It’s a greenish, "two-tail" comet that will offer celestial spectacle; that’s what astronomers say about Comet Lulin, which you will be able to view over the next couple of nights with the naked eye, when it comes within 38m miles of Earth.

Comet Lulin, also known as “green comet,” will reach its peak brightness and fastest apparent speed, when it reaches within 38m miles of Earth. It is expected to come within 38m miles of Earth at 10:43 p.m. ET.

According to astronomers, Comet Lulin, discovered by Ye Quanzhi and Lin Chi-Sheng from Taiwan's Lulin Observatory in 2007, will be visible all night, from dusk until dawn, in either hemisphere. If viewed far away from city lights, it could be viewed with telescopes, binoculars or even with the naked eye. It could be viewed just below Saturn, in the constellation Leo.  

Astronomers reported that the Comet Lulin will appear like a tiny fuzz ball with two tails, one trailing and one pointing toward the Sun, but the latter is an "anti-tail," a rare optical effect. Lulin is orbiting "backward" compared with the planets, and the greenish color of the comet comes from a type of carbon and cyanogen, a poisonous gas.

Ralph Martin, astronomer at the Perth Observatory, Perth has only a couple of nights left to see Lulin's Comet, which came within a mere 60million km of earth, last night.

Martin said, "If you want to see it tonight, it will be about five degrees away from Saturn. At 10:30pm, look towards the east to find Saturn. It will (also) be 25 degrees above the horizon. When you look at it, it won't be wizzing across the sky. It won't be visible for very long because it's a faint object, and after a few nights it will fade."