more practice

Gettin' fired up about double stars again...

Thought I'd do a little practice run, again...

And I found more errors in my notes! Sheesh. I thought I had this all shaken down. Turns out my spreadsheet notes about which set of numbers to use on the Large Circular Scale (either inner or outer) of the Celestron Microguide was correct but that I had a typo in the introductory notes. Especially strange since I had the same note later in the document—correct. Weird!

First test, after adjusting my notes, with super wide 56 Andromedea? Correct. Estimated separation to be 208" with a Position Angle of 297° using the Teague's standard method; sep 205", PA 298° with the "improved" method. Haas says 201, 299. TheSky6 says 3'21", 297. Sky & Tel: 200, 298.

Second test, 22 Orion, extra-super-wide. Not marked as such in Stellarium. Not listed in Haas's book. I got sep 246", PA 240°. TheSky6 says 4'02", 240°. The Sky & Tel list that I originally used for the suggestion: 242, 225.

The cool thing: I did not look at my notes on that last run. I just gathered the data and filled out my spreadsheet!