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One thing I learned while getting into astronomy is that full dark adaptation can take up to 25 minutes. Some will use an eye patch to keep their observing eye
by robertfw 12y ago
One thing I learned while getting into astronomy is that full dark adaptation can take up to 25 minutes. Some will use an eye patch to keep their observing eye dark adapted (this may also be the reason that we associate pirates with an eye patch, to facilitate seeing above and below deck)
- mladenkovacevic 12y agoI should say I did spend even more than 25 minutes per session just staring at the sky from one of the beach chairs.