How to distinguish an “old” comet from a “young” one?
September 23, 2020
Young comets are usually referred to as comets that have made a small number of perihelion passages. These comets have intense gas release. “Old” comets are short-period comets that have repeatedly passed near the Sun. Their activity is significantly lower than that of the “young” ones.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.