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Have you got a dew shield for the scope? That would block any stray light from street lights - as long as you aren't pointed close to them.
Assuming that isn't the problem, and with a bit of plate solving:
Cen A - the most likely culprit is Iota Cen. Maybe SAO 204545
HH - the most likely culprit is Alnitak
M42 - the most likely culprit is Alnitak
A dew shield might block those too.
There is nothing particularly bright near NGC2070 to cause reflections.
Andrew
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