On July 5, 2013 it was confirmed about existence of one more, 14th satellite of the last planet of Solar system – satellite of Neptune. The picture from the Hubble telescope shows recently opened companion of the Neptune at number S/2004 N1. The black-and-white picture was made in 2009 the Hubble telescope and a color picture of the Neptune in August, 2009. Thanks to new opening of this satellite, the number of the known moon round the last planet increased to fourteen. According to preliminary estimates scientists, diameter of the new S/2004 N1 satellite of Neptune is equal 16-20 km that is the smallest today the known companion of the Neptune. It so dim and small in a size that it is weaker approximately in 100 million times of the most dim star which the person can see with the naked eye. At Voyager-2 spacecraft flight by a planet in 1989, he couldn’t find this satellite. The author of opening Mark Showalter from Search for Extraterrestrial Intelligence/SETI/ could find this satellite during research of arches, and as segments round the Neptune. For its search there were used about 150 archival pictures of the Neptune, which were made by the Hubble telescope during the period from 2004 to 2009.
On Jul 02 declared that two satellites of Pluto received official names. In recent years in a dwarfish planet were found earlier unknown two natural satellites. Now the total of satellites of Pluto equals to five. This is Charon, Nikta, the Hydra, the Kerberos and Styx. And, the last two satellites of Pluto were found with help of the wide-angle Wide Field Camera 3 chamber which is established on a space telescope Hubble. The last two satellites were open in 2011 and 2012. After opening they temporarily received P4 and P5 designations. Throughout long time astronomers from the International Astronomical Union didn’t know how to call new satellites of a dwarfish planet Pluto, yet didn’t decide to pick up names for objects of P4 and P5 by public vote. So, yesterday was made the decision to call the last two natural satellites of Pluto with the names Kerberos and Styx.
The black gas giant of TrES-2b rotating round a star of the spectral class G0V GSC 03549-02811 was open by the transit Trans-Atlantic Exoplanet Survey method on August 21, 2006. The surprising planet is located at distance about 720-750 light years from Earth in zodiac the Dragon constellation. Opening of the gas giant TrES-2b was confirmed on September 8, 2006.
On May 22 we will be able to observe bright and quite unusual occurrence when planet Saturn will come nearer to the Moon. This week is really full interesting astronomical of events. So, besides, that this week Mercury, Venus and Jupiter will gather on the evening sky in the form of a triangle with the parties about 2 degrees, we also will be able to observe rather bright planet Saturn near our natural satellite. Today the Moon enters a full moon phase. It will approach with Saturn as much as possible and “will concern” bottom edge of northern border of a terrestrial penumbra. Then will pass through zodiac constellations of the Lion, the Maiden, Scales, the Scorpion and the Sagittarius, possessing night visibility.
For the first time such large planets as Venus, Jupiter, Mercury and Mars were built to one line and shined east part of the sky early in the morning during the first hours sunrise over Sydney in Australia. This week the brightest planet Venus came nearer at once to Jupiter, Mercury and Mars and arranged so-called “the planetary summit”. Such unique astronomical phenomenon hardly will repeat till 2040. So just now it is possible to see an interesting phenomenon with four planets built practically in a rank in the photo, made over Sydney at sunrise.
The group of astronomers from LeicesterUniversity (Britain) collected the proofs on which the rings of Saturn daily lose huge volumes of substance, which drops out in a planet ionosphere. It is known, that rings of a planet consist both of submillimetric particles of ice, and of huge blocks with size in kilometers. If large fragments of ice move in rings on Keplerian orbits, movement of small particles if they receive rather big electric charge a bit different. Like particles of a solar wind in near-earth space, these micro particles of ice are capable to leave the plane of rings and, being cast over power lines of a magnetic field, to travel to Saturn. If this is so, scientists argued, a certain stream of weight has to drop out constantly at different widths of the atmosphere of Saturn. To see a stream of the frozen water they didn’t hope, but it was succeeded to notice characteristic signs of this process. Scientists noted, that this sleet drops out in a planet ionosphere generally at the widths from 25 to 60 degrees, and as a whole such loaded precipitation covers from 30 to 43% of a atrmosphere of Saturn. For this moment it is unclear, whether water reaches the planet atmosphere in the form of ions or in the form of the submillimetric loaded particles of ice. The main result is not in an assessment of evolution or time of life of rings, and that we see in the atmosphere of Saturn.
According to a new study, huge gas planets’ migration created the meteor storm, which is the biggest in our solar system’s history.
Our solar system was formed 3.9 billion years ago, which was the result of cosmic tempest. There was a migration of planets, in which the Jupiter and Saturn moved closer to the Sun, but the Neptune and Uranus moved further.
The gravitational effects formed by their migrations. The amount meteors were flung towards the solar system, where they clashed with the terrestrial planets, including the Moon and the Earth.
Scientists published habitable exoplanets catalog to list all the known planets in the galaxy that could potentially be habitable to life. The count is at seven so far, with many more to come, researchers said. When it was first released last year, it had two potential habitable planets. According to lead researcher Abel Mendez director of the University of Puerto Rico the team expected to add maybe one or two more in the catalog’s first year. The addition of five suspected new planets was wholly beyond anyone’s expectations. Mendez also said scientists are getting smarter about finding exoplanets, and the pace of discovery is increasing. The team expects to add new models in the coming year, which will affect the measurements on objects already in the catalog.
According to a recent study, tens of billions of planets around red dwarfs are likely capable of containing liquid water, dramatically increasing the potential to find signs of life somewhere other than Earth. Red dwarfs are stars that are fainter, cooler and less massive than the sun. These stars, which typically also live longer than Class G stars like the sun, are thought to make up about 80 percent of the stars in the Milky Way, astronomers have said.