synonymComet Lulin(Lulin comet) generally refers to Lulin (comet)
Comet Lulin is composed ofInternational Astronomical UnionChinaSun Yat-sen UniversityThe undergraduate observatory jointly discovered and named the comet "C/2007N3 (Lulin)".The new Chinese meaning of "C/2007N3" is: "The third confirmed comet belongs toAperiodic comet”。It is estimated that this comet passed the perigee on February 20, 2009, only 60 million kilometers away from the Earth, with a brightness of 5.9 magnitude, barely visible to the naked eye.Some data photos about Lulin Comet show that the comet has two tails and is green.
One afternoon in the summer of July 2007, a 19-year-old student from Guangdong, ChinaYe QuanzhiLie on the table and concentrate
Comet Lulin
Geognomy
Look at a star region in a black and white picture.This photo was taken by Taiwan astronomer Chi Sheng Lin one night a few days agoLulin Observatory (Lulin Observatory) during the sky survey.Ye QuanzhiHis fingers moved from one point to another and then stopped.He found that one of these stars was not a star, but a comet,Ye QuanzhiIs the first person to discover this comet.Comet LulinNow approaching the Earth slowly, this comet was named after the observatory that took the photo of the star.Ye QuanzhiHe said, "It is a beautiful green star. Now, you can see it with your naked eyes any day."
On February 24, 2009, the distance between the comet and the earth reached the minimum.The recent estimated data set its brightness at 4-5, which means that the bright shadow of this comet will be seen in the dark sky in the countryside.However, no one can say exactly its bright level, because this appearance will beComet LulinThe first time it came to the inner solar system, it was also the first time it came into contact with very strong sunlight.Maybe it will bring us unexpected surprises.
Comet LulinThe atmosphere of the comet is as big as Jupiter, and the gases that make up the comet's atmosphere are the key to its green appearance.The airflow from the comet's nucleus contains cyanide (a toxic gas found on many comets) and divalent carbon (C2).Both of these substances will emit green light under the sunlight in the vacuum environment near the comet.
In 1910, when the writer of the day said that Halley's comet, which contained rich cyanide in its tail, would pass near the earth, people were panic stricken.False alarm: The comet's thin tail will not penetratepackageThe dense atmosphere around the earth;Even if it penetrates the atmosphere, it does not contain enough cyanide to cause real trouble.Comet LulinWill cause more trouble thanHalley's CometSmaller.At the end of February,Comet LulinWhen it is closest to the earth, it will be 38 million miles away from the earth, which will do no harm to the earth at all.If you want to watchComet Lulin, you'd better set the alarm clock at 3:00 a.m.Before the sun rises, this comet willIn the night skyA few hours later, it may appear in the southern night sky before dawn.The following are some dates that are easier to see:
February 6:Comet LulinIt will slide past Zubenelgenubi, a double star in Libra.Di Suyi is not only an interesting topic, but also a guide within easy reach.You can see Di Zuyi with the naked eye. It is about the same asUrsa MajorInBig DipperEqually bright;utilizeBinoculars, you can see very clearlyComet Lulin。
February 16: On this day,Comet LulinWill fly over Koji in Virgo.Antares is the brightest star, and also a signpost. Even astronomers in the city can see it.The star seeking mirror points to Antares 1, which can be observed through this optical instrument without moving the telescopeComet Lulin。
February 24: The morning of this special day,Comet LulinWill fly over the earth at the nearest distance.At that time,Comet LulinWill be in Leo with Saturn.Saturn is easy to see with the naked eye,Comet LulinIt is also easy to see.If this is not enough to pull you out of your warm bed, nothing will attract you to get up early.
