Altair (Altair) the Altair

East of the Milky Way and vega opp-osite place, have a better than her a little dark bright stars, it is Aquila, alpha star of the Altair.The ancient greeks to imagine it as a soaring eagle, in the night sky Altair is the eagle's heart.

In the summer and fall of night it is very famous bright stars in the sky, the silvery white.16.7 light-years from earth, its diameter is 1.6 times the diameter of the sun, the surface temperature of about 7000 ℃, the luminous power 8 times larger than the sun.It as opposed to a "vega" across the galaxy.On July 7, the ancient legend, vega magpie bridge meet.In fact, vega 14 light years apart.Even the most powerful rocket by modern, hundreds of years and never meet.

Altair's apparent magnitude of 0.77 m, is the 12th bright stars throughout the day.It and Aquila beta, gamma star connection is pointing to vega, our country ancient times the beta, gamma star as a cowboy with a pole pick the two children, he was chased vega?But cruel remove the heavenly queen's head of gold zan empty one stroke, transient time river from the sky, turned the pair of lovers separated forever.

Legend later they moved by god, allows two people on the seventh day meet once every year.Every day, all the magpies have to silver river, put up a bridge, let the couple cross the river meet.(The zodiac /astro/)

In fact, it's just the good wishes of people.Altair and vega apart for 16 light-years away, even if you don't have the Milky Way, two people to want to see on one side, also can only be in your dreams!The seventh day of a year, half of the moon is floating near the Milky Way, the moonlight makes us see the Milky Way, the ancients had thought the tianhe away at this moment, the gigolo knit in meet each other at this time.