Stars are massive sphere of plasma held together by gravity. As you know Earth’s nearest star is the Sun at the center of the Solar System. It has a diameter of about 1,392,684 km.However, compared to many of the other stars discovered in the Universe our central stars is very small. Some other stars are visible from Earth during the night, appearing as a multitude of fixed luminous points due to their huge distance. Historically, the most prominent stars were grouped into constellations, and the brightest stars gained proper names. The below is the list of top 10 largest stars known in the universe:
Since ancient times and across multiple civilizations, Sirius located in the constellation CanisMajor – also known as the Big Dog, has been surrounded with a mysterious lore. Sirius is the brightest star in the night sky, because of both its intrinsic luminosity and its proximity to Earth at a distance of 8.5 light year. The name “Sirius” is derived from the Ancient Greek: Σείριος Seirios (“glowing” or “scorcher”). Artifacts of ancient civilizations have revealed that Sirius was of a great importance in astronomy, mythology and occultism. Mystery schools consider it to be “sun behind the sun” and, therefore, the true source of our sun’s potency.
All gold on Earth could result from space accident between super dense dead stars. Gold on Earth it is shrouded in mystery as it can’t be formed in stars as easier elements, such as carbon and iron. But the secret can be opened now. As approves new research, collision of the dead stars could become the catalyst of creation of valuable metal. By the words of leading author of research Edo Berger they consider that the amount of the gold which made and has been thrown out during merge of two neutron stars, can be comparable weighing 10 Moon – quite decently. Berger and his colleagues studied short gamma splash which was noticed on Earth orbit by the spacecraft of NASA of Swift at the beginning of June.
Scientists learned of what were constructed the first stars and galaxies of the Universe. Thanks to a radio telescope of CSIRO which is located in the Australian Observatory Parkes, astronomers could find the main construction material from which the first stars and galaxies of our Universe were created. BY the words of Professor Ron Ekers the telescope of CSIRO is one of the few telescopes in the world which could carry out such difficult work and find a material from which the first stars and the first galaxies in the Universe were created. It appeared that cold molecular hydrogen (H2) was the key material of forming the first stars and galaxies. It was found in early stars and galaxies with help of CO intermediary gas which radiates radio waves. To make the discovery, scientists studied the remote protogalaxies and other protoobjects of the Universe.
The group of astronomers of the Goettingen university in Germany and the British university in Herfordshira conducted new researches of a star of Gliese 667C and found round it seven candidates in exoplanets. Three of these exoplanets has potentially habitable zones. According to the scientists, six found exoplanets are very reliable, and a signal from the seventh, Gliese 667C-h, can be false. Nevertheless, uniqueness of system is not in a large number of planets, and the habitable zone, which is the area where existence of liquid water is possible. Three potentially manned planets in one system are now an absolute record. Besides, in Gliese 667C they occupy all possible orbits. For other planets in the habitable zone simply don’t remain places.
The star, which is close to Earth, grows in constellation Hydra, actively “eating” gas from the protoplanetary disk, in the same way could develop the Sun. TW of the constellation Hydra — being at distance from our planet a star age of 10 million years became about 180 light years object of research of scientists. The star weight is slightly less than Sun and have own protoplanetary disk. According to astronomers studying TW of the constellation Hydra, they will be able to understand that happened to our Sun when it was “kid”. In the work scientists used the data obtained by orbital x-ray observatory of “Chandr” and land telescopes. It became clear that for the growth of star of the constellation Hydra “exhausts” from a protoplanetary disk gas. Then the gas moves on lines of a magnetic field to star poles.
Astrophysics found an object with abnormal behavior, capable to change the developed system of classification of neutron stars: magnetar with very weak magnetic field. According to the astrophysics it is anomaly among anomalies. Magnetar is a rare class of neutron stars, which differ ability to make bright flashes of gamma radiation and which magnetic field are many orders more than a magnetic field of neutron stars. Neutron stars represent the remains of usual stars with very high density: so high that electrons are absorbed by protons and turn into neutrons. Besides, at collapse of an object with abnormal behavior all its magnetic field is pulled together after substance in a sphere with a diameter about 20 kilometers and for this reason intensity of a field sharply increases on 11-12 orders.
Scientists found mysterious hot spots in a red supergiant star. Astronomers submitted the photo of an external layer of the atmosphere of a Betelgeuse star. It is the red supergiant next to Earth. It is very bright star located in constellation of Orion, which is the semiregular variable star which shine changes from 0,2 up to 1,2 star sizes and on the average makes near 0,7m. Red color of a star is easily noticeable at supervision by naked eye. The new photo of this star opens secrets of structure of substance, which proceeds from a star. In the photo on the right is visible the Betelgeuse star and her orbital circles. The photo was made by the camera of a radio telescope of MERLIN of Jodrell Bank Observatory. The Betelgeuse star is in 1000 of times massive from our Sun, but at distance of 650 light years from Earth, it still looks as a small point. In spite of the fact that it is a cold pro-evolving star, scientists found on it strange hot spots.
In frames of NASAs’ mission of European Space Agency (ESA), the astronomers found some youngest stars in the Orion Molecular Cloud Complex . These stars were discovered by some astronomers from different observatories from Sweden and Germany. These astronomers collaborated in the European Space Agency (ESA) mission for understanding the formation of new stars. The discovery gives the chance to scientists to understand the formation of the star. The star comes to life from the gravitational collapse of gas and dust clouds. Finding the protostars in the earliest time, poses a challenge. For a long time the astronomers had observed the Orion Molecular Cloud Complex, but had not found any new forming star, until the Herschel telescope observed the region. Herschel found the protostars by infrared, long-wavelength light, which can shine through the clouds.