J. Roger Angel

Professor of Astronomy
Roger Angel Headshot

Steward N412B
Department of Astronomy and Steward Observatory
The University of Arizona
933 N. Cherry Ave.
P.O. Box 210065
Tucson, AZ 85721

Additional Affiliations

  • Astronomer, Steward Observatory
  • Regents Professor
  • Professor, Optical Sciences 
  • Professor, Arid Lands Resources Sciences - GIDP 

Specific Research Interests

  • Astronomical telescopes and Instrumentation.
  • Extrasolar planets.
  • Optical design and fabrication.
  • Geoengineeering.
  • Optics for solar energy generation

Selected Papers

  • A 20 m wide-field diffraction-limited telescope. Eads RW, Angel JRP. 2020 Phil. Trans. A, Royal Society 20200141. http://dx.doi.org/10.1098/rsta.2020.0141,  2020. One contribution of 15 to a discussion meeting issue ‘Astronomy from the Moon: the next decades’.
  • 6.5 m telescope for multi-object spectroscopy over a 3° field of view.  Ryker Eads and Roger Angel  Applied Optics Vol. 59, pp. G154-G159 (2020) doi.org/10.1364/AO.393365
  • A Cryogenic, Liquid-mirror Telescope on the Moon, to Study the Early Universe Roger Angel et al., ApJ, 680, 1582, 2008.  
  • Feasibility of cooling the Earth with a cloud of small spacecraft near the inner Lagrange point (L1) Roger Angel PNAS, 103, #46, 17184-17189, 2006.
  • Buyer’s guide to telescopes at the best sites:  Dome A, L2 and Shackleton Rim (Roger Angel), Optical, Infrared, and Millimeter Space Telescope, SPIE Proc. 5487, 13-25, 2004.
  • Direct Detection of Terrestrial ExoPlanets:  Comparing the Potential for Space and Ground Telescopes, (Roger Angel) ESA Special Publication SP-539, 221-230, 2003.


  • D.Phil., Oxford University (United Kingdom), 1967
  • M.S., California Institute of Technology, 1966
  • B.A., Oxford University (United Kingdom), 1963