On Saturday, January 10, 2015 at 3:28:06 PM UTC-8, oriel36 wrote:

The line-of-sight observation of Sirius and its first annual appearance just far enough to one side of the Sun's glare provides the defining observation for the Earth's orbital position in space

Sirius is never 'just far enough to one side of the Earth's glare'. At their closest approach, Sirius is about 20 degrees south of the Sun, about 40 solar diameters away! You are probably unable to identify Sirius in the night sky, and have no business pretending to know what's going on in the sky.