• THE JIM LOUDON OBSERVATORY
  • Loudon Obs. WEATHER LINKS PAGE
    
  • Astronomy and More in Arizona
  • Some useful tables.
  • RIK'S PALEO PAGE
  • Gardening and Bonsai

Associations and Memberships:

• Ass'n of Lunar & Planetary Observers - A.L.P.O.
• American Ass'n of Variable Star Observers - A.A.V.S.O.
• British Astronomical Association - B.A.A.
• The North American Sundial Society - N.A.S.S.
• Tucson Amateur Astronomical Association - T.A.A.A.
• Warren Astronomical Society W.A.S.
• Mid-America Paleontology Society - M.A.P.S.
• International Occultation Timing Ass'n- I.O.T.A.

Formerly with these researchgroups:

• Retired from: THE CATALINA SKY SURVEY
  Lunar and Planetary Lab
  The University of Arizona
  
• Planetary Occultations Group
• Planetary Atmospheres Group