28 янв 2019 г. - Sun
Описание:
Although the Sun looks like a perfect sphere from the Earth's point of view, it is not. It is not a perfect sphere due to its polar and equatorial diameter being different by 10 km. The Sun is mostly composed of hydrogen and helium and its 4.6 billion years old.
Добавлено на ленту времени:
Дата:
Изображения:
![]()