RASC February Meeting
Friday 20th March 2015
7:30 p.m. to 9:00 p.m.
Speaker Dr. David Turner
The Eyes are Still Good Detectors!
While new detectors have had a positive effect on the precision of observations by amateur and professional observers, and have made it easier to acquire high quality images of astronomical objects, such progress often overlooks the power and precision of simple eye estimates, which are useful in many situations. Described is evidence for the high precision of eye estimates of brightness when conditions warrant them, as well as a variety of techniques that make visual photometry easier and more reliable than is sometimes the case. Examples are presented of stars for which CCD or photoelectric observations can be problematic, and visual observations would be beneficial, in some cases for scientific offshoots. All, of course, can be found in the Observerís Handbook.