Jonathan Irwin

Senior Research Associate, Institute of Astronomy, University of Cambridge

Current Work and Research

PLATO Mission
PLATO Data Center (PDC) Exoplanet Analysis System (EAS).

Past Work and Research

The MEarth project
A transit survey of field mid-to-late M-dwarfs searching for low-mass planets. Systems programmer, technician and primary operator.
Transiting Exoplanet Survey Satellite
Target Selection Working Group (TSWG) and TESS Follow-up Observing Program (TFOP).
The Monitor project
Time-domain photometric survey of young open clusters.
Wide Angle Search for Planets
Part-time systems programmer, 2003-2007.


M-dwarf spectral standards
A version of the RECONS list with extra information for observers.
Compiled M-dwarf photometry
A variety of photometry from the literature for M-dwarfs. All in ASCII machine readable form. Many of these tables were converted from the ADS scans of the papers for my own use, but are made available in case they are also useful to other researchers.
Monitor rotation period data
All the Monitor rotation periods that have been published so far are available here.



Transit model demo
Experimental interactive demonstration of transit models.
Other site
For things that don't belong at work.

Other projects

The IoA all-sky camera
Computers, software. On the grounds of the Institute of Astronomy, Cambridge, UK.
Three Mirror Telescope
Telescope drives, computers, control software. On the grounds of the Institute of Astronomy, Cambridge, UK.


Jonathan Irwin (jmi at ast dot cam dot ac dot uk)