Which of the stars is closer: located at a distance of 25 pc or 60 sv. years old?
| September 16, 2020 | Education
1 parsec = (150,000,000) / (3.1416 / 180/3600) = 3.094e13 km
1 sv year = 300000 * 86400 * 365.25 = 9.467e12 km
25 parsecs = 3.094e13 * 25 = 7.735e14 km = 82 light years
means 60 sv years closer.
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.