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I always thought the Horsehead Nebula was just a dark spot until I saw a hydrogen-alpha shot
For years, I figured those famous pictures were just showing a black shape against red gas. Then I saw a deep image from the Mount Wilson Observatory using a 12-inch scope and a narrowband filter, and the whole structure just popped with faint, glowing detail around the edges. It's not just a hole, it's a whole complex cloud with its own faint light. Anyone else have a favorite target that looks totally different through special filters?
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gray7926mo ago
Totally. @oscar_ellis gets it, filters change everything.
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casey166mo ago
My old 8-inch Dob showed me the Veil Nebula for the first time with a filter. It was just a faint smudge before that.
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oscar_ellis6mo ago
My first time seeing Orion through an OIII filter was a real "wait, I've been missing all that?" moment.
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