The Centre for Planetary Sciences at UCL / Birkbeck


Guest crater on the Moon

17 August 2017

A crater on the Moon has been named after the late John Guest (1938-2012), a pioneer in volcanology and planetary science, who inspired generations of colleagues and students at UCL for over half a century.

John Guest

During his time at UCL, John established the emerging disciplines of planetary geology and physical volcanology and, in 1980, he founded the first NASA Regional Planetary Image Facility outside the USA. 

The lunar feature, whose name was recently approved (25 July 2017) by the International Astronomical Union (IAU) Working Group for Planetary System Nomenclature, is described in the Gazetteer of Planetary Nomenclature: Guest.  The crater is shown in context and close up in the images below.

Lunar Guest crater - regional

Lunar Guest crater - close up

A summary of John's life and the legacy of his ground-breaking work can be found in his obituary from The Geological Society.