad. Thanks to our proximity with the French border, we can offer double-degree programs with prestigious French universities. A double-degree Master’s program is also offered with the University of Warmia and Mazury (UWM) in Olsztyn, Poland.


About IYL 2015

The International Year of Light and Light-Based Technologies (IYL 2015) is a global initiative adopted by the United Nations (A/RES/68/221) to raise awareness of how optical technologies promote sustainable development and provide solutions to worldwide challenges in energy, education, agriculture, communications and health.  With UNESCO as lead agency, IYL 2015 programs will promote improved public and political understanding of the central role of light in the modern world while also celebrating noteworthy anniversaries in 2015—from the first studies of optics 1,000 years ago to discoveries in optical communications that power the Internet today.  The IYL Global Secretariat is located at the Abdus Salam International Centre of Theoretical Physics (ICTP).

The Founding Partners of IYL 2015 are the American Institute of Physics (AIP), the American Physical Society (APS), the Deutsche Physikalische Gesellschaft (DPG), the European Physical Society (EPS), the Abdus Salam International Centre of Theoretical Physics (ICTP), the IEEE Photonics Society (IPS), the Institute of Physics (IOP), Light: Science and Applications, the International Network, 1001 Inventions, The Optical Society (OSA) and the International Society for Optics and Photonics (SPIE). 

Patron Sponsors include Bosca, the International Association of Lighting Designers (IALD), Royal Philips Lighting, Thorlabs and UL.


Dan Curticapean
Professor Offenburg University

John Dudley
Steering Committee Chair
International Year of Light and Light-based Technologies 2015

Joe Niemela
Global Coordinator (IYL Secretariat)
International Year of Light and Light-based Technologies 2015