Happy Birthday, Star. Scientists have 18 years of watching the birth of the New World





Pregnancy and childbirth - a process that takes about 9 months. It seems that this is a very long time. But the birth of stars - a much longer process, lasting tens and hundreds (if not millions) of thousands of years. Earth scientists monitor the process of the birth of one of the stars for over 18 years. We are talking about W75N (B) -VLA2 in the constellation Cygnus, which is removed from the earth at a distance of about 4, 2 thousand light-years. The first picture was taken protostar in 1996, and the last - in 2014.

Observation of the protostar is conducted by scientists using radio telescopes. It is worth noting that even in 18 years the birthplace of stars and the entire system has undergone significant changes. So, in 1996, scientists have seen quite small (in star scale) region of ionized wind, which was thrown protostar in different directions around the same distance. But the new images show already deformation of ionized substances.



Specialists are going to observe the star and on, and the observations are almost in real time (as far as possible at such a distance). Now astronomers are watching very unique event - the formation of stars, from the earliest stages.



It is worth noting that the protostar VLA2 W75N (B) -VLA 2 mass of the Sun is approximately 2 times. Now she is very young - she was only a few thousand years. Observation, according to experts, should help clarify how the formation and development of stars in the universe. However, the star is fully formed only through hundreds of thousands of years, so modern scholars can not see the end of the process of formation of newborn stars.

Source: geektimes.ru/post/248558/

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