I've heard that if you know where Antares' secondary star is in relation to the primary you can have some success utilizing the diffraction spikes from the spider holding the secondary mirror to enhance the odds of catching the faint companion in between. Also, a good cheat, although a fairly rare opportunity, is to use a favourable lunar occultation. Gotta be quick, but once you've seen it, you've seen it.
Or just buy yourself a 25 inch dob...
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