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Your main enemy when it comes to face on spirals is light pollution. You'll want to be in the darkest possible skies you can find to maximize your chances of seeing the spiral arms. Because these objects have lower surface brightness than edge on galaxies, any amount of LP will quickly kill it and all you'll see is the fuzzy blob of the core. Face on spirals from my suburban home are spectacularly unimpressive. A mag of around 80-100x seems ideal for M83.
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