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Ken I have a GSO 8x50 RA finder (which hasn't been used for a while) but from memory it's FOV is almost exactly the distance between Alpha and Gamma Crucis, which should be an easy and readily checkable angular distance in CDC, etc.
For newbies (like myself a few months ago) that's the top and bottom stars of the Souther Cross "kite".
My finder either just barely fits both of these stars in at once, or just barely doesn't ... I'll check for you tomorrow night (locked away inside at work now until 7am, can't get to the sky - or finder - right now).
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