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- Sat Apr 09, 2016 4:59 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: A Green Flash of Spring (2016 Apr 09)
- Replies: 8
- Views: 2293
Re: APOD: A Green Flash of Spring (2016 Apr 09)
The reason a green flash is rare is not that green light is short wavelength. It's kind of mid-range in the visible spectrum in fact. It's that the range of wavelengths the eye/brain perceives as green is pretty narrow compared to the reds/oranges/yellows on the long wavelength side and the blues/vi...