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What the comet was approaching the Earth

Events

A small comet Hartley 2 will be visible from Earth with the naked eye, on 20 October, when she will fly past the planet just 11 million kilometers. Over the last century, this will be the closest “contact” of our planet with a comet.

Hartley-2 was discovered in 1986. Its orbital path was far from the Earth, while the couple spins around Jupiter do not orbit drew closer.

Hartley-2 will be included in the number of comets that passed in the last century is quite close to the Earth.

Comet McNaught (McNaught) lit up the sky in 2007. Becoming the brightest comet in over forty years, McNaught was dubbed the great comet of 2007. The astronauts were able to observe this comet, resulting in Strait light on the composition of these celestial bodies. spacecraft Willis found here the decrease of the solar wind.

The comet’s discoverer, Australian astronomer Robert McNaught (Robert McNaught) was discovered in 2009 a new bright comet McNaught C/2009 R1 . flying past Earth in June of this year. Continue reading

Planet in February 2016

In February, continuing a run of parade of the five planets – mercury, Venus, Saturn, Mars and Jupiter lined up in the morning sky. In early February, their background will be the sickle of the waning moon, and by the middle of month two of the five planets will become unavailable for visual observations of mercury and Venus, disappearing into the rays of the rising Sun. Jupiter is in its best appearances in 2016. Uranus and Neptune gradually complete its visibility in the evening sky. The sun moves through the constellation of Capricorn, February 15, passing in the constellation of Aquarius.

The moon will come together with these planets: 1 February when the lunar phase is from 0.5 to Mars, on 4 February when the lunar phase 0.2 to Saturn, on 6 February when the lunar phase is 0.08 – Venus and mercury, 10 February when the lunar phase 0,03 – with Neptune, on 13 February when the lunar phase 0.25 and with Uranus, on 24 February when the lunar phase 0,97 – with Jupiter. For observations it is better to choose nights when the Moon is near the full phase passes close to the observed planet. Continue reading

What engine will go to the stars?

I must say that the problem of space distances increasingly asserting itself. Chemical rockets on its effectiveness has exhausted itself for the future. Even the nearest planets of the Solar system on them to fly extremely long. Nuclear space engines while not in orbit, but on paper. Ion on a large scale. The spacecraft with solar sails will be valid only within the Solar system.

What engine to fly to the stars and how? After all, even with a nuclear engine will take flight for decades and centuries! Why? Because, according to theories, it is impossible to exceed the speed of light. And by estimations of astronomers, the nearest star to Earth with exoplanets (a planet similar to earth) is at a distance of 13 light years.

It is about exoplanet Kapteyn b, which is presumably suitable for life. For those who do not know: for light year, the astronomers believe the distance that a beam of light passes in our earth year at the speed of 300,000 kilometers per second. Other discovered exoplanets: Gliese 832c (16 light years), Gliese 667 Cc (22,7 light years), Kepler 186f (500 light years), Kepler 62f (1200 light years). But on a normal ship flight to the nearest star to us (alpha and Proxima Centauri – the distance in four and a half light years) will take time-75 thousand years. Of course, not light, but ordinary, earthly years. Continue reading

NASA scientists have discovered the Solar system's tail
NASA scientists have discovered the Solar system's tail, like a comet "Tail" of the Solar system, consisting of a flow outgoing from the Sun fast-moving charged particles, shaped like a…

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What the comet was approaching the Earth
Events A small comet Hartley 2 will be visible from Earth with the naked eye, on 20 October, when she will fly past the planet just 11 million kilometers. Over…

Continue reading →