A photo from open sources
Japanese astronomer Koichi Itagaki discovered in the constellation Dolphin the brightest new star since 1999 – as the scientists call the case, when there is a sharp increase in the brightness of celestial bodies, reported in Central Bureau of Astronomical Telegrams. In the course of observations On August 14, Itagaki was the first to see in the constellation Dolphin (adjacent to the constellations Cygnus and Aquarius) previously unnoticed sixth magnitude star. In previous pictures of the same area didn’t find any objects (at least brighter than the 13th magnitude), reports RIA Novosti. Later the appearance of a new astronomers from Belarus, Russia confirmed (network of telescopes “Master” MSU), other countries. The brightness of the new star continues to grow – to date, she has reached a magnitude of 4.3. it the brightest new in our galaxy since May 1999, when in a new star flashed up the constellation Parusov, the brightness of which reached 3.1.
“Now she can be seen with the naked eye wherever there is weather, except for big cities. In splendor, she is already blocked the fast new 2002 (V4743 Sgr), but hardly it will become brighter than the new 1999, flared up in the southern sky, in the constellation Sails. It’s a rare thing anyway, so hurry observe, “said astronomer Leonid Elenin, an employee of the Institute applied mathematics named after Keldysh.
Flashes of new associated with explosions in double stellar systems, one of the components of which is a white dwarf (“burnt out” a star where the thermonuclear reaction, luminous due to residual heat), and the second is a star, which is slightly lighter and colder than the sun.
The more massive white dwarf “sucks” hydrogen from the companion, and at some point in its hydrogen shell ignites thermonuclear reaction – a thermonuclear explosion of this shell occurs, and the brightness of a star increases tens of thousands of times. Days later, and sometimes years, the brightness of a star decreases, but there are also repeated new ones, where thermonuclear “self-explosions” can occur in several times.
Dolphins Russia
