Colors of Meteors
Every streak has its character, just like the meteor showers. Among all available ones, the Geminids of December is the most spectacular one. They are known to give out a blaze of emerald green, violet, and pink. The August Perseid will send streaks of lime green, purple and pink. It is hard to differentiate the colors as they will flash right across the sky in just a few milliseconds. Then you have Orionids of October, which are faster but dimmer. These streaks will have a pretty whitish orange shimmer to them. There are mainly two processes that will account for these hues.
As one meteor hurtles through space’s vacuum, there is nothing available to slow the rock down. But when it encounters air resistance at the edge of the mesosphere around 80.5 Km up, the stone starts getting hot. This heat will eventually cause the rock to burn. The flames will have multiple colors, based on the composition of the stone. The elemental recipe will determine its glow causing the metallic elements to be the brightest of them all.