Well done, Peter. For only five 10 min subs, that's a great result. Once you get your guiding under control it will be sharper and you can go longer. If your mount can handle it, try for 15 min subs. The filter doesn't let much light through so this will help your S/N ratio. It's amazing what an Ha filter can achieve under light polluted skies and moonlight. Enjoy using it.
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