What sort of resolution have people gotten when looking at Epslion Lyrea with
either 1633 or 1605-A
either 1633 or 1605-A
Sears 60mm Discoverer will it split double double
Started by Chicago Astro, 12/08/2009 05:54PM
Posted 12/08/2009 05:54PM
Opening Post
Posted 12/08/2009 06:13PM
#1
Mark Kuba said:
What sort of resolution have people gotten when looking at Epslion Lyrea with
either 1633 or 1605-A
Mark: The double-double is within the capabilities of a good 60mm refractor. The Dawes limit is about 1.95 arc-seconds for a 60mm but the double-double are not equal magnitude pairs. I have owned a few of the Sears scopes you mention and if I remember correctly, it is possible. A hybrid diagonal with modern eyepieces makes it easier.
My favorite 60mm is an Asahi-Pentax and it definitely splits the double-double. It has a full sized drawtube so I was able to install a 1.25 inch visual back.
Jon
Funding Member
