ɪt hˈæzbiːn əbzˈɜːvd ðæt ˈæftɚ mˈeɪdʒɚ sˈoʊlɚ stˈoːɹmz, ɐn ɪmˈɪʃən ʌv lˈaɪt wɪð ɐ wˈeɪvlɛŋθ ʌv fˈaɪvhˈʌndɹɪd fˈɪfti sˈɛvən.sˈɛvən ˌɛnˈɛm ðɪ ˈɑːksɪdʒən ɡɹˈiːn lˈaɪn əkˈɜːz əkɹˌɑːs ðɪ ɛntˈaɪɚɹ ˌʌpɚɹ ˈætməsfˌɪɹ ʌv vˈiːnəs.
It has been observed that after major solar storms, an emission of light with a wavelength of 557.7 nm (the oxygen green line) occurs across the entire upper atmosphere of Venus.