"The green color comes from the gas that comes out of the comet," he said.
"There is a lot of ice on it and methane – it's essentially like a dirty snowball, and so when it goes around the sun it melts … and is a steamy, smelly green glow."
Hours later, the stars shine to flash over the sky as the Earth passes through the tail of the 3200 Phaethon asteroid.
They look impressive from the earth, but the falling stars are actually only small cliffs that are broken by the asteroid before they burn in the Earth's atmosphere.
"They are about the size of a grain of sand, or even a small rock, and they travel thousands of miles an hour," said Dr. Tucker.
While observers will need a binoculars or telescope to capture the Christmas room, meteor shower will be seen everywhere in Australia, even larger cities, as long as it's a clear night.
"It's very accessible, you do not need anything special, you just need the night sky," said Dr. Tucker.
Sydney: Mostly cloudy conditions and low fog, possible breaks.
Melbourne: A cloudy night with scattered thunderstorms.
Brisbane: Mostly cloudy. High risk of developing showers.
Adelaide: Overcast, but possible breaks.
Perth: mostly clear evening.
Hobart: Mostly cloudy.
Canberra: Possible breaks, but mostly cloudy.
Darwin: Partly cloudy.