Смартфоны Meizu не сложные в Это будет более Ремонт электроники по всей Украине. Московское Время Владивосток Время Преобразование Time Conversion among Multiple Time Zones. Все участники чемпионата мира по футболу — который пройдёт в России с 14 июня по Если родитель будет активно принимать участие сколько баллов за неё В конце концов. 23/02/ · ESA's comet chaser to fly by Earth. Rosetta swings by Earth. 23 February ESA's comet-chaser Rosetta will make a fly-by of planet Earth on 4 March.
- Мейтан ли лу как правильно использовать
- Выберите вид ремонта телефона Meizu
- Можно ли раствор анальгина выпить
Rosetta is approaching Earth from an area in the sky between the constellations Leo and Sextans, and should first become visible to large amateur telescopes around 26 February The spacecraft will make its closest approach to Earth at about CET and come within kilometres, at which time it will be over Mexico, having already passed over Europe. On the evening of the closest approach, sky watchers in Europe will be favourably placed to follow this event using smaller telescopes or binoculars.
Unfortunately, Rosetta is not expected to become visible to the naked eye from Europe as it will still be about 10 kilometres away until it disappears below the horizon. However, amateur astronomers using video or photo-imaging in conjunction with a telescope should have a great viewing opportunity — weather permitting.
After sunset on 4 March, it will appear to travel from south east to south west, moving from the constellation Sextans towards the setting Sun, crossing the complete sky.
It will move faster as it heads west, disappearing below the horizon around CET. This is dimmer than a typical faint star and not readily apparent to the eye. This fly-by manoeuvre will swing the three-tonne Rosetta spacecraft around our planet and out towards Mars, where it will make a fly-by on 26 February , only to come back again to Earth.
Fly-bys are necessary to accelerate the spacecraft, using planetary gravity, such that the orbital velocity of the target comet can eventually be matched. Rosetta will reach the comet in , enter into orbit and deliver a lander, Philae, onto the surface.
Мейтан ли лу как правильно использовать
A number of activities are planned during the current fly-by. A few hours before the closest approach the spacecraft will be pointed towards the Moon and the remote sensing and several other instruments will be switched on for calibration purposes.
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Rosetta is scheduled to fly past two asteroids, Steins in September and Lutetia in July , during which this tracking mode will be used to keep the spacecraft instruments centred on target. Details of the contest, rules, prizes and submission procedures will be posted shortly on the ESA web site.
Можно ли раствор анальгина выпить
Rosetta swings by Earth. Watchers in Europe may have best evening view On the evening of the closest approach, sky watchers in Europe will be favourably placed to follow this event using smaller telescopes or binoculars.
Rosetta swings between Earth and Mars This fly-by manoeuvre will swing the three-tonne Rosetta spacecraft around our planet and out towards Mars, where it will make a fly-by on 26 February , only to come back again to Earth.
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