source - https://www.reddit.com/r/space/comments/4dize1/lucky_photo_of_a_meteor_over_new_zealand_4516/
ThaiKarma wrote :
Colours of meteors depend on the relative influence of the metallic content of the meteoroid versus the superheated air plasma, which its passage engenders:
Orange-yellow (sodium)
Yellow (iron)
Blue-green (magnesium)
Violet (calcium)
Red (atmospheric nitrogen and oxygen)
SilentEchoes found :
