Now here is the answer from the experts.
http://news.asiaone.com.sg/a1news/20070108_story2_2.html
Fireball lights up Singapore sky
Expert confirm it to be a meteor
Jan 8, 2007
AsiaOne
It was over in seconds.
But sharp-eyed Singaporeans from all over the island reported seeing a bright light streaking across the evening sky yesterday.
Those who saw the phenomenon came from different parts of Singapore, including residents and visitors in Woodlands, Bedok, Selegie Road and Marina South.
Some said it was a green light, others thought it was a shooting star or a satellite hitting the atmosphere as it returned home.
The president for the Astronomical Association of Singapore, Albert Lim, told AsiaOne that he had confirmed the green light to be a "Fireball".
Mr Lim went on to explain that a meteor is only called a fireball when it is huge and burns for more than 10 seconds.
Fireballs have a brightness magnitude of 10, while the sun is measured at -26.5 and the moon is measure at -12.5, he said.
Mr Lim also told AsiaOne that such a phenomenon will occur again but he does not know when as this "fireball" is probably a sporadic one that does not belong to a group of meteors such as Leonid and Orionid.
Eye witnesses accounts
AsiaOnes supervising editor, Paul Jansen, who was out for a walk with his wife in Seletar estate, saw the phenomenon at 7.41pm and guessed from its tail and the speed it streaked across the sky that it could not have been a jet aircraft, even a military one with full afterburner on, and that it was most likely a meteor.
It was spectacular. Even more dramatic than the Northern Lights we witnessed in northernmost Alaska. The front of the phenomenon was a ball of red and yellow and this was followed by a long greenish-yellow tail.
"It was much too fast and the tail much too long to be a jet fighter, even a supersonic one," said Mr Jansen, who holds a pilot's licence and has flown military jets.
"The pity was the people around us at the time had their eyes on the ground and by the time they reacted to our exclamations, the fiery object had almost zoomed out of sight."
AsiaOne reader Edwin Sin also caught sight of the phenonemn from Orchid Country Club in Yishun. He said: "The greenish light was awesome, lighted up the otherwise pale evening sky into glows of green."
Another eyewitness was Adrian Tan, who was on his way home after his run at the Singapore Botanic Gardens. He saw what he described as a "streak of burning lights".
"It's a ball of bright yellow, green, blue, orange lights tapering to two points speeding across the sky," he said in an email to AsiaOne.
Meanwhile, the meteorological service said the light was too small to be reflected on satellite pictures and that it had no information on the phenomenon.
For more eyewitness accounts, click here.
If you also have pictures or videos of this phenomenon, email us at
a1admin@sph.com.sg