Field note · 12 Sep 2026 · 21:10–22:40
Waxing gibbous terminator survey over Mare Imbrium
Members tracked changing contrast along the lunar terminator with 80–120mm refractors. We logged crater shadow depth at three intervals and compared visual impressions with a quick sketch pass under steady seeing.
Takeaway: A 15-minute revisit window sharpened detail recognition more effectively than switching eyepieces repeatedly.