8.4-magnitude earthquake

On Wednesday 16 September, an 8.4-magnitude earthquake hit Chile. Its epicentre was just over 40 miles away from our observatory there, GJW-CL.



Each of our five observatories is equipped with a telescope of the Ritchey-Chretien design whose primary mirror has a diameter of 0.5-metres.



All five of our observatories are equipped with Aquila spectrographs designed and constructed by Steven Lee of AAO.

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Our fifth observatory

We are immensely grateful to Derek Benham of New York for his generous gift to the University of Oxford for enabling the fifth Global Jet Watch observatory to be built.


The Global Jet Watch project consists of five observatories strategically distributed in longitude around Planet Earth, such that there is always one of these in darkness.  Optical astronomy has to be done at night!   Our observatories are equipped with research-grade instrumentation and telescopes.  They are located in the following places: 

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In a future phase of this web-site, we will have a login area for amateur astronomers who have expressed an interest in helping us observe some of our targets.   We plan a repository for time-critical data from such observers.  Please register your interest for this future development by sending us a message via the Contacts page.