hi bojan,
take a look at this
chart of Proxima generated with Starry Night. I found that the asterism I've marked in red stood out as a clear pattern - they form a right angle, and helpfully the star nearest Proxima is out of position and points towards it. Then it was easy enough to identify the triangle marked in green, with Proxima at the tip.
It probably helped me that mag 11 is about the faintest I can see clearly with my 8" here in Cairns, so there were not too many dim stars around to confuse matters.
The circle is approximately 1 degree across, btw.
Good luck!
Rob
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