To be more precise, 7th January should be the first opportunity to see the Pleiades in a dark sky. There will be a short window of opportunity at 9:15 p.m. between the end of twilight and moonrise.
Try looking at the moon for longer or in the early twilight, it gets dimmer the longer you look. I like to observer the moon using no filter - even when it is full. I prefer to allow my eyes to de-dark adapt instead of adding extra glass which could degrade the image.
In my opinion the planet that benefits most from filter use is Jupiter. If you can get your hands on a blue filter it can enhance the clouds and great red spot.
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