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Hi Terry
In 2008 Sirius B separation is 8.2" and 2009 8.6".
Diffraction is the main problem as sirius B is almost due east of Sirius.
Rotate your scope so that your diffraction spikes are not covering due east.
Use your highest power eyepiece and when Sirius is highest in the south.
Rigel is very similar to Sirius in separation but the magnitudes are +0.1 and +7.6. Rigels companion is SSW. Try Rigel for practice.
Happy hunting.
I cant wait for my OTA rings to arrive (next week I hope) and then my 40DH will swing into action.
Regards
Steve
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