(glossary entry)


The Association of Lunar & Planetary Observers is the most active amateur group in the US studying the Moon and planets. The ALPO was founded and led for decades by Walter Haas.

Additional Information

LPOD Articles


This page has been edited 7 times. The last modification was made by - JimMosher JimMosher on Nov 15, 2010 2:30 pm - mgx1