With the moon nearly full this evening I knew I wasn’t going to get much done so just for yucks I got my ETX-60BB out to test it with my shiny new Televue 5x Powermate. Much to my surprise I found using my trusty old 20mm Erfle (88x) this little scope nicely separated both pairs of epsilon Lyra, the double-double. With separations of 2.4” and 2.1” this shows the ETX-60BB delivers diffraction limited images with a theoretical limit of 1.9”. The diffractions rings weren’t the prettiest I’ve ever seen, but the pair were nicely split.

Pretty spiffy.

-John