The Sissy Haas double star project.

In addition to the many beautiful binaries, there are several observing challenges. This one asks if it’s possible to observe binaries with different magnitudes using apertures at their limits. Those below go from 1.1″ to 4.0″. I have included the SAO numbers.

http://www.billboublitz.com/Haas_Project/Database.html

I made these observing charts and hope to get on with apertures from 90-150 mm,

Nick.