According to observations, the length of the tail is approximately 150 thousand kilometers. Astronomers said that the next appropriate time will come only in the spring of 2027 to observe this phenomenon in Russia.
In order to obtain a mercury picture with the tail, NSU’s Vega Observatory Astronomers used a combination of various factors: maximum radial speed compared to the sun, angular removal from the sun and appropriate weather conditions. As the NSU Observatory Engineer Yegor Konyaev explained, the formation mechanism of the mercury tail is similar to how the tails of the comets are formed. Due to the magnetic field of weak gravity and mercury, the atoms of the elements of the atmosphere such as sodium, hydrogen and helium are destroyed by the solar wind that forms the tail.
Source: Ferra

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