planet Venus while moving in an orbit every 583.93 days is between the Sun and Earth.This configuration is called "inferior conjunction."At such moments, the celestial body can cause a partial eclipse, projected onto the disco lights.However, the size of the planet Venus is less than 30 times the sun.Because of this, when viewed through a telescope celestial body can be seen against the background of the stellar disk in the form of small dark circles.However, this phenomenon can be observed without such a device.People can witness the transit of Venus across the disk of the sun, even through the dark glass.If this planet was in the same plane with the Earth, this phenomenon would be repeated for each lower connection.However, she is inclined to the ecliptic 3,395.Therefore, the lower joints celestial body passes to the south or the north star.This is due to the motion of the planet.Transit of Venus may be possible, if the lower connection should take place near the site of the orbit of the planet.
frequency observations
In the Roman Empire once every 110 years passed Centenary Games.Their motto was: "This event is one not seen before and will never see again."Such a large gap between the games chosen to even the centenarians were unable to hold on to the new holiday.Transit of Venus - a very interesting event.It happened in 2012, the 6th of June.Before this it was in 2004.However, hardly any of the people who watched this phenomenon, see him again.Transit of Venus is a twin-phenomenon.First case, the two summer crossing light with an eight-year interval, and then, after 105 years - two winter, too, with an interval of 8 years.Further, through the 121 year and a half, again taking place paired summer passage.The next such event will take place in 2117.
observations last
In our time, no one expects the big scientific discoveries from the contemplation of the passage of Venus across the solar disk, but in the XVIII century the scientific world of Europe went on expeditions to distant lands to capture these phenomena (1761 and 1769 years.) from different places on the planet.These observations have allowed to know the parallax of our star, the size of the solar system and the distance from the star to Earth.Lomonosov, thanks to them, was able to determine that Venus has an atmosphere, making out a thin halo of light around the sun wheel, which arose due to the refraction of light rays in the atmospheric gas.Transit of Venus 2012 special discoveries, of course, to no avail.
As observed similar phenomena
path of Venus across the disk stars and other events associated with the star, should be monitored through the dark glass that can reduce the intensity of light.Otherwise, you can severely injure the eyes.For this purpose good fit protective mask electric welder.Observations can also be used in the fire smoked glass or folded in several layers of film, which is marred and manifested.These accessories are a good filters.To safely observe the phenomenon through a telescope, you must zadiafragmirovat his lens somewhere halfway and at the eyepiece to use dark glass or magnetic disks from the old computer floppy disks.
