I am the director of the Brecon Beacons Observatory in the International Dark Sky Reserve at the Brecon Beacons National Park. I have been an astronomer for over 40 years and have written many academic papers. I have also written five books on features of observing (Alien Worlds; Planetary Nebulae; Choosing and Using Astronomical Filters; Observing Nebulae and Dark Land, Dark Skies) and many articles on observing the night sky for the journals Popular Astronomy, The Deep Sky Observer and Astronomy Now. 

I am a dark sky ambassador for the National Park and a member of the steering committees of Brecon Beacons and Snowdonia National Park dark sky reserves. I am a Fellow of the Royal Astronomical Society and a Fellow of the Higher Education Academy. I am also a STEM ambassador for STEMnet and a science presenter and astronomer at Dark Sky Wales.

My website can be found at: http://martgrif.wixsite.com/astronomer 

The Observatory Facebook page can be found at: https://www.facebook.com/Brecon-Beacons-Observatory-1633513230212627/?ref=aymt_homepage_panel

Local society membership: Bridgend Astronomical Society