View Single Post
  #7  
Old 03-03-2016, 03:07 PM
Tropo-Bob (Bob)
Registered User

Tropo-Bob is offline
 
Join Date: Sep 2013
Location: Cairns
Posts: 1,608
Quote:
Originally Posted by Wavytone View Post
Steve,

So much depends on (a) the observer and (b) the type of scope used that I would regard this project as a waste of time. Sissy has seems blissfully ignorant of these factors. Andrew James did this topic to death decades ago - there a table by Robert Atkins which lists this.

http://www.southastrodel.com/Page029e.htm

There is also a formula for unequal doubles, she's not doing anything original.
Maybe not a waste when the advancements in optics are considered: Fluorite Lens, Triplets as well as better reflectors available compared to home ground mirrors some decades ago.

Then, there are EPs to consider.

Nah, projects like this are never a waste and if they are... well there is no harm as everybody is giving their time freely and increasing their own knowledge during the project.
Reply With Quote